5. A water sample with a total alkalinity of 2.00 x 10 molesL has .pdf
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5. A water sample with a total alkalinity of 2.00 x 10 moles/L has a pH of 7.00. Compute the equilibrium concentrations of CO2, HCOs , co,, and OH Note that water and carbon dioxide can replace carbonic acid in the Kai reaction without changing the value of Kal H2O + CO2 H+ + HCO, Ka1 = 4.5 x 10-7 Solution The equilibrim equations involved are: H2O +CO2 <---->H+ +HCO3- ka1=4.5*10^-7 HCO3- <--->CO32- +H+ ka2=4.8*10^-11 Also given, pH=-log [H+]=7.0 [H+]=10^-7 M ...........(a) [OH-]=kw/[H+]=10^-14/[H+]=10^-14.............(b) pH=pka +log [base]/[acid] [henderson-hasselbach equation] pka2=-log ka2=-log(4.8*10^-11)=10.3 7.0=10.3 +log[CO32-]/[HCO3-] or, [CO32-]/[HCO3-]=5.012e-4. or,[CO32-]=(5.012e-4.)[HCO3-]..................(1) Also, H2O +CO2 <---->H+ +HCO3- ka1=4.5*10^-7=[H+][HCO3-]/[CO2] for x=[H+]=[HCO3-] (at equilibrium) [CO2]=[CO2]o-x , [CO2]o=initial concentration,but x is very less for very less dissociation ( ka1 is very small) [CO2]eq=[CO2]o 4.5*10^-7=[H+][HCO3-]/[CO2]=x^2/[CO2] or,[CO2]eq=x^2/(4.5*10^-7)=[HCO3-]eq/(4.5*10^-7) [CO2]eq=[HCO3-]eq^2/(4.5*10^-7) ...................(2) total alkalnity=[HCO3-] +2[CO32-] +[OH-] -[H+]=2.0*10^-3 mol/L plugging in eqn (a),(b),(1) & (2) in the equation for total alkalinity, total alkalnity=[HCO3-] +2(5.012e-4.)[HCO3-]. =2.0*10^-3 mol/L or, [HCO3-]=1.997*10^-3 mol/L [CO32-]eq=(5.012e-4.)[HCO3-].=(5.012e-4.)(2.0*10^-3 mol/L)=1.002*10^-6 mol/l [H+]eq=[OH-]eq=10^-7 mol/L [CO2]=[HCO3-]eq^2/(4.5*10^-7) =(1.997*10^-3 mol/L)^2/(4.5*10^-7)=8.862 mol/L [CO2]eq=8.862*10^3 mol/L.
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![5. A water sample with a total alkalinity of 2.00 x 10 moles/L has a pH of 7.00. Compute the
equilibrium concentrations of CO2, HCOs , co,, and OH Note that water and carbon dioxide can
replace carbonic acid in the Kai reaction without changing the value of Kal H2O + CO2 H+ +
HCO, Ka1 = 4.5 x 10-7
Solution
The equilibrim equations involved are:
H2O +CO2 <---->H+ +HCO3- ka1=4.5*10^-7
HCO3- <--->CO32- +H+ ka2=4.8*10^-11
Also given, pH=-log [H+]=7.0
[H+]=10^-7 M ...........(a)
[OH-]=kw/[H+]=10^-14/[H+]=10^-14.............(b)
pH=pka +log [base]/[acid] [henderson-hasselbach equation]
pka2=-log ka2=-log(4.8*10^-11)=10.3
7.0=10.3 +log[CO32-]/[HCO3-]
or, [CO32-]/[HCO3-]=5.012e-4.
or,[CO32-]=(5.012e-4.)[HCO3-]..................(1)
Also, H2O +CO2 <---->H+ +HCO3- ka1=4.5*10^-7=[H+][HCO3-]/[CO2]
for x=[H+]=[HCO3-] (at equilibrium)
[CO2]=[CO2]o-x , [CO2]o=initial concentration,but x is very less for very less dissociation ( ka1
is very small)
[CO2]eq=[CO2]o
4.5*10^-7=[H+][HCO3-]/[CO2]=x^2/[CO2]
or,[CO2]eq=x^2/(4.5*10^-7)=[HCO3-]eq/(4.5*10^-7)
[CO2]eq=[HCO3-]eq^2/(4.5*10^-7) ...................(2)
total alkalnity=[HCO3-] +2[CO32-] +[OH-] -[H+]=2.0*10^-3 mol/L
plugging in eqn (a),(b),(1) & (2) in the equation for total alkalinity,
total alkalnity=[HCO3-] +2(5.012e-4.)[HCO3-]. =2.0*10^-3 mol/L
or, [HCO3-]=1.997*10^-3 mol/L
[CO32-]eq=(5.012e-4.)[HCO3-].=(5.012e-4.)(2.0*10^-3 mol/L)=1.002*10^-6 mol/l
[H+]eq=[OH-]eq=10^-7 mol/L
[CO2]=[HCO3-]eq^2/(4.5*10^-7) =(1.997*10^-3 mol/L)^2/(4.5*10^-7)=8.862 mol/L
[CO2]eq=8.862*10^3 mol/L](https://image.slidesharecdn.com/5-230708181450-905f6ab9/85/5-A-water-sample-with-a-total-alkalinity-of-2-00-x-10-molesL-has-pdf-1-320.jpg)
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Ionic equilibria & p h 1
The document discusses ionic equilibria and pH. It defines pH as the negative logarithm of the hydronium ion concentration in a solution. A pH below 7 indicates an acidic solution, while a pH above 7 indicates a basic or alkaline solution. The document also discusses how dilution affects pH by decreasing concentration and increasing pH. It presents the pH scale from 0-14 and discusses how to calculate pH and pOH values from concentrations. Examples are provided to demonstrate calculating pH for solutions of calcium hydroxide, acetic acid, and the ratio of carbon dioxide to bicarbonate ion concentrations in blood.
Equilibrium slideshare. WN.2011
This document discusses phase equilibrium and the concept of equilibrium constants (K). It defines homogeneous and heterogeneous equilibrium and explains how K is used to represent the position of equilibrium. It provides examples of calculating K for different chemical reactions and conditions, and explains how changing conditions like concentration, pressure, temperature affect the position of equilibrium according to Le Chatelier's principle.
Asam Basa Air Laut_Pertemuan 6
The document discusses acids, bases, and pH. It explains that acids donate H+ ions while bases accept H+ ions. Common acids include HCl and carbonic acid, while NaOH is a strong base. Neutralization reactions between acids and bases produce water and salts. Buffers resist changes in pH. The pH scale ranges from 0-14 with acidic solutions having a pH below 7 and basic solutions above 7. The carbonate buffering system and carbon dioxide system in the ocean help regulate ocean pH. Increasing carbon dioxide absorption is lowering ocean pH and threatening marine organisms with calcium carbonate shells or skeletons.
Acid-Base Equilibria, pH and Buffers
This document summarizes key concepts related to acid-base equilibria, pH, and buffers. It defines pH as the negative log of the hydronium ion concentration and explains that pure water has equal concentrations of H+ and OH- ions, maintaining a pH of 7. It describes strong acids and bases that fully dissociate in water and weak acids and bases that partially dissociate. The Henderson-Hasselbalch equation is introduced to relate pH to the acid dissociation constant (pKa) and relative concentrations of the acid and conjugate base forms. Common biological buffers like phosphate and carbonate are discussed. Examples demonstrate calculating pH and amounts of buffer components needed.
Acid-Base-Equilibria.ppt
This document discusses acid-base equilibria and calculating pH. It defines acids and bases according to several theories including:
1. Arrhenius theory which defines acids as substances that donate protons in water and bases as those that donate hydroxide ions.
2. Bronsted-Lowry theory which defines acids as proton donors and bases as proton acceptors in any solvent.
It then discusses calculating the pH of strong acids and bases which fully dissociate, as well as weak acids and bases which partially dissociate using their equilibrium constants. Examples are provided for calculating the pH of solutions of strong and weak acids.
AP Chemistry Chapter 16 Outline
This document provides an overview of acids and bases including:
- Definitions of acids and bases according to Arrhenius, Brønsted-Lowry, and Lewis theories
- How acids and bases react in water, forming conjugates
- Factors that influence acid and base strength such as polarity, resonance, and electronegativity
- Calculations involving acid and base dissociation constants (Ka and Kb) to determine pH
Y13 acids & bases lta 2017
The document provides information about acids and bases, including:
1) It defines acids as proton donors and bases as proton acceptors. It lists the formulas and dissociation equations of common acids like sulfuric acid, nitric acid, and ethanoic acid as well as bases like potassium hydroxide and calcium hydroxide.
2) It defines terms like acid, base, alkali and explains that alkalis are soluble bases that release hydroxide ions in water.
3) It discusses acid-base reactions and neutralization reactions where acids and bases react to form water and a salt. It also introduces the concept of conjugate acid-base pairs.
IB Chemistry on Acid Base Dissociation Constant and Ionic Product Water
1. Strong acids like HCl dissociate completely in water, generating a high concentration of hydrogen ions (H+), while weak acids like acetic acid (CH3COOH) only partially dissociate, resulting in a lower H+ concentration.
2. The pH scale is a logarithmic measure of hydrogen ion concentration, with lower pH values indicating higher acidity. A change of one pH unit represents a ten-fold change in H+ concentration.
3. The ionic product constant of water (Kw) describes the equilibrium between water and its ions (H+ and OH-). Kw is temperature dependent and increases with rising temperature, resulting in higher concentrations of H+ and OH- ions
Lect w9 buffers_exercises
This document discusses several concepts related to buffers, including:
1) Calculating the pH of an acetate buffer with given concentrations. The pH is calculated to be 4.67.
2) Choosing an appropriate buffer to achieve a target pH of 4.30 from given options based on their pKa values. Acetate is chosen.
3) Calculating the acid concentration needed for a 0.100 M base concentration to achieve the target pH. The acid concentration is calculated to be 0.28 M.
Lect w7 152_abbrev_ intro to acids and bases_alg
This document provides an overview of acids and bases, including:
- Water can act as both an acid and a base in chemical reactions.
- The autoionization of water establishes an equilibrium expression relating [H3O+] and [OH-].
- Adding acids or bases shifts the equilibrium by changing [H3O+] or [OH-] while maintaining the same Kw expression.
- pH is a measure of acidity and is defined as -log[H3O+], with lower pH indicating higher acidity.
Similar to 5. A water sample with a total alkalinity of 2.00 x 10 molesL has .pdf (20)
Csir chemistry acid base equilibrium question paper
Csir chemistry acid base equilibrium question paper
IB Chemistry on Acid Base Dissociation Constant and Ionic Product Water
IB Chemistry on Acid Base Dissociation Constant and Ionic Product Water
IB Chemistry on Acid Base Dissociation Constant and Ionic Product Water
IB Chemistry on Acid Base Dissociation Constant and Ionic Product Water
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help with 13. please Where are the photosynthetic pigments in Green sulfur bacteria? A.
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Correct answer: A) PSI
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How important is UNIX® to the Internet Explain why and support your.pdf
How important is UNIX® to the Internet? Explain why and support your position using
examples.
Solution
Ans. Importance of UNIX to internet:
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platform. These applications have static and dynamic content and UNIX OS does that very well.
Many ofthese applications can ne built to run on Windows too but it has a virus issue. Windows
can cause many viruses whereas there is no virus when it come to UNIX OS.
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give an example of a strength and weakness of the accounting rate of.pdf
give an example of a strength and weakness of the accounting rate of return approach
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weakness : It ignores the time value of money or discounted cash flows , salvage value and life
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investment has.
Strenght : Accounting rate of return is based on accounting profits rather than the cash flows.
Calculating accounting profit is more simplier than calculating cash flow.
Find an example infectious disease for each of the term(s) or concept.pdf
Find an example infectious disease for each of the term(s) or concept(s) below. Give the name
of the disease and its causal agent and whether it is viral (v) bacterial (B) fungal (F),
protozoan(P) or helminthic(H). All of the diseases must be infectious diseases. Concerning
epidemics - give an example of a disease that has a common source. Concerning epidemics -
give an example of a disease that has a propagated source. Give an example of a notifiable viral
infectious disease. Give an example of a disease with a seasonal occurrence. Why is it seasonal?
Solution
Answer:
12. Concerning epidemics – give an example of a disease that has a common source
Answer: In common source epidemic breakouts, the duration of exposure is brief and it is caused
when a group of persons are all exposed to a toxic agent which has a common source.
Example of common source infectious disease is botulism which is caused by a toxin
(botulinum) produced by Clostridium botulinum bacteria. Common source in botulism could
include infected homemade, preserved or fermented food.
13. Concerning epidemics – give an example of a disease that has a propagated source
Answer: Propagated epidemic outbreak occurs by transmission of disease from one person to
another. Example of a propagated source epidemic breakout is Measles which is a highly
contagious infectious disease caused by the measles virus.
14. Give an example of a notifiable viral infectious disease
Answer: A notifiable viral infectious disease is the one that is required to be reported to
government authorities as per the prevailing law. Example Anthrax which is caused by bacterium
Bacillus anthracis
15. Give an example of a disease with a seasonal occurrence. Why is it seasonal?
Answer: In case of seasonal diseases there is a periodic surge in the incidence rate of disease in a
particular season. Example: Influenza (caused by Influenza virus) outbreaks occur seasonally
with peak prevalence in winter which can be attributed to longer survival times and higher
aerosol transmission of the influenza virus in cold temperature conditions..
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Evaluate the following expression. Your answer must be in exact form: for example, type pi/6
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ANS: As sin has a period of 2pi so bringing -pi/2 to the principal period of (0,2pi) we add 2pi to
it.
So, -pi/2 + 2pi = 3pi/2
sin(3pi/2) = -1 So the question is
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In acidic condition, the NH2 group will acquire a proton(H+) to form NH3+ whereas the COOH
group remains unchanged.
In alkaline condition ( in sodium hydroxide), the COOH group becomes COO- Na+ whereas the
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This applies to all amino acids..
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Describe and/or draw the lymphatic system from capillariesto the main lymphatic ducts; include
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Solution
Lymphatic system:
Explain what chyle is, whereit comes from and why it can only collect in the leftchest, not right,
after chest trauma.
Lymph from the intestinal trunk, referred to as chyle, drains into the lower end of the thoracic
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Solution
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Ans 2 : Zero lone pairs around the sulphur.
Ans 3 : 120 o.
Ans 4: about the same..
What are this companys dividends per share for 2017Income State.pdf
What are this company\'s dividends per share for 2017?
Income Statement ($000s) Balance Sheet ($000s)
2017 2016 2017
2016
Revenues $ 200 $175 Cash $ 10 $150
Cost of Goods Sold 110 100 Accounts Receivable 30
40
Operating Expenses 30 28 Inventory 20 40
Interest Expense 20 12 Plant, Property, Equipment 180 200
Net Income 40 35 Total Assets $ 240
$430
Dividends 20 20 Accounts Payable $ 15 $ 25
Bank Debt Due in 6 Months 15 50
Long term Debt 80 245
Common Stock 60 60
Retained Earnings 70 50
Total Liabilities & Equity $ 240
$430
The company has 1,000,000 shares of common stock authorized, 500,000 shares issued, and
200,000 outstanding as of both 12/31/2017 and 12/31/2016.$1.00
Solution
The company\'s dividends per share for 2017 is $0.10 which is calculated as below:-
Dividend per share = (Common Dividends / Common Shares Outstanding)
= (20,000 / 200,000) = $0.10.
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Why won\'t my code run? I want to inherit everything from sailb.h class (base) into raceb.h class
(derived) and in main I want to set a raceb member variable equal to one of sailb member
variables but it does not work. language is c++
////////////////////////////////////Base Class////////////////////////////////////////
#ifndef sailb_h
#define sailb_h
#include
using namespace std;
class sailb {
public:
sailb();
double setWindSpeed(); //modifier
double getWindSpeed(); //accessor
private:
double windSpeed;
};
#endif
////////////////////////////////derived class/////////////////////////////////////////////////////////////////
#ifndef raceb_h
#define raceb_h
#include \"sailb.h\"
class raceb: public sailb {
public:
raceb();
void setDownWind();
double getDownWind();
p rivate:
double downWindSpeed;
};
#endif
///////////////main.cpp/////////////////////////////////////////////////////////////////////////////////////
#include
#include
#include \"sailb.h\"
#include \"raceb.h\"
using namespace std;
sailb::sailb() {windSpeed = 0;}
raceb::raceb() {}
void sailb::setWindSpeed() {
cout << \"What is the speed of the wind in knots.\ \";
cin >> windSpeed;
}
double sailb::getWindSpeed() {
return windSpeed;
}
void raceb::setDownWind() {
downWindSpeed = getWindSpeed();
}
double raceb::getDownWind() {
return downWindSpeed;
}
int main() {
sailb s;
s.setWindSpeed();
raceb r;
r.setDownWind();
cout << r.getDownWind();
///////// Output = 0. So the windSpeed is being set to the default windspeed, but i want it to be set
to the speed that the user inputs.
Solution
You are creating two different objects. Both of the objects share different memory locations. To
make it work what you are trying to achieve just use one object of derived class. Main function
will look like:
int main() {
raceb r;
r.setWindSpeed();
r.setDownWind();
cout << r.getDownWind();
return 0;
}
-----------
One more error I saw is you have defined the prototype of \"setWindSpeed();\" as \"double\".
Make it void. For example:
class sailb {
public:
sailb();
void setWindSpeed(); / <------------------ it was double in your code
double getWindSpeed(); //accessor
private:
double windSpeed;
};.
Which statement is trueA.The main goal of work teams is to share .pdf
Which statement is true?
A.The main goal of work teams is to share information.
B.The main goal of work groups is collective performance.
C.The main goal of work groups is synergy.
D.The main goal of work teams is collective performance.
Solution
Correct answer is option (D)
Work teams aim at the goal ofcollective performance, use complementary skill and work with
accountability..
When developing a new software we should take into account how to cr.pdf
When developing a new software we should take into account how to create a specific \"Look
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Solution
Advantages of Java GUI:
1. It makes the navigation through the software very simple as compared to text based I/O.
2. Users dont have to remember the commands since interactive buttons and components are
available for input.
3. Allows for increased usage of the software by users because of the graphical interface.
4. Java provides most of the input components through Awt which can be used for varied
purposes.
5. Easy and neat alignment of components on the screen.
6. GUIs also offer efficient interaction with human-interface devices such as keyboards, mice
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What impact did Pythagoras have on EuclidSolutionPythagorasP.pdf
What impact did Pythagoras have on Euclid?
Solution
Pythagoras
Probably the most famous name during the development of Greek geometry is Pythagoras, even
if only for the famous law concerning right angled triangles. This mathematician lived in a secret
society which took on a semi-religious mission. From this, the Pythagoreans developed a number
of ideas and began to develop trigonometry. The Pythagoreans added a few new axioms to the
store of geometrical knowledge.
1)The sum of the internal angles of a triangle equals two right angles 180*.
2)The sum of the external angles of a triangle equals four right angles 360*
3)The sum of the interior angles of any polygon equals 2n-4 right angles, where n is the number
of sides.
4)The sum of the exterior angles of a polygon equals four right angles, however many sides.
5)The three polygons, the triangle, hexagon, and square completely fill the space around a point
on a plane - six triangles, four squares and three hexagons. In other words, you can tile an area
with these three shapes, without leaving gaps or having overlaps.
6)For a right angled triangle, the square of the hypotenuse is equal to the sum of the squares of
the other two sides.
Most of these rules are instantly familiar to most students, as basic principles of geometry and
trigonometry. One of his pupils, Hippocrates, took the development of geometry further. He was
the first to start using geometrical techniques in other areas of maths, such as solving quadratic
equations, and he even began to study the process of integration. He solved the problem of
Squaring a Lune and showed that the ratio of the areas of two circles equalled the ratio between
the squares of the radii of the circles.
Euclid
Alongside Pythagoras, Euclid is a very famous name in the history of Greek geometry. He
gathered the work of all of the earlier mathematicians and created his landmark work, \'The
Elements,\' surely one of the most published books of all time. In this work, Euclid set out the
approach for geometry and pure mathematics generally, proposing that all mathematical
statements should be proved through reasoning and that no empirical measurements were
needed. This idea of proof still dominates pure mathematics in the modern world.
The reason that Euclid was so influential is that his work is more than just an explanation of
geometry or even of mathematics. The way in which he used logic and demanded proof for every
theorem shaped the ideas of western philosophers right up until the present day. Great
philosopher mathematicians such as Descartes and Newton presented their philosophical works
using Euclid\'s structure and format, moving from simple first principles to complicated
concepts. Abraham Lincoln was a fan, and the US Declaration of Independence used Euclid\'s
axiomatic system.
Apart from the Elements, Euclid also wrote works about astronomy, mirrors, optics, perspective
and music theory, although many of his works are lost to posterity. Certainl.
Tic Tac Toe game with GUI please dont copy and paste from google. .pdf
Tic Tac Toe game with GUI please don\'t copy and paste from google. I really need the help.
Solution
Answer:
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class TicTacToe extends JPanel
{
JButton buttons[] = new JButton[9];
int alternate = 0;//if this number is a even, then put a X. If it\'s odd, then put an O
public TicTacToe()
{
setLayout(new GridLayout(3,3));
initializebuttons();
}
public void initializebuttons()
{
for(int i = 0; i <= 8; i++)
{
buttons[i] = new JButton();
buttons[i].setText(\"\");
buttons[i].addActionListener(new buttonListener());
add(buttons[i]); //adds this button to JPanel (note: no need for JPanel.add(...)
//because this whole class is a JPanel already
}
}
public void resetButtons()
{
for(int i = 0; i <= 8; i++)
{
buttons[i].setText(\"\");
}
}
// when a button is clicked, it generates an ActionEvent. Thus, each button needs an
ActionListener. When it is clicked, it goes to this listener class that I have created and goes to the
actionPerformed method. There (and in this class), we decide what we want to do.
private class buttonListener implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
JButton buttonClicked = (JButton)e.getSource(); //get the particular button that was clicked
if(alternate%2 == 0)
buttonClicked.setText(\"X\");
else
buttonClicked.setText(\"O\");
if(checkForWin() == true)
{
JOptionPane.showConfirmDialog(null, \"Game Over.\");
resetButtons();
}
alternate++;
}
public boolean checkForWin()
{
/** Reference: the button array is arranged like this as the board
* 0 | 1 | 2
* 3 | 4 | 5
* 6 | 7 | 8
*/
//horizontal win check
if( checkAdjacent(0,1) && checkAdjacent(1,2) ) //no need to put \" == true\" because the
default check is for true
return true;
else if( checkAdjacent(3,4) && checkAdjacent(4,5) )
return true;
else if ( checkAdjacent(6,7) && checkAdjacent(7,8))
return true;
//vertical win check
else if ( checkAdjacent(0,3) && checkAdjacent(3,6))
return true;
else if ( checkAdjacent(1,4) && checkAdjacent(4,7))
return true;
else if ( checkAdjacent(2,5) && checkAdjacent(5,8))
return true;
//diagonal win check
else if ( checkAdjacent(0,4) && checkAdjacent(4,8))
return true;
else if ( checkAdjacent(2,4) && checkAdjacent(4,6))
return true;
else
return false;
}
public boolean checkAdjacent(int a, int b)
{
if ( buttons[a].getText().equals(buttons[b].getText()) && !buttons[a].getText().equals(\"\") )
return true;
else
return false;
}
}
public static void main(String[] args)
{
JFrame window = new JFrame(\"Tic-Tac-Toe\");
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.getContentPane().add(new TicTacToe());
window.setBounds(300,200,300,300);
window.setVisible(true);
}
}.
This is a U.S History questionThe 911 hijackers used fully-loade.pdf
This is a U.S History question:
The 9/11 hijackers used fully-loaded airliners as weapons of war. Analyze the impact of 9/11 and
terrorism on aviation in America. What have been the social, political, and economic effects of
terrorism on commercial air travel and general aviation?
Solution
Air Space Closed: On September 10, 2001, US airports handled 38,047 flights. On September
12, they handled 252 commercial flights. One week later (September 18) there were 34,743
flights.1
• Passenger Traffic: US passenger traffic, measured by revenue passenger kilometers (number of
travelers multiplied by the distance traveled) declined 5.9% in 20012 (compared to 2000) and a
further 1.4% in 2002. Airlines struggled to match this decline by cutting capacity (available seat
kilometers or number of seats multiplied by distance traveled) by 2.8% in 2001 and a further
3.9% in 2002. This was the first time since World War II that industry capacity declined for two
consecutive years. After stabilizing in 2003, capacity growth resumed in 2004 and continued
until 2008, when it declined again owing to soaring oil prices and the global financial crisis.
Capacity fell further in 2009, returning virtually to 2000 levels. Between 2000 and 2009, the US
commercial aircraft fleet shrank by around 700 units.
In addition to the casualties and physical destruction directly
caused by their attacks, terrorists seek to inflict wider psychological,
social, political, and economic damage upon the
societies they target.
Terrorists can hope to harm economies in various indirect
ways. These include:
Reducing consumers’ and firms’ expectations for the future
Forcing governments and the private sector to invest in
security measures, which reduce efficiency in vulnerable
industries (such as transportation and trade) and redirect
investment away from more productive economic uses
Altering behavior by inducing economic actors (consumers,
investors, businesses) to avoid areas of perceived
risk (either sectors, such as aviation or tourism, or geographic
areas affected by terrorism)
Triggering wider geopolitical conflict, which may cause
further economic disruptions
This paper examines the actual macroeconomic.
The PCAOB and SOX were created in 2002 and yet accounting frauds occ.pdf
The PCAOB and SOX were created in 2002 and yet accounting frauds occured, does that mean
that SOX and the PCAOB are a failure? Why or why not?
Solution
SOX- Sarbanes Oxley Act was made in 2002 to protect the investors from fraud after the Enron
scandal.
PCAOB- This is \"Public company accounting oversight board\", created by SOX to protect the
investors\' interest and also to analyze the audits of public companies. It is a not for profit
organization and its main motive is to minimize the risk and provide protection.
These laws were created for betterment and safety of people and companies but somehow and
somewhere, these acts failed because of the following reasons:.
The main purpose of welfare is to provide incomes O A. for people who.pdf
The main purpose of welfare is to provide incomes O A. for people who do not qualify for social
security or unemployment compensation O B. to the surviving spouses or children of retirees or
workers injured on the job O C. to unemployed workers O D. to retired or disabled workers
Click to select your answer APPLY Chapter 7 Chech port Problems and Muitiple Choice
APPLY Chapter 8 Checkpoint Problems and Multiple Choice Quiz
Solution
The main purpose of welfare is for people who do not qualify for social security or
unemployment compensation.
The following is the sample code for multithreading. Run it and expl.pdf
The following is the sample code for multithreading. Run it and explain how it works. Pick up
one of the programs that you generated so far (for any assignment, not limited to CPM4100), and
modify it into multithreaded version.
Solution
Example code for multithreading is
Multithreading is to provide simultaneous execution of two or more parts of a program to utilize
the CPU time is the main theam of Multithreading above program best example for
Multithreading..
A quantity of HI was sealed in a tube, heated to 425C, and held at t.pdf
A quantity of HI was sealed in a tube, heated to 425C, and held at this temperature until
equilibrium is reached. The concentration of HI in the tube at equilibrium was found to be
0.0706 moles/liter. Calculate the equilibrium concentration of H2 (and I2 ). For the reaction H2
(g) + I2 (g) 2HI(g), Kc = 54.6 at 425C.
I don\'t know how to work this without the initial [HI]. Please explain the answer.
Solution
Kc=[2HI]^2/[I2][H2]
BUT [I2]=[H2]
=>54.6=0.0706^2/[h2]^2
[H2]^2=9.128*10^-5
[H2]=[I2]=SQRT9.128*10^-5
=9.55*10^-3MOLES/LITRE.
a higher GDP means that the U.S. either produced more goods and serv.pdf
a higher GDP means that the U.S. either produced more goods and services, or
Solution
or
there is a higher income which will lead to rise in expenditure which implies that there is a rise in
the standard of living of the citizens and due to rise in income there will be a higher spending on
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