0
11
Ona Wuckert
Wiki User
∙ 11y agoHCN + H20 <-> H3o+ + CN-
Ka = 6.2 x 10^-10
ka = [h3o+][CN-]/[HCN] = x^2/0.1m
x^2 + 6.2 x 10^-10x - 6.2 x 10^-11
x = 7.87 x 10^-6
pH = -log[x] = -log[7.87x 10^-6 = 5.1
Wiki User
∙ 12y ago- log(0.1 M)
= 1
14 - 1
= 13 pH
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Wiki User
∙ 9y agoIt is a weak base.So pH depends on Kb value.
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∙ 12y ago11
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∙ 12y ago1
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∙ 11y ago11
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∙ 13y ago11
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1
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