What is the concentration of [OH-] in a 0.20 M ammonia solution? (Kb value for ammonia =1.8 *10-5)
A) 3.6 * 10-6 M
B) 1.8 *10-5 M
C) 0.20 M
D) 1.9 *10-3 M
E) 4.2 *10-4 M
Correct Answer:
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