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CHEM 230 TESTS COMPILATION BUNDLE

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CHEM 230 EXAM 1 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS.

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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...

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CHEM 230 Exam 2 Questions With Complete Solutions

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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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Chemistry 230 Exam 4| 55 Questions | With Complete Solutions

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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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Chem 230 Exam 3 Questions And Answers With Complete Solutions.

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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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Chem 230 Exam 4 Questions With Complete Solutions

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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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CHEM 230 Functional Groups Questions With Complete Solutions

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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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Organic Chemistry 230 Final Exam| 50 Questions| With Complete Solutions

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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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Qualitative Analysis Chem 230 Exam 2 KSU Questions With Complete Solutions

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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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Chemistry 230 lab exam 2 questions with complete solutions.

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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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Chem 230 Lab Exam 1| 72 Questions| With Complete Solutions

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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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KSU CHEM 230 Lab Exam 1 Questions With Complete Solutions

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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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Chem 230 Exam 4 GVSU| 220 Questions | With Complete Solutions

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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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GVSU CHEM 230 (Organic and Biochemistry) Questions With Complete Solutions

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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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Chem 230 Final Review | 88 Questions | With Complete Solutions

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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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Chem 230 Smith Final Exam KSU Questions With Complete Solutions

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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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CHEM 230 LAB EXAM 2 QUESTIONS WITH COMPLETE SOLUTIONS

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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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CHEM 230 Final Exam Questions With Complete Solution

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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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Chem 230 final (past questions) with complete solutions

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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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CHEM 230 Final| 339 Questions| With Complete Solutions

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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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CHE 230 EXAM 3 Questions With Complete Solutions

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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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CHE 230 Exam 1| 110 Questions | With Complete Solutions

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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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CHE 230 Exam 3 Dr. Owen UKY Questions With Complete Solutions

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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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CHE 230 Final Questions With Complete Solutions.

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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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CHEM 230 EXAM 1| 72 QUESTIONS | WITH COMPLETE SOLUTIONS

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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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CHEM 230 FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS

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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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Chem 230 Final Exam| 187 Questions| With Complete Solutions

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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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Chem 230 EXAM 2 Questions And Answers With Complete Solutions

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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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Chem 230 Exam 2| 317 Questions| With Complete Solutions

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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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Chem 230 (KSU) Exam 1 Questions And Answers With Complete Solutions

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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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Chem 230 (Altamirano) Final exam Questions With Complete Solutions

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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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