1. Calculate the pH of:
A) 0.10 M ammonia (kb = 1.7 x 10 -5) .
B) 0.15 M ammonium iodide (ka = 1.8 x 10 -5) .
C) pure water
D) 0.15 M hydrogen fluoride (ka = 4.2 x 10 -5) .
E) 0.25 M hydrochloric acid.
F) 0.15 M calcium hydroxide.
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