Write the expression c. Which is the weaker acid? 11.116 For each of the followi
ID: 516402 • Letter: W
Question
Write the expression c. Which is the weaker acid? 11.116 For each of the following: (11.2. 11.3) 2. HC2H3O2 1. HCO, a. Write the formula for the conjugate base. b. Write the Ka expression. c. Which is the stronger acid? 11.117 Using Table 11.3, identify the conjugate acid-base pairs in each of the following equations and whether the equilibrium mixture contains mostly products or mostly reactants: (11.2, 11.3) a. NH, (aq) HNO, (aq) RNH4 (aq) NO, (aq) 11.118 Using Table 11.3, identify the conjugate acid-base pairs in each of the following equations and whether the equilibrium mixture contains mostly products or mostly reactants: (11.2, 11.3) a. HNO2 (aq) HS (aq) H2S (g) NO2 (aq) b. Ci (aa) H20 OH (aq) HCI(aq) 11.119 Complete and balance each of the following: (11.7) a. ZnCO3 (s) H2SO4 (aq) b. Al(s) HNO3 (aq) 11.120 Complete and balance each of the following: (11.7) a. H3P0, (aa) Ca (OH)2 (s) b. KHCO3 (s) HNO3 (aq) 11.121 Determine each of the following for a 0.050 M KoH solution 11.7, 11.8) a. H2O b. pH c. the balanced equation for the reaction with H2SO4 d. milliliters of KoH solution required to neutralize 40.0 m of a 0.035 M H2SO4 solution 11.122 Determine each of the following for a 0.10 M HBr solution (11.6, 11.7, 11.8)
Explanation / Answer
Question 11.119
The following reactions
a)
Note that carbonate and H2 will form, H2O and CO2; so
ZnCO3(s) + H2SO4(q) = ZnSO4(aq) + H2O(l) + CO2(g)
b)
Al(s) + HNO3(aq) -->
typically, strong acids will dissolve metals to form H2 and the ionic metal in solution
so
Al(s) + 3HNO3(aq) --> 3/2H2(g) + 3NO3-(aq)
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