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Asked Nov 21, 2019
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A certain weak base has a Kb of 7.80 × 10-7. What concentration of this base will produce a pH of 10.38?

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To find [B, apply the equation [ВН 1]ОН ] B Кь Now consider solving for the [OH from the given pH. That is, рH — 14 — рОН — 14 + 1og([ОН 1). Then, [ОН ]— 10РH 14 OH 101038-14 OH 2.40x 104

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