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pochemuha
3 years ago
12

A solution of carbon dioxide in water has a hydronium ion concentration of 2.0 x 10^−6M. What is the concentration of hydroxide

ion at 25 °C?
Chemistry
1 answer:
kompoz [17]3 years ago
3 0

Answer:

[OH⁻] = 5x10⁻⁹ M

Explanation:

Kw = 1x10⁻¹⁴

[H₃O⁺] . [OH⁻] = Kw

2x10⁻⁶ . [OH⁻] = 1x10⁻¹⁴

[OH⁻] = 1x10⁻¹⁴ / 2x10⁻⁶ → 5x10⁻⁹

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