Benzoic acid is an organic compound and insoluble.pdf
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Benzoic acid is an organic compound and insoluble in water. Mg(OH)2 is not soluble in cold water. However, NA2SO4 in very soluble in water. So adding cold water in the mixture first. the water phase containing NA2SO4 can be filtered out. The organic phase+ the insoluble solid was isolated out into another container, where 3M HCl is then added. This will convert Mg(OH)2 to soluble MgCl2 and water. adding more water to this mixture to extract. the organic phase is benzoic acid, the water phase contains MgCl2, which can be converted back to Mg(OH)2 by adding base. Solution Benzoic acid is an organic compound and insoluble in water. Mg(OH)2 is not soluble in cold water. However, NA2SO4 in very soluble in water. So adding cold water in the mixture first. the water phase containing NA2SO4 can be filtered out. The organic phase+ the insoluble solid was isolated out into another container, where 3M HCl is then added. This will convert Mg(OH)2 to soluble MgCl2 and water. adding more water to this mixture to extract. the organic phase is benzoic acid, the water phase contains MgCl2, which can be converted back to Mg(OH)2 by adding base..
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I need some help understanding chemical reaction in inorganic chemistr.docx
I need some help understanding chemical reaction in inorganic chemistry. All of the compounds below are reacting with an abundance of water, what is the expected chemical reaction? Please tell me what I am doing wrong:
MgCl 2 (s):
BaSO 4 :
Bariumsulphate is not soluble due to high lattice energi. However there is an equalibrium here, but I cant find it.
I would very much appreciate it if you were to tell me how to approach problems such as these.
MgCl2(s) + H20(I) ? Mg0 + HCI
Solution
MgCl 2 being an ionic compound gets dissolved into water and it breaks to the corresponding ions:
MgCl 2 + H 2 O = Mg +2 (H2O) + 2 Cl - (H2O)
CCl4 being a non polar covalent compound does not react with water.
SO3 reacts with water vigorously to produce H2SO4.
SO3 (g) + H2O (l) = H2SO4 (aq)
BaSO4 is insoluble in water and no reaction occurs with water.
.
The HCl protonates the benzoate ion present as th.pdf
The HCl protonates the benzoate ion present as the bromomagnesium salt and also
dissolves any basic magnesium salts and any unreacted magnesium metal that may be present.
Inorganic ions, such as Mg , Br , H3O , and Cl , remain in the aqueous layer. The ether layer is
removed from the aqueous layer, and the ether is then extracted with several portions of aqueous
NaOH solution. This converts the benzoic acid into its water-soluble sodium salt, which is now
contained in the basic aqueous layer. Several NaOH extractions are done to help ensure complete
removal of benzoic acid from the ether layer, and the other organic by-products. 2+ -
Solution
The HCl protonates the benzoate ion present as the bromomagnesium salt and also
dissolves any basic magnesium salts and any unreacted magnesium metal that may be present.
Inorganic ions, such as Mg , Br , H3O , and Cl , remain in the aqueous layer. The ether layer is
removed from the aqueous layer, and the ether is then extracted with several portions of aqueous
NaOH solution. This converts the benzoic acid into its water-soluble sodium salt, which is now
contained in the basic aqueous layer. Several NaOH extractions are done to help ensure complete
removal of benzoic acid from the ether layer, and the other organic by-products. 2+ -.
Recommended
I need some help understanding chemical reaction in inorganic chemistr.docx
I need some help understanding chemical reaction in inorganic chemistry. All of the compounds below are reacting with an abundance of water, what is the expected chemical reaction? Please tell me what I am doing wrong:
MgCl 2 (s):
BaSO 4 :
Bariumsulphate is not soluble due to high lattice energi. However there is an equalibrium here, but I cant find it.
I would very much appreciate it if you were to tell me how to approach problems such as these.
MgCl2(s) + H20(I) ? Mg0 + HCI
Solution
MgCl 2 being an ionic compound gets dissolved into water and it breaks to the corresponding ions:
MgCl 2 + H 2 O = Mg +2 (H2O) + 2 Cl - (H2O)
CCl4 being a non polar covalent compound does not react with water.
SO3 reacts with water vigorously to produce H2SO4.
SO3 (g) + H2O (l) = H2SO4 (aq)
BaSO4 is insoluble in water and no reaction occurs with water.
.
The HCl protonates the benzoate ion present as th.pdf
The HCl protonates the benzoate ion present as the bromomagnesium salt and also
dissolves any basic magnesium salts and any unreacted magnesium metal that may be present.
Inorganic ions, such as Mg , Br , H3O , and Cl , remain in the aqueous layer. The ether layer is
removed from the aqueous layer, and the ether is then extracted with several portions of aqueous
NaOH solution. This converts the benzoic acid into its water-soluble sodium salt, which is now
contained in the basic aqueous layer. Several NaOH extractions are done to help ensure complete
removal of benzoic acid from the ether layer, and the other organic by-products. 2+ -
Solution
The HCl protonates the benzoate ion present as the bromomagnesium salt and also
dissolves any basic magnesium salts and any unreacted magnesium metal that may be present.
Inorganic ions, such as Mg , Br , H3O , and Cl , remain in the aqueous layer. The ether layer is
removed from the aqueous layer, and the ether is then extracted with several portions of aqueous
NaOH solution. This converts the benzoic acid into its water-soluble sodium salt, which is now
contained in the basic aqueous layer. Several NaOH extractions are done to help ensure complete
removal of benzoic acid from the ether layer, and the other organic by-products. 2+ -.
Let us assume the conc of Ba(OH)2 is known to us .pdf
Let us assume the conc of Ba(OH)2 is known to us and initially we have known
amount of Ba(OH)2 in the flask which is completely dissociated in form of Ba2+ and OH- ions.
Now H2SO4 is added. H2SO4 dissociates to form H+ and SO42- ions. H+ and OH- ions form
water while Ba2+ and SO42- form insoluble BaSO4 when enough H2SO4 is added to consume
the Ba(OH)2 completely the conductance of the analyte which is being monitored continuosly
shows a sharp decrease and is at its lowest point. at this point H2SO4 addition is stopped and
titration ends. Now you know the molarity of Ba(OH)2 ...(M1) volume of Ba(OH)2 taken
initially ...(V1) and volume of H2SO4 consumed ...(V2) use M1V1 = M2V2 only unknown M2
which is molarity of H2SO4 can be calculated !!
Solution
Let us assume the conc of Ba(OH)2 is known to us and initially we have known
amount of Ba(OH)2 in the flask which is completely dissociated in form of Ba2+ and OH- ions.
Now H2SO4 is added. H2SO4 dissociates to form H+ and SO42- ions. H+ and OH- ions form
water while Ba2+ and SO42- form insoluble BaSO4 when enough H2SO4 is added to consume
the Ba(OH)2 completely the conductance of the analyte which is being monitored continuosly
shows a sharp decrease and is at its lowest point. at this point H2SO4 addition is stopped and
titration ends. Now you know the molarity of Ba(OH)2 ...(M1) volume of Ba(OH)2 taken
initially ...(V1) and volume of H2SO4 consumed ...(V2) use M1V1 = M2V2 only unknown M2
which is molarity of H2SO4 can be calculated !!.
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Vector is living organisms that can transmit infectious diseases bet.pdf
Vector is living organisms that can transmit infectious diseases between humans or from animals
to humans.Many of these vectors are bloodsucking insects which ingest disease producing
microrganisms during blood meal from an infected host either human or animal and later injected
it into a new host during their subsequent blood meal.
Mosquitoes are best known disease vector. Half of the world population is infected with the
Vector borne infectious disease, such as Malaria, Dengue fever, Yellow fever and plaque.
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Body painSub tropics and South EuropeSupportive Treatment and under observation
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Vector is living organisms that can transmit infectious diseases between humans or from animals
to humans.Many of these vectors are bloodsucking insects which ingest disease producing
microrganisms during blood meal from an infected host either human or animal and later injected
it into a new host during their subsequent blood meal.
Mosquitoes are best known disease vector. Half of the world population is infected with the
Vector borne infectious disease, such as Malaria, Dengue fever, Yellow fever and plaque.
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There is not adequate information. The reference to context is missi.pdf
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Solution
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Similar to Benzoic acid is an organic compound and insoluble.pdf
Let us assume the conc of Ba(OH)2 is known to us .pdf
Let us assume the conc of Ba(OH)2 is known to us and initially we have known
amount of Ba(OH)2 in the flask which is completely dissociated in form of Ba2+ and OH- ions.
Now H2SO4 is added. H2SO4 dissociates to form H+ and SO42- ions. H+ and OH- ions form
water while Ba2+ and SO42- form insoluble BaSO4 when enough H2SO4 is added to consume
the Ba(OH)2 completely the conductance of the analyte which is being monitored continuosly
shows a sharp decrease and is at its lowest point. at this point H2SO4 addition is stopped and
titration ends. Now you know the molarity of Ba(OH)2 ...(M1) volume of Ba(OH)2 taken
initially ...(V1) and volume of H2SO4 consumed ...(V2) use M1V1 = M2V2 only unknown M2
which is molarity of H2SO4 can be calculated !!
Solution
Let us assume the conc of Ba(OH)2 is known to us and initially we have known
amount of Ba(OH)2 in the flask which is completely dissociated in form of Ba2+ and OH- ions.
Now H2SO4 is added. H2SO4 dissociates to form H+ and SO42- ions. H+ and OH- ions form
water while Ba2+ and SO42- form insoluble BaSO4 when enough H2SO4 is added to consume
the Ba(OH)2 completely the conductance of the analyte which is being monitored continuosly
shows a sharp decrease and is at its lowest point. at this point H2SO4 addition is stopped and
titration ends. Now you know the molarity of Ba(OH)2 ...(M1) volume of Ba(OH)2 taken
initially ...(V1) and volume of H2SO4 consumed ...(V2) use M1V1 = M2V2 only unknown M2
which is molarity of H2SO4 can be calculated !!.
Hydrogen
Hydrogen, the most abundant element in the universe and the third most abundant on the surface of the globe.
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Water PPT From RKB Kashif Ali
Please save water and save life
Need clean water? Stop dumping garbage into the waters.
Make the waters turn blue, or you'll have brown water soon.
When not using, keep your tap shut.
Don't drain the water into the gutter.
Make a move and save the ocean.
Another name for life is water; conserve it.
Conservation of water is a necessity to save life. All living organisms on this planet need water to survive. If we do not give importance to saving or conservation of water then our future generations will face water scarcity. Save water, and it will save you.
Types of chemical reactions - Laboratory Activity
These are synthesis, decomposition, combustion, single replacement and double replacement.
Laboratory Report.
University of Makati, Philippines.
III- BSE General Science
#Biochemistry #GeneralChemistry
Solubility equilibria
Concept of solubility euilibria deals with the extent of solubility of different salts or compounds in water or other solvents and also tells about different factors which control the solubility of different salts.
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Let us assume the conc of Ba(OH)2 is known to us .pdf
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Solution
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s * 0.02 = 2.2*10^-16
s = 1.1*10^-14
Solution
s * 0.02 = 2.2*10^-16
s = 1.1*10^-14.
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the antigen with the cells. These cells contain specific cell surface receptors which are essentially
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System.out.println(\"first letters of ArrayList:\"+f(arrList));
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public static String f(ArrayList arrayList){
String s = \"\"; // empty string
for(int i=0;i
Solution
import java.util.*;
public class FirstChars {
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ArrayList arrList = new ArrayList();
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arrList.add(\"World\");
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Ionic bonds are when opposite charges are attracted to each other. Polar covalent bonds are when
one atom has a greater affinity for electrons than the other, thus the electrons will spent more
time around that atom. This is still sharing, but more like an atom is winning in tug of war with
the electrons. Non-polar covalent bonds are when atoms share the electrons equally.
O2 - no opposite charges, same affinity. Non-polar covalent bonds
CCl4 - C-Cl bonds are polar bonds because they do not have the same affinity as each other.
However, in this case, since 4 C-Cl bonds present (they make up a tetrahedral structure) all the
dipoles (what makes up affinity) cancel each other out resulting in the net dipole to be zero,
giving the compound non-polar covalent bonding.
NaCl - opposite charges. Na + and Cl - thus gives ionic bonding..
Human capital is the stock of knowledge, habits, social and personal.pdf
Human capital is the stock of knowledge, habits, social and personality attributes, including
creativity, embodied in the ability to perform labor so as to produce economic value.
Alternatively, Human capital is a collection of resources—all the knowledge, talents, skills,
abilities, experience, intelligence, training, judgment, and wisdom possessed individually and
collectively by individuals in a population. These resources are the total capacity of the people
that represents a form of wealth which can be directed to accomplish the goals of the nation or
state or a portion thereof.
It is an aggregate economic view of the human being acting within economies, which is an
attempt to capture the social, biological, cultural and psychological complexity as they interact in
explicit and/or economic transactions. Many theories explicitly connect investment in human
capital development to education, and the role of human capital in economic development,
productivity growth, and innovation has frequently been cited as a justification for government
subsidies for education and job skills training.
It was assumed in early economic theories, reflecting the context, i.e., the secondary sector of the
economy was producing much more than the tertiary sector was able to produce at the time in
most countries – to be a fungible resource, homogeneous, and easily interchangeable, and it was
referred to simply as workforce or labor, one of three factors of production (the others being
land, and assumed-interchangeable assets of money and physical equipment). Just as land
became recognized as natural capital and an asset in itself, human factors of production were
raised from this simple mechanistic analysis to human capital. In modern technical financial
analysis, the term \"balanced growth\" refers to the goal of equal growth of both aggregate
human capabilities and physical assets that produce goods and services.
The assumption that labour or workforces could be easily modelled in aggregate began to be
challenged in 1950s when the tertiary sector, which demanded creativity, begun to produce more
than the secondary sector was producing at the time in the most developed countries in the
world.
Today, most theories attempt to break down human capital into one or more components for
analysis usually called \"intangibles\". Most commonly, social capital, the sum of social bonds
and relationships, has come to be recognized, along with many synonyms such as goodwill or
brand value or social cohesion or social resilience and related concepts like celebrity or fame, as
distinct from the talent that an individual (such as an athlete has uniquely) has developed that
cannot be passed on to others regardless of effort, and those aspects that can be transferred or
taught: instructional capital. Less commonly, some analyses conflate good instructions for health
with health itself, or good knowledge management habits or systems with the instructions they
compile and manage, .
Gregor Mendel is called the father of genetics, because he introduce.pdf
Gregor Mendel is called the father of genetics, because he introduced various terms such as gene,
heredity, offspring, parental generation etc. The three primary sources that were important for
Mendelian genetics are
Cross pollination: Due to this the traits of different plants can be introduced in the offspring.
Plants differing in one character because of which if there was any change in the character of the
plant it was easily noticeable.
The dominant and recessive phenotypes which are responsible to determine which trait will be
shown by the plants.
These 3 are the primary sources of mendelian genetics.
Solution
Gregor Mendel is called the father of genetics, because he introduced various terms such as gene,
heredity, offspring, parental generation etc. The three primary sources that were important for
Mendelian genetics are
Cross pollination: Due to this the traits of different plants can be introduced in the offspring.
Plants differing in one character because of which if there was any change in the character of the
plant it was easily noticeable.
The dominant and recessive phenotypes which are responsible to determine which trait will be
shown by the plants.
These 3 are the primary sources of mendelian genetics..
Exercise 2.1 Explain the accompanying terms quickly trait, space, e.pdf
Exercise 2.1 Explain the accompanying terms quickly: trait, space, element, relationship,
element set, relationship set, one-to-numerous relationship, numerous to-numerous relationship,
interest limitation, cover requirement, covering imperative, feeble element set, total,
what\'s more, part marker.
Answer 2.1 No answer gave yet.
Exercise 2.2 A college database contains data about teachers (recognized
by government managed savings number, or SSN) and courses (recognized by courseid).
Teachers
show courses; each of the accompanying circumstances concerns the Teaches relationship set.
For every circumstance, draw an ER outline that portrays it (expecting that no further
limitations hold).
1. Educators can instruct the same course in a few semesters, and every offering must
be recorded.
2. Educators can instruct the same course in a few semesters, and just the most
late such offering should be recorded. (Accept this condition applies taking all things together
consequent inquiries.)
3. Each educator must show some course.
4. Each teacher instructs precisely one course (no all the more, no less).
5. Each teacher instructs precisely one course (no all the more, no less), and each course
must be educated by some educator.
6. Presently assume that specific courses can be instructed by a group of teachers together,
in any case, it is conceivable that nobody teacher in a group can educate the course. Model this
circumstance, presenting extra element sets and relationship sets if important.
Answer 2.2 Answer overlooked.
5
6 Chapter 2
Exercise 2.3 Consider the accompanying data around a college database:
Educators have a SSN, a name, an age, a rank, and an examination claim to fame.
Ventures have a task number, a supporter name (e.g., NSF), a beginning date, an
finishing date, and a financial plan.
Graduate understudies have a SSN, a name, an age, and a degree program (e.g., M.S.
on the other hand Ph.D.).
Every task is overseen by one educator (known as the venture\'s important specialist).
Every venture is dealt with by one or more educators (known as the undertaking\'s
co-agents).
Teachers can oversee and/or chip away at different activities.
Every task is chipped away at by one or more graduate understudies (known as the
task\'s exploration collaborators).
At the point when graduate understudies chip away at a venture, an educator must manage their
work
on the task. Graduate understudies can deal with different tasks, in which case
they will have a (possibly diverse) chief for every one.
Offices have a division number, an office name, and a principle office.
Offices have an educator (known as the executive) who runs the division.
Teachers work in one or more divisions, and for every office that they
work in, a period rate is connected with their occupation.
Graduate understudies have one noteworthy division in which they are chipping away at their
degree.
Every graduate understudy has another, more senior graduate understudy (known as a
understudy co.
Dichlorine hexoxide(Cl2 O6) is the chemical compound with the formul.pdf
Dichlorine hexoxide(Cl2 O6) is the chemical compound with the formula Cl2O6. This chlorine
oxide is the mixed anhydride of chloric and perchloric acids. It is produced by reaction between
chlorine dioxide and excess ozone:
2 ClO2 + 2 O3 2 ClO3 + 2 O2 Cl2O6 + 2 O2
Solution
Dichlorine hexoxide(Cl2 O6) is the chemical compound with the formula Cl2O6. This chlorine
oxide is the mixed anhydride of chloric and perchloric acids. It is produced by reaction between
chlorine dioxide and excess ozone:
2 ClO2 + 2 O3 2 ClO3 + 2 O2 Cl2O6 + 2 O2.
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- 1. Benzoic acid is an organic compound and insoluble in water. Mg(OH)2 is not soluble in cold water. However, NA2SO4 in very soluble in water. So adding cold water in the mixture first. the water phase containing NA2SO4 can be filtered out. The organic phase+ the insoluble solid was isolated out into another container, where 3M HCl is then added. This will convert Mg(OH)2 to soluble MgCl2 and water. adding more water to this mixture to extract. the organic phase is benzoic acid, the water phase contains MgCl2, which can be converted back to Mg(OH)2 by adding base. Solution Benzoic acid is an organic compound and insoluble in water. Mg(OH)2 is not soluble in cold water. However, NA2SO4 in very soluble in water. So adding cold water in the mixture first. the water phase containing NA2SO4 can be filtered out. The organic phase+ the insoluble solid was isolated out into another container, where 3M HCl is then added. This will convert Mg(OH)2 to soluble MgCl2 and water. adding more water to this mixture to extract. the organic phase is benzoic acid, the water phase contains MgCl2, which can be converted back to Mg(OH)2 by adding base.