Calculate the pH of a solution prepared by mixing equal volumes of 0.18M methylamine (CH3NH2, Kb = 3.7
Pkb = -log3.7*10-7
= 3.37
POH = PKb +log[salt]
[Base]
= 3.37+ LOG(0.65/0.18
= 3.37+0.557 = 3.927
PH = 14- POH
= 14-3.92
= 10.07
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