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Stels [109]
3 years ago
9

A solution at 25 degrees Celsius is 1.0 × 10–5 M H3O+. What is the concentration of OH– in this solution? 1.0 × 10–5 M OH– 1.0 ×

10–14 M OH– 1.0 × 105 M OH– 1.0 × 10–9 M OH–
Chemistry
1 answer:
Fittoniya [83]3 years ago
5 0

Answer:

1.0 x 10⁻⁹ M OH⁻.

Explanation:

∵ [H₃O⁺][OH⁻] = 10⁻¹⁴.

[H₃O⁺] = 1.0 x 10⁻⁵ M.

<em>∴ [OH⁻] = 10⁻¹⁴/[H₃O⁺] </em>= 10⁻¹⁴/(1.0 x 10⁻⁵ M) = <em>1.0 x 10⁻⁹ M.</em>

<em>So, the right choice is: 1.0 x 10⁻⁹ M OH⁻.</em>

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