1. What is the conjugate base of the formic acid HCO,H? 2. You have a 5.43 x 10 M solution of HNO, at 25 °C. Calculate the [OH] of this solution? 3. A solution that has a pH of 4.5 is (acidic, basic, neutral)? 4. A solution has a hydronium ion concentration of 3.2 x 10 M. Calculate the pOH. Given the following two equilibria: NICO3 (s) S Ni²+(aq) + CO3 (aq) HCO3 (aq) + H20(E) S CO3² (aq) + H3O*(aq) K1 = 6.6 x 10-9 K2 = 4.8 × 1011 calculate the equilibrium constant for the following reaction: NICO;(s) + H;O (aq) S Ni"(aq) + HCO; (aq) + H,0(t) K3 = ? 2. Heating ammonium hydrogen sulfide leads to decomposition. heat + NH,HS(s) NH3(g) + H,S(g) Predict the effect on the equilibrium of raising the temperature (no change, shift right, shift left). 3. You have two reactions: A - B 20C C5 A +%B

1. What is the conjugate base of the formic acid HCO,H? 2. You have a 5.43 x 10 M solution of HNO, at 25 °C. Calculate the [OH] of this solution? 3. A solution that has a pH of 4.5 is (acidic, basic, neutral)? 4. A solution has a hydronium ion concentration of 3.2 x 10 M. Calculate the pOH. Given the following two equilibria: NICO3 (s) S Ni²+(aq) + CO3 (aq) HCO3 (aq) + H20(E) S CO3² (aq) + H3O*(aq) K1 = 6.6 x 10-9 K2 = 4.8 × 1011 calculate the equilibrium constant for the following reaction: NICO;(s) + H;O (aq) S Ni"(aq) + HCO; (aq) + H,0(t) K3 = ? 2. Heating ammonium hydrogen sulfide leads to decomposition. heat + NH,HS(s) NH3(g) + H,S(g) Predict the effect on the equilibrium of raising the temperature (no change, shift right, shift left). 3. You have two reactions: A - B 20C C5 A +%B

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section: Chapter Questions

Problem 109GQ: (a) What is the pH of a 0.105 M HCl solution? (b) What is the hydronium ion concentration in a...

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