.9 Classify the following reactions by what atoms do. Note: There may be more than one classification per reaction.a) CaCO3(s) + 2 HNO3(aq) → Ca(NO3)2(aq) + H2O(1) + CO2(g)b) Cl2(g) + 2 NaBr(aq) → Br2(1) + 2 NaCI(aq)O A. none of theseO B. a) acid base, gas formationb) redoxO C. a) decompositionb) redoxO D. a) metathesis, decompositionb) displacementO E. a) metathesisb) displacementO F. a) decompositionb) combinationO G. a) displacement, decompositionb) metathesisO H. a) gas formationb) acid-baseMacBook Pro

1st reaction is a type of acid bas, gas forming reaction.. 2nd reaction is a type of redox…

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Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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A monoprotic weak acid, HA, dissociates in water according to the reaction HA(aq) = H+ (aq) + A¯(aq) The equilibrium concentrations of the reactants and products are [HA] = 0.220 M, [H+] = 3.00 × 10−4 M, and [A¯] = 3.00 × 10−4 M. Calculate the value of pKa for the acid HA. pKa =
What is the half-reactions and the Ecell to this equation: 2Ag (s)+H2S (g)+ 1⁄2O2 (g) →Ag2S+H2O (l)
Identify the acid on the left and its conjugate base on the right in the following equations:(a) HOCl + H2O ↔ H3O+ + OCl-(b) HONH2 + H2O ↔ HONH3+ + OH-(c) NH4+ + H2O ↔ NH3 + H3O+(d) 2HCO3-2 ↔ H2CO3 + CO3-2 (e) PO4-3 + H2PO4- ↔ 2HPO4-2
What is the net ionic equation for the following chemical reaction? Pb(NO3)2(aq) + 2 NaCl(aq) → 2 NaNO3(aq) + PbCl2(s) Pb2+(aq) + 2 NO3−(aq) + 2 Na+(aq) + 2 Cl−(aq) → 2 Na+(aq) + 2 NO3−(aq) + Pb2+(s) + 2 Cl−(s) Pb2+(aq) + 2 NO3−(aq) + 2 Na+(aq) + 2 Cl−(aq) → 2 Na+(aq) + 2 NO3−(aq) + PbCl2(s) Na+(aq) + NO3−(aq) → NaNO3(aq) Pb2+(aq) + 2 Cl−(aq) → PbCl2(s)
b) Determine which ionization state corresponds to aspartic acid (shown below) at pH 1, 7, and 10 by selecting the most suitable answer from the statements i-iv. The pK of the amine, carboxylic acid, and side chain of aspartic acid are 9.6, 1.88 and 3.65, respectively. ОН ÓH ÑH2 i) the amine is charged; the carboxylic acids are neutral. ii) the amine and carboxylic acids are all charged. iii) the amine is neutral, and the carboxylic acids are charged. iv) the amine and the carboxylic acids are all neutral. pH Statement (i, ii, iii, or iv) 1 7 10 %3D
A monoprotic weak acid, HA, dissociates in water according to the reaction HA(aq) = H*(aq) + A¯(aq) The equilibrium concentrations of the reactants and products are [HA] = 0.290 M, H+| = 3.00 × 10¬4 M, and [A-] = 3.00 x 10-4 M. Calculate the value of pKa for the acid HA. pKa
The reaction quotient is Q=1.6×10-26 Part B What pH is needed to produce this value of Q if the concentration and pressure values are [Br2]=2.50×10−4M , [Br−]=11.65M, [SO42−]=9.50M, and PSO2=3.50×10−5atm ? Express your answer numerically to two decimal places.
The Keq for the reaction of water with water is called Kw H2O + H2O ⇔ H3O+1 + OH-1 [H3O+1][OH-1] Kw = ––––––––––––– = [H3O+1][OH-1] = (1 x 10-7)2 = 1 x 10-14 [H2O]2
Consider the reaction A + 2B ----> C. If the molar mass of C is twice the molar mass of A, what mass of C is produced by the complete reaction of 10.0 g A?(a) 10.0 g(b) 30.0 g(c) 60.0 g
In the following reaction in aqueous solution, the acid reactant is and its conjugate base product is CH;COOH + NH3 CH;CO0 + NH,"
a) Draw reaction coordinate diagrams for binding of both compounds to the enzyme: Compound Ka (nM) Kon (M-g?) koff (s) 4.3 x 103 4.3 x 105 0.8 5.8 x 106 Y 0.4 1.0 x 105 b) Explain the important differences between both graphs.
For this reaction: 6CO2 + 6H2O → C6H12O6 + 6O2, the products have 2760 kJ/mole more free energy than the reactants. So, which of the following statements best describes the reaction? a The reaction is endergonic because it converts molecules with less free energy to those with more free energy. b The reaction is exergonic because it converts molecules with less free energy to those with more free energy. c The reaction is exergonic because it converts molecules with more free energy to those with less free energy d The reaction is endergonic because it converts molecules with more free energy to those with less free energy.

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