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Course Name (Legal Political and Ethical Dimensions of
Business)MGMT520
Week 2: Assignment Instructions
In each week the learning assignment is designed to
demonstrate your competence with the Terminal Course
Objectives of the course. Prior to working on the assignment,
you should read through the week’s chapters and lesson.
Clearly identify your work with your name, the date, the week
number and the assignment name, and upload work to the
Dropbox.
The questions are designed to probe the higher levels of
thinking and learning such as analyzing, evaluating and
creating, and so there often are no “correct” answers. Instead of
focusing and who wins or loses the case, you should analyze,
evaluate and create alternative solutions to the various issues
presented while arguing and debating the connections between
business, law, politics and ethics.
Terminal Course Objective: G
Case Study: International and World Trade Law - Counterfeiting
Write a 1-2 page reflective paper (double spaced) on the
following questions while discussing the connections between
business, law, politics and ethics.
One: There has been a movement in the last decade encouraging
people to “buy American.” Discuss the legal and ethical issues
related to boycotting goods from other countries. What are the
practical business implications of such a move?
Two: The World Trade Organization, or WTO, is the largest and
most influential of the trade organizations. China and other
heavy counterfeiting nations are part of this group. What could
WTO-participating nations do to address the problems of
counterfeiting? What should they do?
Three: The United Nations Security Council, the main decision-
making body at the UN, is comprised of five regular members:
China, France, the Russian Federation, the United Kingdom and
the United States. Ten more members are elected from the
General Assembly. Given the make-up of the committee, what
type of action might the UN take with regard to the
counterfeiting issue?
Submit your assignment to the Dropbox.
· 10165 - CHEM - 131 - Section 001 - Spring 2016 - General
Chemistry Lec II
Top of Form
Question 1
Correct
Mark 3.00 out of 3.00
Flag question
Question text
All of the following are clues that a chemical reaction has taken
place except
The reactant is smaller.
a.A flame occurs.
b.A color change occurs.
c. A solid forms.
Question 2
Question text
Balance the following equation in standard form and determine
the sum of the coefficients.
a.6
b.4
c.3
d.14
e.7
Question 3
Question text
Balance this equation using the smallest possible integers, S +
HNO3 → H2SO4 + NO2 + H2O. What is the coefficient of
water.
Select one:
a.2
b.6
c.8
d. 1
e.
Question 4
Question text
When the following equation is balanced using the smallest
possible integers, what is the coefficent of oxygen gas?
C7H16(g) + O2(g) → CO2(g) + H2O(g)
a.5
b.11
c.2
d.14
e.8
Question 5
Question text
True or false? The equation N2 + 3H2 → 2NH3 means that 1 g
of N2 reacts with 3 g of H2 to form 2 g of NH3.
Question 6
Question text
Which of the following statements is not true of balancing a
chemical equation?
Select one:
a.Subscripts in the reactants must be conserved in the products.
b.The law of conservation of matter must be followed.
c.Phases are often shown for each compound but are not critical
to balancing an equation.
d.All of the above statements (a-d) are true.
e.Coefficients are used to balance the atoms on both sides.
Question 7
CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)
Select one:
a.oxidation-reduction
b.two of these
c.synthesis
d. decomposition
e.combustion
Question 8
Question text
Classify the following reaction:
2Mg(s) + O2(g) → 2MgO(s)
Select one:
a.synthesis
b.oxidation-reduction
c. a-c are all correct.
d.combustion
e.two of the above
Question 9
The equation 2Ag2O(s) → 4Ag(s) + O2(g) is a(n)
______________ reaction.
Select one:
a.synthesis
b.two of these
c. oxidation-reduction
d.decomposition
e.combustion
Question 10
Question text
The reaction 2K(s) + Br2(l) → 2KBr(s) is a(n) ______________
reaction.
Select one:
a.acid-base
b.oxidation-reduction
c.precipitation
d. single-replacement
e.double-displacement
Question 11
When the following equation is balanced in standard form, what
is the coefficient in front of the H2O?
C8H18(g) + O2(g) CO2(g) + H2O(g)
a.8
b.18
c.16
d.25
e.1
Question 12
Which of the following is a strong acid?
Select one:
a.phosphoric acid
b.acetic acid
c.hydrofluoric acid
d.lactic acid
e.hydrochloric acid
Question 13
Question text
Which of the following statements is not true?
a.Two nonmetals can undergo an oxidation-reduction reaction.
b.A metal-nonmetal reaction involves electron transfer.
c.When two nonmetals react, the compound formed is ionic.
d.A metal-nonmetal reaction can always be assumed to be an
oxidation-reduction reaction.
e.When a metal reacts with a nonmetal, an ionic compound is
formed.
Question 14
Question text
17.7 g of Mg represents how many moles?
Select one:
a.none of these
b.1.37 mol
c.42.0 mol
d.4.30 × 102 mol
e.0.728 mol
Correct
Question 15
Question text
21.2 g of oxygen contains
a.none of the above
b.1.28 × 1025 oxygen molecules
c.7.98 × 1023 oxygen atoms
d.42 amu
e.1.33 mol of oxygen molecules
Question 16
Question text
45 atoms of calcium weigh
Select one:
a.1.804 × 103 g
b.900 amu
c.900 g
d.1.804 × 103 amu
e.2.71 × 1025 amu
Question 17
Question text
8.55 x 10-3 moles of an unknown compound has a mass of 0.257
g. The compound could be:
Select one:
a.C5H12
b.CH4
c.C3H8
d.C2H6
e.C4H10
Question 18
A 1.73-mole sample of H2O2 weighs
Select one:
a. 31.2 amu
b. 31.2 g
c. 1.73 g
d. 58.8 g
e 35.7 g
Question 19
Question text
A certain compound has an empirical formula of NH2O. Its
molar mass is between 55 and 65 g/mol. Its molecular formula
is
Select one:
a N2H4O2
b N2H2O2
c NH2O
d not calculable
Question 20
Question text
A certain compound is found to have the percent composition
(by mass) of 85.63% C and 14.37% H. The molecular formula
contains 3 carbon atoms. How many hydrogen atoms are
contained in a molecular of this compound?
Select one:
A 8
b3
c 2
d 4
e 6
Question 21
A compound is composed of element X and hydrogen. Analysis
shows the compound to be 80% X by mass, with three times as
many hydrogen atoms as X atoms per molecule. Which element
is element X?
Select one:
A F
b none of these
c He
d S
e C
22
Calculate the mass of 5.333 moles of silver nitrate.
a.none of these
b.906.1 g
c.820.8 g
d.31.9 g
e.3.139 × 10–2 g
Question 23
Question text
Convert: 3.577 mol K2O = _____________ g K2O
a.26.33
b 3.577
c.337.0
d 3.797 × 10–2
e 2.154 × 1024
Question 24
Convert: 9.41 mol Cu(NO3)2 = ____________ g Cu(NO3)2
Select one:
none of these
b 1.77 × 103
c 1.61 × 103
d 5.02 × 10–2
e 19.9
Question 25
Question text
Determine the percentage composition (by mass) of tin in
SnCl2.
Select one:
a.62.6 %
b.77.0 %
c 38.5 %
d 61.5 %
e 18.7 %
Question 26
Question text
The empirical formula of styrene is CH; its molar mass is 104.1
g/mol. What is the molecular formula of styrene?
Select one:
a.C8H8
b.C2H4
c C6H6
d C10H12
Question 27
What is the molar mass of Li3PO4?
Select one:
a 83.79 g/mol
b 115.79 g/mol
c 108.85 g/mol
d 6.02 × 1023 g/mol
e 84.82 g/mol
Question 28
Question text
Which represents the greatest mass?
Select one:
a.1.0 mol P
b.1.0 mol K
c. all the same
d.1.0 mol Al
e.1.0 mol I
Question 29
True or false? One atomic mass unit (amu) is the mass (in
grams) of one mole of the substance.
Question 30
True or false? The empirical formula and the molecular formula
for a compound cannot be the same.
Question 31
True or false? The mole can be defined as the number equal to
the number of oxygen atoms in 32.00 g of oxygen.
Question 32
An excess of Al and 9.7 mol of Br2 are reacted according to the
equation
How many moles of AlBr3 will be formed assuming
100% yield?
Select one:
a.4.9 mol
b.6.5 mol
c.9.7 mol
d.14.6 mol
e.3.2 mol
Question 33
Calculate the mass of water produced when 6.25 g of methane,
CH4, reacts with an excess of oxygen in the following
unbalanced reaction.
Select one:
a. 7.02 g H2O
b 0.78 g H2O
c. 14.0 g H2O
d.2.25 × 102 g H2O
e.0.347 g H2O
Question 34
Consider the equation: . The molar mass of B is 50.0 g/mol.
Which of the following statements is true when equal masses of
A and B are reacted?
a.If the molar mass of A is less than the molar mass of B, then
B must determine how much C is produced.
b. If the molar mass of A is greater than the molar mass of B,
then B must determine how much C is produced.
c.If the molar mass of A is greater than the molar mass of B,
then A must determine how much C is produced.
d.If the molar mass of A is less than the molar mass of B, then
A must determine how much C is produced.
e If the molar mass of A is the same as the molar mass of B,
then A and B react in a perfect stoichiometric ratio and both
determine how much C is produced.
Question 35
Consider the following unbalanced equation:
How many moles of water are needed to react with 232. g of
Al4C3?
a.0.620 mol
b.0.134 mol
c 19.3 mol
d 1.61 mol
e 348. mol
Question 36
Tin(II) fluoride is added to some dental products to help prevent
cavities. Manufacturers have to make the tin(II) fluoride first,
though, before they can add it to their products.
How many grams of tin(II) fluoride can be made from 58.0 g of
hydrogen fluoride if there is plenty of tin available to react?
a. 908. g
B 227. g
c 116. g
d 454. g
e 1.45 g
Question 37
What mass of carbon dioxide will be produced when 12.9 g of
butane reacts with an excess of oxygen in the following
reaction?
a none of these
b 39.1 g CO2
c 4.88 g CO2
d 78.1 g CO2
e 51.6 g CO2
Question 38
True or false? A balanced chemical equation is one that has the
same number of moles of molecules on each side of the
equation.
Question 39
Question text
True or false? A mole ratio is used to convert the moles of a
starting substance to the moles of a desired substance.
Question 40
Question text
True or false? The equation can be interpreted by saying that
1 mol of N2 reacts with 3 mol of H2 to form 2 mol of NH3.
Question 41
Question text
A hydrogen balloon is at 25oC, 1.00 atm and has a volume of
1.00 L. How many grams of argon gas must be added to the
hydrogen balloon to achieve a volume of 3.84 L at constant
temperature and pressure?
Select one:
a 4.64 g
b 93.9 g
c none of these
d 6.27 g
e 7.91 g
Question 42
Question text
A sample of an ideal gas containing 0.918 mol is collected at
742 torr pressure and 31°C. Calculate the volume.
Select one:
aL
b 23.5 L
cL
d none of these
e 2.39 L
Question 43
Question text
A sample of oxygen gas (O2) has a volume of 7.86 L at a
temperature of 19oC and a pressure of 1.38 atm. Calculate the
moles of O2 molecules present in this gas sample.
Select one:
A none of these
B 0.226 mol
C 6.96 mol
D 0.905 mol
E 0.453 mol
Question 44
Question text
An oxygen sample has a volume of 9.77 L at 27°C and 800.0
torr. How many oxygen molecules does it contain?
Question 45
Avogadro's law states that:
a The volume of a fixed amount of gas is indirectly proportional
to its temperature in Kelvin at constant pressure.
b The volume of a fixed amount of gas is inversely proportional
to its pressure at constant temperature.
c The total pressure of a mixture of gases is the simple sum of
the partial pressure of all of the gaseous compounds.
d Equal amounts of gases occupy the same volume at constant
temperature and pressure.
e The volume of a fixed amount of gas is directly proportional
to its temperature in Kelvin at constant pressure.
Question 46
Boyle's law states that:
Select one:
a Equal amounts of gases occupy the same volume at constant
temperature and pressure.
b The volume of a fixed amount of gas is inversely proportional
to its pressure at constant temperature.
c The volume of a fixed amount of gas is proportional to its
pressure at constant temperature.
d The volume of a fixed amount of gas is directly proportional
to its temperature in Kelvin at constant pressure.
e The total pressure of a mixture of gases is the simple sum of
the partial pressure of all of the gaseous compounds.
Question 47
Question text
Charles's law states that:
a.The volume of a fixed amount of gas is inversely proportional
to its pressure at constant temperature.
b. The total pressure of a mixture of gases is the simple sum of
the partial pressure of all of the gaseous compounds.
C The volume of a fixed amount of gas is directly proportional
to its temperature in Kelvin at constant pressure.
D The volume of a fixed amount of gas is indirectly
proportional to its temperature in Kelvin at constant pressure.
E Equal amounts of gases occupy the same volume at constant
temperature and pressure.
Question 48
A solution has [H+] = 4.7 × 10-8 M. The pH of this solution is
a.9.80
b.7.33
c.6.01
d. none of these
e.6.67
Question 49
A solution has a pH of 3.66. The pOH of this solution is
Select one:
a.10.34
b.none of these
c.10.24
d.3.76
e. 3.66
Question 50
Question text
A solution where [H+] = 10-13 M is ______________.
Select one:
A acidic
B basic
C strongly acidic
d.neutral
e.two of these
Question 51
Question text
Calculate the [H+] in a solution that has a pH of 2.39.
Select one:
aM
b none of these
c 11.61 M
d 2.39 M
eM
Question 52
Question text
What is the pH of a 3.6 M solution of HClO4?
Select one:
a.
0.56
b.
13.44
c.
–0.56
d.
14.56
e.
minus infinity
Question 53
Question text
What is the pH of a solution that has [OH-] = .
Select one:
a.
3.84 M
b.
1.92 M
c.
none of these
d.
10.16 M
e.
6.90 M
Question 54
Not answered
Marked out of 3.00
Flag question
Question text
Which of the following is not a strong acid?
Select one:
a.
HClO4
b.
H2SO4
c.
CH3COOH
d.
HCl
e.
HNO3
Question 55
Not answered
Marked out of 3.00
Flag question
Question text
Which of the following statements is/are correct?
Select one:
a.
None of the above statements (a-c) are correct.
b.
In a basic solution, [OH-] > [H+].
c.
All of the above statements (a-c) are correct.
d.
In an acidic solution, [H+] > [OH-].
e.
In a neutral solution, [H+] = [OH-].
Question 56
Not answered
Marked out of 3.00
Flag question
Question text
Choose the correct Lewis structure for the NH4+ ion.
Select one:
a.
b.
c.
none of these
d.
e.
Question 57
Not answered
Marked out of 3.00
Flag question
Question text
Consider the drawings below:
Which of the following statements are true?
I. The electrons in each molecule tend to be attracted to the
most electronegative element.
II. Each molecular drawing follows the localized electron
model.
III. Both HF and CO2 are linear molecules and therefore
nonpolar.
IV. The bond angles of NH3 are slightly less than 109.5o
because the lone pair compresses the angles between the
bonding pairs.
Select one:
a.
II, IV
b.
All of the above statements (I - IV) are correct.
c.
I, III, IV
d.
I, II, III
e.
I, II, IV
Question 58
Not answered
Marked out of 3.00
Flag question
Question text
How many lone pairs of electrons are in the Lewis structure for
compound, HF?
Select one:
a.
3
b.
4
c.
1
d.
0
e.
none of these
Question 59
Not answered
Marked out of 3.00
Flag question
Question text
How many of the following will have Lewis structures with
multiple bonds?
CO, CO2, CO32-, N2, O2
Select one:
a.
2
b.
1
c.
3
d.
5
e.
4
Question 60
Not answered
Marked out of 3.00
Flag question
Question text
The number of polar covalent bonds in SF4 is
Select one:
a.
none of these
b.
3
c.
2
d.
4
e.
1
Question 61
Not answered
Marked out of 3.00
Flag question
Question text
Which has a bent structure?
Select one:
a.
NH3
b.
CO2
c.
CaCl2
d.
O2
e.
H2O
Question 62
Not answered
Marked out of 3.00
Flag question
Question text
Which has a linear structure?
Select one:
a.
SCl2
b.
OF2
c.
CO2
d.
CaCl2
e.
SO2
Question 63
Not answered
Marked out of 3.00
Flag question
Question text
Which has a planar structure?
Select one:
a.
CO32-
b.
H3O+
c.
CH4
d.
NF3
e.
SO32-
Question 64
Not answered
Marked out of 3.00
Flag question
Question text
Which has a tetrahedral structure?
Select one:
a.
CO32-
b.
NH3
c.
SO3
d.
CH4
e.
SO32-
Question 65
Not answered
Marked out of 3.00
Flag question
Question text
Which has a trigonal pyramid structure?
Select one:
a.
NO3-
b.
SO32-
c.
CO32-
d.
CH4
e.
SO3
Question 66
Not answered
Marked out of 3.00
Flag question
Question text
Which of the following bonds does not have a dipole moment?
Select one:
a.
C-H
b.
B-F
c.
Br-H
d.
F-F
e.
F-H
Question 67
Not answered
Marked out of 3.00
Flag question
Question text
Which of these has more than one reasonable resonance
structure?
Select one:
a.
SiCl4
b.
BH4-
c.
NO3-
d.
N2H4
e.
PH3
Question 68
Not answered
Marked out of 1.00
Flag question
Question text
True or false? A bond is a force that holds groups of two or
more atoms together and makes them function as a unit.
Select one:
True
False
Question 69
Not answered
Marked out of 1.00
Flag question
Question text
True or false? CH4 has ionic bonds.
Select one:
True
False
Question 70
Not answered
Marked out of 1.00
Flag question
Question text
True or false? Covalent bonding occurs when a metal reacts
with a nonmetal.
Select one:
True
False
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Course Name (Legal Political and Ethical Dimensions of Business)MG.docx

  • 1. Course Name (Legal Political and Ethical Dimensions of Business)MGMT520 Week 2: Assignment Instructions In each week the learning assignment is designed to demonstrate your competence with the Terminal Course Objectives of the course. Prior to working on the assignment, you should read through the week’s chapters and lesson. Clearly identify your work with your name, the date, the week number and the assignment name, and upload work to the Dropbox. The questions are designed to probe the higher levels of thinking and learning such as analyzing, evaluating and creating, and so there often are no “correct” answers. Instead of focusing and who wins or loses the case, you should analyze, evaluate and create alternative solutions to the various issues presented while arguing and debating the connections between business, law, politics and ethics. Terminal Course Objective: G Case Study: International and World Trade Law - Counterfeiting Write a 1-2 page reflective paper (double spaced) on the following questions while discussing the connections between business, law, politics and ethics. One: There has been a movement in the last decade encouraging people to “buy American.” Discuss the legal and ethical issues related to boycotting goods from other countries. What are the practical business implications of such a move? Two: The World Trade Organization, or WTO, is the largest and most influential of the trade organizations. China and other heavy counterfeiting nations are part of this group. What could
  • 2. WTO-participating nations do to address the problems of counterfeiting? What should they do? Three: The United Nations Security Council, the main decision- making body at the UN, is comprised of five regular members: China, France, the Russian Federation, the United Kingdom and the United States. Ten more members are elected from the General Assembly. Given the make-up of the committee, what type of action might the UN take with regard to the counterfeiting issue? Submit your assignment to the Dropbox. · 10165 - CHEM - 131 - Section 001 - Spring 2016 - General Chemistry Lec II Top of Form Question 1 Correct Mark 3.00 out of 3.00 Flag question Question text All of the following are clues that a chemical reaction has taken place except The reactant is smaller. a.A flame occurs. b.A color change occurs. c. A solid forms. Question 2
  • 3. Question text Balance the following equation in standard form and determine the sum of the coefficients. a.6 b.4 c.3 d.14 e.7 Question 3 Question text Balance this equation using the smallest possible integers, S + HNO3 → H2SO4 + NO2 + H2O. What is the coefficient of water. Select one: a.2 b.6 c.8 d. 1 e. Question 4 Question text When the following equation is balanced using the smallest possible integers, what is the coefficent of oxygen gas? C7H16(g) + O2(g) → CO2(g) + H2O(g) a.5 b.11 c.2 d.14 e.8 Question 5 Question text True or false? The equation N2 + 3H2 → 2NH3 means that 1 g of N2 reacts with 3 g of H2 to form 2 g of NH3. Question 6 Question text Which of the following statements is not true of balancing a
  • 4. chemical equation? Select one: a.Subscripts in the reactants must be conserved in the products. b.The law of conservation of matter must be followed. c.Phases are often shown for each compound but are not critical to balancing an equation. d.All of the above statements (a-d) are true. e.Coefficients are used to balance the atoms on both sides. Question 7 CH4(g) + 2O2(g) → CO2(g) + 2H2O(g) Select one: a.oxidation-reduction b.two of these c.synthesis d. decomposition e.combustion Question 8 Question text Classify the following reaction: 2Mg(s) + O2(g) → 2MgO(s) Select one: a.synthesis b.oxidation-reduction c. a-c are all correct. d.combustion e.two of the above Question 9 The equation 2Ag2O(s) → 4Ag(s) + O2(g) is a(n) ______________ reaction. Select one: a.synthesis b.two of these c. oxidation-reduction d.decomposition e.combustion Question 10
  • 5. Question text The reaction 2K(s) + Br2(l) → 2KBr(s) is a(n) ______________ reaction. Select one: a.acid-base b.oxidation-reduction c.precipitation d. single-replacement e.double-displacement Question 11 When the following equation is balanced in standard form, what is the coefficient in front of the H2O? C8H18(g) + O2(g) CO2(g) + H2O(g) a.8 b.18 c.16 d.25 e.1 Question 12 Which of the following is a strong acid? Select one: a.phosphoric acid b.acetic acid c.hydrofluoric acid d.lactic acid e.hydrochloric acid Question 13 Question text Which of the following statements is not true? a.Two nonmetals can undergo an oxidation-reduction reaction. b.A metal-nonmetal reaction involves electron transfer. c.When two nonmetals react, the compound formed is ionic. d.A metal-nonmetal reaction can always be assumed to be an oxidation-reduction reaction. e.When a metal reacts with a nonmetal, an ionic compound is formed.
  • 6. Question 14 Question text 17.7 g of Mg represents how many moles? Select one: a.none of these b.1.37 mol c.42.0 mol d.4.30 × 102 mol e.0.728 mol Correct Question 15 Question text 21.2 g of oxygen contains a.none of the above b.1.28 × 1025 oxygen molecules c.7.98 × 1023 oxygen atoms d.42 amu e.1.33 mol of oxygen molecules Question 16 Question text 45 atoms of calcium weigh Select one: a.1.804 × 103 g b.900 amu c.900 g d.1.804 × 103 amu e.2.71 × 1025 amu Question 17 Question text 8.55 x 10-3 moles of an unknown compound has a mass of 0.257 g. The compound could be: Select one: a.C5H12 b.CH4 c.C3H8 d.C2H6
  • 7. e.C4H10 Question 18 A 1.73-mole sample of H2O2 weighs Select one: a. 31.2 amu b. 31.2 g c. 1.73 g d. 58.8 g e 35.7 g Question 19 Question text A certain compound has an empirical formula of NH2O. Its molar mass is between 55 and 65 g/mol. Its molecular formula is Select one: a N2H4O2 b N2H2O2 c NH2O d not calculable Question 20 Question text A certain compound is found to have the percent composition (by mass) of 85.63% C and 14.37% H. The molecular formula contains 3 carbon atoms. How many hydrogen atoms are contained in a molecular of this compound? Select one: A 8 b3 c 2 d 4 e 6 Question 21 A compound is composed of element X and hydrogen. Analysis shows the compound to be 80% X by mass, with three times as many hydrogen atoms as X atoms per molecule. Which element is element X?
  • 8. Select one: A F b none of these c He d S e C 22 Calculate the mass of 5.333 moles of silver nitrate. a.none of these b.906.1 g c.820.8 g d.31.9 g e.3.139 × 10–2 g Question 23 Question text Convert: 3.577 mol K2O = _____________ g K2O a.26.33 b 3.577 c.337.0 d 3.797 × 10–2 e 2.154 × 1024 Question 24 Convert: 9.41 mol Cu(NO3)2 = ____________ g Cu(NO3)2 Select one: none of these b 1.77 × 103 c 1.61 × 103 d 5.02 × 10–2 e 19.9 Question 25 Question text Determine the percentage composition (by mass) of tin in SnCl2. Select one: a.62.6 % b.77.0 %
  • 9. c 38.5 % d 61.5 % e 18.7 % Question 26 Question text The empirical formula of styrene is CH; its molar mass is 104.1 g/mol. What is the molecular formula of styrene? Select one: a.C8H8 b.C2H4 c C6H6 d C10H12 Question 27 What is the molar mass of Li3PO4? Select one: a 83.79 g/mol b 115.79 g/mol c 108.85 g/mol d 6.02 × 1023 g/mol e 84.82 g/mol Question 28 Question text Which represents the greatest mass? Select one: a.1.0 mol P b.1.0 mol K c. all the same d.1.0 mol Al e.1.0 mol I Question 29 True or false? One atomic mass unit (amu) is the mass (in grams) of one mole of the substance. Question 30 True or false? The empirical formula and the molecular formula for a compound cannot be the same. Question 31
  • 10. True or false? The mole can be defined as the number equal to the number of oxygen atoms in 32.00 g of oxygen. Question 32 An excess of Al and 9.7 mol of Br2 are reacted according to the equation How many moles of AlBr3 will be formed assuming 100% yield? Select one: a.4.9 mol b.6.5 mol c.9.7 mol d.14.6 mol e.3.2 mol Question 33 Calculate the mass of water produced when 6.25 g of methane, CH4, reacts with an excess of oxygen in the following unbalanced reaction. Select one: a. 7.02 g H2O b 0.78 g H2O c. 14.0 g H2O d.2.25 × 102 g H2O e.0.347 g H2O Question 34 Consider the equation: . The molar mass of B is 50.0 g/mol. Which of the following statements is true when equal masses of A and B are reacted? a.If the molar mass of A is less than the molar mass of B, then B must determine how much C is produced. b. If the molar mass of A is greater than the molar mass of B, then B must determine how much C is produced. c.If the molar mass of A is greater than the molar mass of B, then A must determine how much C is produced. d.If the molar mass of A is less than the molar mass of B, then
  • 11. A must determine how much C is produced. e If the molar mass of A is the same as the molar mass of B, then A and B react in a perfect stoichiometric ratio and both determine how much C is produced. Question 35 Consider the following unbalanced equation: How many moles of water are needed to react with 232. g of Al4C3? a.0.620 mol b.0.134 mol c 19.3 mol d 1.61 mol e 348. mol Question 36 Tin(II) fluoride is added to some dental products to help prevent cavities. Manufacturers have to make the tin(II) fluoride first, though, before they can add it to their products. How many grams of tin(II) fluoride can be made from 58.0 g of hydrogen fluoride if there is plenty of tin available to react? a. 908. g B 227. g c 116. g d 454. g e 1.45 g Question 37 What mass of carbon dioxide will be produced when 12.9 g of butane reacts with an excess of oxygen in the following reaction? a none of these b 39.1 g CO2 c 4.88 g CO2 d 78.1 g CO2 e 51.6 g CO2 Question 38
  • 12. True or false? A balanced chemical equation is one that has the same number of moles of molecules on each side of the equation. Question 39 Question text True or false? A mole ratio is used to convert the moles of a starting substance to the moles of a desired substance. Question 40 Question text True or false? The equation can be interpreted by saying that 1 mol of N2 reacts with 3 mol of H2 to form 2 mol of NH3. Question 41 Question text A hydrogen balloon is at 25oC, 1.00 atm and has a volume of 1.00 L. How many grams of argon gas must be added to the hydrogen balloon to achieve a volume of 3.84 L at constant temperature and pressure? Select one: a 4.64 g b 93.9 g c none of these d 6.27 g e 7.91 g Question 42 Question text A sample of an ideal gas containing 0.918 mol is collected at 742 torr pressure and 31°C. Calculate the volume. Select one: aL b 23.5 L cL d none of these e 2.39 L Question 43 Question text A sample of oxygen gas (O2) has a volume of 7.86 L at a
  • 13. temperature of 19oC and a pressure of 1.38 atm. Calculate the moles of O2 molecules present in this gas sample. Select one: A none of these B 0.226 mol C 6.96 mol D 0.905 mol E 0.453 mol Question 44 Question text An oxygen sample has a volume of 9.77 L at 27°C and 800.0 torr. How many oxygen molecules does it contain? Question 45 Avogadro's law states that: a The volume of a fixed amount of gas is indirectly proportional to its temperature in Kelvin at constant pressure. b The volume of a fixed amount of gas is inversely proportional to its pressure at constant temperature. c The total pressure of a mixture of gases is the simple sum of the partial pressure of all of the gaseous compounds. d Equal amounts of gases occupy the same volume at constant temperature and pressure. e The volume of a fixed amount of gas is directly proportional to its temperature in Kelvin at constant pressure. Question 46 Boyle's law states that: Select one: a Equal amounts of gases occupy the same volume at constant temperature and pressure. b The volume of a fixed amount of gas is inversely proportional to its pressure at constant temperature. c The volume of a fixed amount of gas is proportional to its pressure at constant temperature. d The volume of a fixed amount of gas is directly proportional
  • 14. to its temperature in Kelvin at constant pressure. e The total pressure of a mixture of gases is the simple sum of the partial pressure of all of the gaseous compounds. Question 47 Question text Charles's law states that: a.The volume of a fixed amount of gas is inversely proportional to its pressure at constant temperature. b. The total pressure of a mixture of gases is the simple sum of the partial pressure of all of the gaseous compounds. C The volume of a fixed amount of gas is directly proportional to its temperature in Kelvin at constant pressure. D The volume of a fixed amount of gas is indirectly proportional to its temperature in Kelvin at constant pressure. E Equal amounts of gases occupy the same volume at constant temperature and pressure. Question 48 A solution has [H+] = 4.7 × 10-8 M. The pH of this solution is a.9.80 b.7.33 c.6.01 d. none of these e.6.67 Question 49 A solution has a pH of 3.66. The pOH of this solution is Select one: a.10.34 b.none of these c.10.24 d.3.76 e. 3.66 Question 50 Question text A solution where [H+] = 10-13 M is ______________. Select one: A acidic
  • 15. B basic C strongly acidic d.neutral e.two of these Question 51 Question text Calculate the [H+] in a solution that has a pH of 2.39. Select one: aM b none of these c 11.61 M d 2.39 M eM Question 52 Question text What is the pH of a 3.6 M solution of HClO4? Select one: a. 0.56 b. 13.44 c. –0.56 d. 14.56 e. minus infinity Question 53 Question text What is the pH of a solution that has [OH-] = . Select one: a. 3.84 M b. 1.92 M c.
  • 16. none of these d. 10.16 M e. 6.90 M Question 54 Not answered Marked out of 3.00 Flag question Question text Which of the following is not a strong acid? Select one: a. HClO4 b. H2SO4 c. CH3COOH d. HCl e. HNO3 Question 55 Not answered Marked out of 3.00 Flag question Question text Which of the following statements is/are correct? Select one: a. None of the above statements (a-c) are correct. b. In a basic solution, [OH-] > [H+]. c. All of the above statements (a-c) are correct. d.
  • 17. In an acidic solution, [H+] > [OH-]. e. In a neutral solution, [H+] = [OH-]. Question 56 Not answered Marked out of 3.00 Flag question Question text Choose the correct Lewis structure for the NH4+ ion. Select one: a. b. c. none of these d. e. Question 57 Not answered Marked out of 3.00 Flag question Question text Consider the drawings below: Which of the following statements are true? I. The electrons in each molecule tend to be attracted to the most electronegative element. II. Each molecular drawing follows the localized electron model. III. Both HF and CO2 are linear molecules and therefore nonpolar. IV. The bond angles of NH3 are slightly less than 109.5o because the lone pair compresses the angles between the
  • 18. bonding pairs. Select one: a. II, IV b. All of the above statements (I - IV) are correct. c. I, III, IV d. I, II, III e. I, II, IV Question 58 Not answered Marked out of 3.00 Flag question Question text How many lone pairs of electrons are in the Lewis structure for compound, HF? Select one: a. 3 b. 4 c. 1 d. 0 e. none of these Question 59 Not answered Marked out of 3.00 Flag question Question text How many of the following will have Lewis structures with
  • 19. multiple bonds? CO, CO2, CO32-, N2, O2 Select one: a. 2 b. 1 c. 3 d. 5 e. 4 Question 60 Not answered Marked out of 3.00 Flag question Question text The number of polar covalent bonds in SF4 is Select one: a. none of these b. 3 c. 2 d. 4 e. 1 Question 61 Not answered Marked out of 3.00 Flag question Question text Which has a bent structure?
  • 20. Select one: a. NH3 b. CO2 c. CaCl2 d. O2 e. H2O Question 62 Not answered Marked out of 3.00 Flag question Question text Which has a linear structure? Select one: a. SCl2 b. OF2 c. CO2 d. CaCl2 e. SO2 Question 63 Not answered Marked out of 3.00 Flag question Question text Which has a planar structure? Select one: a.
  • 21. CO32- b. H3O+ c. CH4 d. NF3 e. SO32- Question 64 Not answered Marked out of 3.00 Flag question Question text Which has a tetrahedral structure? Select one: a. CO32- b. NH3 c. SO3 d. CH4 e. SO32- Question 65 Not answered Marked out of 3.00 Flag question Question text Which has a trigonal pyramid structure? Select one: a. NO3- b.
  • 22. SO32- c. CO32- d. CH4 e. SO3 Question 66 Not answered Marked out of 3.00 Flag question Question text Which of the following bonds does not have a dipole moment? Select one: a. C-H b. B-F c. Br-H d. F-F e. F-H Question 67 Not answered Marked out of 3.00 Flag question Question text Which of these has more than one reasonable resonance structure? Select one: a. SiCl4 b. BH4-
  • 23. c. NO3- d. N2H4 e. PH3 Question 68 Not answered Marked out of 1.00 Flag question Question text True or false? A bond is a force that holds groups of two or more atoms together and makes them function as a unit. Select one: True False Question 69 Not answered Marked out of 1.00 Flag question Question text True or false? CH4 has ionic bonds. Select one: True False Question 70 Not answered Marked out of 1.00 Flag question Question text True or false? Covalent bonding occurs when a metal reacts with a nonmetal. Select one: True False Bottom of Form