1A. Determine the pH of a KOH solution made by mixing 0.251 g
KOH (s) with enough water to make 1.00 × 102 mL of solution. Assume
100% purity for the KOH (s).
1B. Predict the direction in which the equilibrium will lie for
the following reaction: H3PO4(aq) +
HSO4−(aq) H2PO4−(aq) + H2SO4(aq). Ka1(H3PO4) =
7.5 × 10−3;
Ka(H2SO4) = very large
2. For H3PO4, Ka1 = 7.3 × 10−3, Ka2 = 6.2 × 10−6, and Ka3 = 4.8...