Calculate the hydrogen ion concentration in a 3.4 x 10-3 M solution of KOH.

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asked Apr 10, 2022 161k views

3 votes

Calculate the hydrogen ion concentration in a 3.4 x 10-3 M
solution of KOH.

Chemistry
college

Ejez asked

by Ejez

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2 Answers

3 votes

Answer:

2.9 X 10^-12 M

Step-by-step explanation:

BigGinDaHouse answered Apr 12, 2022

by BigGinDaHouse

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5 votes

Step-by-step explanation:

$KOH→K {}^( + ) + OH {}^( - ) \\ [OH {}^( - ) ] = 3.4 * {10}^( - 3) \\ k _(w) = [OH {}^( - ) ] [H {}^( + ) ] \\ 1 * {10}^( - 14) = 3.4 * {10}^( - 3) * [H {}^( + ) ] \\ [H {}^( + ) ] = 2.94 * {10}^( - 12) \: M$

Ahmed Blue answered Apr 16, 2022

by Ahmed Blue

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