1) Calculate the OH- concentration at equilibrium in the following reaction: NH3 (aq) + H2O (l) -> NH4+ (aq) + OH- (aq) (Kb = 1.8 x10^(-5).
(a) 1 x10^(-14) M (b) 2.7 x10^(-3) M (c) 7.2 x10^(-6) M (d) None of the above
2) Which of the following pH values indicates the most basic solution?
(a) pH=12 (b) pH=4 (c) pH=8 (d) pH=9
3) Which of the following pH values indicate the most acidic solution? (
(a) pH=11 (b) pH=2 (c) pH=4 (d) pH=7
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