25. At 25 C, all of the following ionic compounds produce a basic aqueous solution, except ____....
Question:
25. At 25 ºC, all of the following ionic compounds produce a basic aqueous solution, except ____.
a. NaF
b. Na3PO4
c. NaNO2
d. NaHSO4
e. NaCH3CO2
Answer: _____
26. What is the equilibrium constant for the following reaction,
HCO2H(aq) + CN–(aq) HCO2–(aq) + HCN(aq)
and does the reaction favor the formation of reactants or products? The acid dissociation constant, Ka, for HCO2H is 1.8 x 10–4 and the acid dissociation constant for HCN is 4.0 x 10–10.
a. K = 1.00. The reaction favors neither the formation of reactants nor products.
b. K = 2.2 x 10–6. The reaction favors the formation of products.
c. K = 2.2 x 10–6. The reaction favors the formation of reactants.
d. K = 4.5 x 105. The reaction favors the formation of products.
e. K = 4.5 x 105. The reaction favors the formation of reactants.
Expert Answer:
