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CHEM 230 TESTS COMPILATION BUNDLE
CHEM 230 TESTS COMPILATION BUNDLE
[Montrer plus]CHEM 230 TESTS COMPILATION BUNDLE
[Montrer plus]Electronegativity 
A measure of the force of an atom's attraction for the electrons it shares in a chemical bond with another atom 
-increases from left to right 
-increases from bottom to top 
Covalent bond 
Forms when electron pairs are shared between two atoms whose difference in electronegativi...
Aperçu 2 sur 6 pages
Ajouter au panierElectronegativity 
A measure of the force of an atom's attraction for the electrons it shares in a chemical bond with another atom 
-increases from left to right 
-increases from bottom to top 
Covalent bond 
Forms when electron pairs are shared between two atoms whose difference in electronegativi...
What is the principal form of benzoic acid at pH 8.2 if the pKa value is 4.2 correct answer: So, at pH 4.20, there is a 1:1 mixture of benzoic acid (HA) 
and benzoate ion (A-). At pH = pKa + 1 (= 5.20), the quotient [A-]/[HA] is 10:1. At 
pKa + 2 (= 6.20), the quotient [A-]/[HA] is 100:1. As pH inc...
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Ajouter au panierWhat is the principal form of benzoic acid at pH 8.2 if the pKa value is 4.2 correct answer: So, at pH 4.20, there is a 1:1 mixture of benzoic acid (HA) 
and benzoate ion (A-). At pH = pKa + 1 (= 5.20), the quotient [A-]/[HA] is 10:1. At 
pKa + 2 (= 6.20), the quotient [A-]/[HA] is 100:1. As pH inc...
What is named first the cation or anion? correct answer: Cation 
 
How many Ligands are in [Cr(NH3)6](NO3)3 correct answer: 6 
 
How many Ligands are in K[Au(OH)4] correct answer: 4 
 
Oxidation number of the metal in K[Au(OH)4]? correct answer: +3 explanation: hydroxide has a charge of -1, sinc...
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Ajouter au panierWhat is named first the cation or anion? correct answer: Cation 
 
How many Ligands are in [Cr(NH3)6](NO3)3 correct answer: 6 
 
How many Ligands are in K[Au(OH)4] correct answer: 4 
 
Oxidation number of the metal in K[Au(OH)4]? correct answer: +3 explanation: hydroxide has a charge of -1, sinc...
Gases are more soluble in _______ water. correct answer: cold 
 
Is the gas to aqueous reaction endo or exothermic? correct answer: Exothermic 
 
What is lattice enthalpy? Its sign of dH? correct answer: The enthalpy change associated with going from solid to gas. It is always endothermic (+dH) 
...
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Ajouter au panierGases are more soluble in _______ water. correct answer: cold 
 
Is the gas to aqueous reaction endo or exothermic? correct answer: Exothermic 
 
What is lattice enthalpy? Its sign of dH? correct answer: The enthalpy change associated with going from solid to gas. It is always endothermic (+dH) 
...
What is the symbol for a proton? 
P can also be replaced with an H 
 
What is the symbol for a neutron? 
 
What is the symbol for an electron? 
e can also be replaced with a β 
 
What is the symbol for a positron? 
e can also be replaced with a β 
 
What is the symbol for an α particle? 
He c...
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Ajouter au panierWhat is the symbol for a proton? 
P can also be replaced with an H 
 
What is the symbol for a neutron? 
 
What is the symbol for an electron? 
e can also be replaced with a β 
 
What is the symbol for a positron? 
e can also be replaced with a β 
 
What is the symbol for an α particle? 
He c...
Alkane 
RCH3 
Alkene (internal) 
 
Alkene (terminal) 
 
Nitrile 
RC≡N 
Ether 
R-O-R 
Epoxide 
 
Thiol 
RCH2-SH 
Sulfide 
R-S-R 
Disulfide 
R-S-S-R 
Sulfonium salt 
 
Quaternary ammonium salt 
 
Aniline 
 
Phenol 
 
Carboxylic acid 
 
Acyl chloride 
 
Acid anhydride 
 
Ester 
 
Thioester...
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Ajouter au panierAlkane 
RCH3 
Alkene (internal) 
 
Alkene (terminal) 
 
Nitrile 
RC≡N 
Ether 
R-O-R 
Epoxide 
 
Thiol 
RCH2-SH 
Sulfide 
R-S-R 
Disulfide 
R-S-S-R 
Sulfonium salt 
 
Quaternary ammonium salt 
 
Aniline 
 
Phenol 
 
Carboxylic acid 
 
Acyl chloride 
 
Acid anhydride 
 
Ester 
 
Thioester...
Which of the following covalent single bonds is the most polar? 
 A. C-H B. C-O C. C-C D. C-N correct answer: B: C-O 
 
Which of the following formulas would correspond to a cyclic alkane? A. C5H12 B. C6H14 C. C7H14 D. C8H18 correct answer: C: C7H14 
 
The compound CH3(CH2)4CH3is called: A. hexane...
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Ajouter au panierWhich of the following covalent single bonds is the most polar? 
 A. C-H B. C-O C. C-C D. C-N correct answer: B: C-O 
 
Which of the following formulas would correspond to a cyclic alkane? A. C5H12 B. C6H14 C. C7H14 D. C8H18 correct answer: C: C7H14 
 
The compound CH3(CH2)4CH3is called: A. hexane...
The solution is clear and colorless correct answer: Fe 3+, Cr 3+, and Ni 2+ is absent 
 
Step B. The solution was made basic and barium hydroxide was added. A white precipitate formed. correct answer: SO4 2- is present 
 
Step C. Silver nitrate was added the precipitate dissolves. correct answer: ...
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Ajouter au panierThe solution is clear and colorless correct answer: Fe 3+, Cr 3+, and Ni 2+ is absent 
 
Step B. The solution was made basic and barium hydroxide was added. A white precipitate formed. correct answer: SO4 2- is present 
 
Step C. Silver nitrate was added the precipitate dissolves. correct answer: ...
Anion 1st step 
separating SO4(^2-) from Cl- and NO3- correct answer: *add ammonia and Ba(OH)2 
*foms a white precipitate 
Ba(^2+) + SO4(^2-)-->BaSO4 (s) 
 
Anion 2nd step 
confirming SO4(^2-) correct answer: *make solution acidic with HNO3 
*precipitate stays to confirm SO4(^2-) 
BaSO4 (s) + ...
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Ajouter au panierAnion 1st step 
separating SO4(^2-) from Cl- and NO3- correct answer: *add ammonia and Ba(OH)2 
*foms a white precipitate 
Ba(^2+) + SO4(^2-)-->BaSO4 (s) 
 
Anion 2nd step 
confirming SO4(^2-) correct answer: *make solution acidic with HNO3 
*precipitate stays to confirm SO4(^2-) 
BaSO4 (s) + ...
What is the purpose of Lab 1: Kinetics correct answer: To examine the four factors that influence the reaction rate of a chemical reaction 
 
What conditions influence the rate of reaction of a chemical process? correct answer: 1. Concentration of reactants 
2. Temperature 
3. Presence of a cataly...
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Ajouter au panierWhat is the purpose of Lab 1: Kinetics correct answer: To examine the four factors that influence the reaction rate of a chemical reaction 
 
What conditions influence the rate of reaction of a chemical process? correct answer: 1. Concentration of reactants 
2. Temperature 
3. Presence of a cataly...
What four factors affect reaction rates? correct answer: -concentration of reactants 
-Temperature 
-Catalysts 
- Physical state of reactants 
 
relationship between reaction rate and activation energy correct answer: The higher the activation energy, the slower the reaction rate 
 
Effect of c...
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Ajouter au panierWhat four factors affect reaction rates? correct answer: -concentration of reactants 
-Temperature 
-Catalysts 
- Physical state of reactants 
 
relationship between reaction rate and activation energy correct answer: The higher the activation energy, the slower the reaction rate 
 
Effect of c...
Metabolism correct answer: Sum total of all chemical reactions in a living organism 
 
Metabolism is a source of ________ for the functioning of the human body correct answer: energy 
 
Metabolism needed for many of the cellular processes such as correct answer: protein synthesis, DNA replication...
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Ajouter au panierMetabolism correct answer: Sum total of all chemical reactions in a living organism 
 
Metabolism is a source of ________ for the functioning of the human body correct answer: energy 
 
Metabolism needed for many of the cellular processes such as correct answer: protein synthesis, DNA replication...
NH2 functional group correct answer: amino 
 
RNH2 correct answer: primary amine 
 
R2NH correct answer: secondary amine 
 
R3N correct answer: tertiary amine 
 
bronsted-lowry acid correct answer: proton donor 
 
bronsted-lowry base correct answer: proton accepter 
 
lewis base correct answer...
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Ajouter au panierNH2 functional group correct answer: amino 
 
RNH2 correct answer: primary amine 
 
R2NH correct answer: secondary amine 
 
R3N correct answer: tertiary amine 
 
bronsted-lowry acid correct answer: proton donor 
 
bronsted-lowry base correct answer: proton accepter 
 
lewis base correct answer...
True or False: The addition of water to an alkene is called a hydration reaction. correct answer: True 
 
True or False: The double bonds in naturally occurring fatty acids are typically cis correct answer: True 
 
What is the IUPAC name for the following compound? correct answer: 4,4-dimethyl-1-...
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Ajouter au panierTrue or False: The addition of water to an alkene is called a hydration reaction. correct answer: True 
 
True or False: The double bonds in naturally occurring fatty acids are typically cis correct answer: True 
 
What is the IUPAC name for the following compound? correct answer: 4,4-dimethyl-1-...
hydrocarbon correct answer: compound containing only hydrogen and carbon 
 
saturated hydrocarbons correct answer: contain only single bonds between the carbons 
 
unsaturated hydrobarbons correct answer: contain double or triple bonds between the carbons 
 
aromatic hydrocarbons correct answer: ...
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Ajouter au panierhydrocarbon correct answer: compound containing only hydrogen and carbon 
 
saturated hydrocarbons correct answer: contain only single bonds between the carbons 
 
unsaturated hydrobarbons correct answer: contain double or triple bonds between the carbons 
 
aromatic hydrocarbons correct answer: ...
A) Initial starting solution with brownish yellow correct answer: Fe^3+ 
 
A) Initial starting solution with greyish blue correct answer: Cr^3+ 
 
A) Initial starting solution with pale green correct answer: Ni^2+ 
 
B) So4^2- correct answer: confirmed when precipitate is formed and doesn't dis...
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Ajouter au panierA) Initial starting solution with brownish yellow correct answer: Fe^3+ 
 
A) Initial starting solution with greyish blue correct answer: Cr^3+ 
 
A) Initial starting solution with pale green correct answer: Ni^2+ 
 
B) So4^2- correct answer: confirmed when precipitate is formed and doesn't dis...
IR Spectra correct answer: -Absorption of radiation causes vibrational excitation of functional groups *making it easy to ID functional groups* 
 
*0-5000cm-1* 
 
H NMR Spectra correct answer: *0-12ppm* 
 
C NMR Spectra correct answer: *0-200ppm* 
 
Mass Spec correct answer: -Used to measure the...
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Ajouter au panierIR Spectra correct answer: -Absorption of radiation causes vibrational excitation of functional groups *making it easy to ID functional groups* 
 
*0-5000cm-1* 
 
H NMR Spectra correct answer: *0-12ppm* 
 
C NMR Spectra correct answer: *0-200ppm* 
 
Mass Spec correct answer: -Used to measure the...
ionic, dipole-dipole,london correct answer: the order of bonds strongest to weakest 
 
two substituents are on the same side of the double bond correct answer: which statement best describes cis stereochemistry in an alkene? 
 
on opposite sides of the double bond correct answer: substituents on ...
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Ajouter au panierionic, dipole-dipole,london correct answer: the order of bonds strongest to weakest 
 
two substituents are on the same side of the double bond correct answer: which statement best describes cis stereochemistry in an alkene? 
 
on opposite sides of the double bond correct answer: substituents on ...
Enzymes correct answer: Proteins that act as catalyst for biochemical reactions 
 
Are enzymes consumed in a reaction? correct answer: Not consumed during the reaction 
 
Majority of enzymes are correct answer: Globular proteins 
 
Enzyme activity is affected by correct answer: pH, Temperature, ...
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Ajouter au panierEnzymes correct answer: Proteins that act as catalyst for biochemical reactions 
 
Are enzymes consumed in a reaction? correct answer: Not consumed during the reaction 
 
Majority of enzymes are correct answer: Globular proteins 
 
Enzyme activity is affected by correct answer: pH, Temperature, ...
Is SN2 concerted or stepwise correct answer: Concerted 
 
Is SN1 concerted or stepwise correct answer: Stepwise 
 
When is there a change in configuration in an SN2 correct answer: When alpha position is a chiral center 
 
What type of substrate reacts most quickly for SN2 correct answer: Primar...
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Ajouter au panierIs SN2 concerted or stepwise correct answer: Concerted 
 
Is SN1 concerted or stepwise correct answer: Stepwise 
 
When is there a change in configuration in an SN2 correct answer: When alpha position is a chiral center 
 
What type of substrate reacts most quickly for SN2 correct answer: Primar...
Friederich Wohler correct answer: Father of organic chemistry 
Determined that biological molecules can be synthesized in lab 
 
Carbon correct answer: Very stable 
Wants 4 bonds 
Can bond with many things 
 
Organic Compounds correct answer: Contain carbon 
Atoms bound by covalent bonds 
Essenti...
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Ajouter au panierFriederich Wohler correct answer: Father of organic chemistry 
Determined that biological molecules can be synthesized in lab 
 
Carbon correct answer: Very stable 
Wants 4 bonds 
Can bond with many things 
 
Organic Compounds correct answer: Contain carbon 
Atoms bound by covalent bonds 
Essenti...
What is an electrophile? correct answer: compound or ion that are poor in electron density- LOVES AVAILABLE ELECTRONS 
 
Same as Lewis Acid 
 
What is a nucleophile? correct answer: is an ion or a compound that is capable of donating a pair of electrons-- THEY WOULD LOVE TO ATTACK A NUCLEUS 
 
 
T...
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Ajouter au panierWhat is an electrophile? correct answer: compound or ion that are poor in electron density- LOVES AVAILABLE ELECTRONS 
 
Same as Lewis Acid 
 
What is a nucleophile? correct answer: is an ion or a compound that is capable of donating a pair of electrons-- THEY WOULD LOVE TO ATTACK A NUCLEUS 
 
 
T...
strong base, weak nucleophile correct answer: NaH 
 
strong base, weak nucleophile correct answer: DBN 
 
strong base, weak nucleophile correct answer: DBU 
 
strong base, strong nucleophile correct answer: HO- 
 
strong base, strong nucleophile correct answer: MeO- 
 
strong base, strong nucle...
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Ajouter au panierstrong base, weak nucleophile correct answer: NaH 
 
strong base, weak nucleophile correct answer: DBN 
 
strong base, weak nucleophile correct answer: DBU 
 
strong base, strong nucleophile correct answer: HO- 
 
strong base, strong nucleophile correct answer: MeO- 
 
strong base, strong nucle...
Organic Chemistry correct answer: the study of the compounds of carbon 
 
Electronegativity correct answer: A measure of the force of an atom's attraction for the electrons it shares in a chemical bond with another atom 
-increases from left to right 
-increases from bottom to top 
 
Difference b...
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Ajouter au panierOrganic Chemistry correct answer: the study of the compounds of carbon 
 
Electronegativity correct answer: A measure of the force of an atom's attraction for the electrons it shares in a chemical bond with another atom 
-increases from left to right 
-increases from bottom to top 
 
Difference b...
Which family of organic molecules is a hydro carbon correct answer: aromatic 
 
Which two functional groups does NOT contain oxygen? correct answer: amine 
 
Which factor is most important in determining the chemistry of an organic molecule? correct answer: the functional groups 
 
Two or more co...
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Ajouter au panierWhich family of organic molecules is a hydro carbon correct answer: aromatic 
 
Which two functional groups does NOT contain oxygen? correct answer: amine 
 
Which factor is most important in determining the chemistry of an organic molecule? correct answer: the functional groups 
 
Two or more co...
Many of the properties of water can be accounted for by the fact that correct answer: it is polar 
 
Compounds exist as a result of correct answer: chemical reaction 
 
In general, chemical bonding brings together elements in the correct ratios so that all of the atoms involved (except H and He) f...
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Ajouter au panierMany of the properties of water can be accounted for by the fact that correct answer: it is polar 
 
Compounds exist as a result of correct answer: chemical reaction 
 
In general, chemical bonding brings together elements in the correct ratios so that all of the atoms involved (except H and He) f...
Which of the following categories of compounds can act as a hydrogen bond donor? correct answer: Alcohols 
 
Which of the following categories of compounds can act as a hydrogen bond acceptor? correct answer: Alcohols, Aldehydes, Ketones. 
 
Which of the following categories of compounds can hydro...
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Ajouter au panierWhich of the following categories of compounds can act as a hydrogen bond donor? correct answer: Alcohols 
 
Which of the following categories of compounds can act as a hydrogen bond acceptor? correct answer: Alcohols, Aldehydes, Ketones. 
 
Which of the following categories of compounds can hydro...
What is the third law of thermodynamics? correct answer: The entropy of a perfect crystal is zero. 
 
What is the second law of thermodynamics? correct answer: As a whole, the universe always tends towards increasing entropy. 
 
What is the relationship between number of microstates and entropy? c...
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Ajouter au panierWhat is the third law of thermodynamics? correct answer: The entropy of a perfect crystal is zero. 
 
What is the second law of thermodynamics? correct answer: As a whole, the universe always tends towards increasing entropy. 
 
What is the relationship between number of microstates and entropy? c...
True of False: Upon standing, the solute and solvent will NOT separate by gravity correct answer: True 
 
True of False: The solvent will always be liquid correct answer: False 
 
Definition of Molarity correct answer: moles of solute/volume of solution 
 
The name given for a solution that conta...
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Ajouter au panierTrue of False: Upon standing, the solute and solvent will NOT separate by gravity correct answer: True 
 
True of False: The solvent will always be liquid correct answer: False 
 
Definition of Molarity correct answer: moles of solute/volume of solution 
 
The name given for a solution that conta...
Give the ground state electron configuration for I correct answer: [Kr]5s^2, 4d^10, 5p^5 
 
Which of the following is a strong acid? 
A. CH3NH2 
B. CH3O- 
C. H2N- 
D. CH3OH 
E. CH3NH3+ correct answer: E. CH3NH3+ 
 
A molecule of acetonitrile CH3Ch2Ch contains ____ sigma bonds and ____ pi bonds co...
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Ajouter au panierGive the ground state electron configuration for I correct answer: [Kr]5s^2, 4d^10, 5p^5 
 
Which of the following is a strong acid? 
A. CH3NH2 
B. CH3O- 
C. H2N- 
D. CH3OH 
E. CH3NH3+ correct answer: E. CH3NH3+ 
 
A molecule of acetonitrile CH3Ch2Ch contains ____ sigma bonds and ____ pi bonds co...
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