Verified Answer :

lulu1991

Kw is a constant number under same temperature. So when [OH-] decrease from 10^-9 to 10^-1, the [H+] will increase. So the answer is a. increases.

sarajevo

Answer:

[H⁺] increases

Explanation:

Kw = [H⁺][OH⁻]

[OH⁻] = 10⁻⁹

Kw = 1 x 10⁻¹⁴

[H⁺] = Kw / [OH⁻] = 1 x 10⁻¹⁴ / 10⁻⁹= 10⁻⁵

[OH⁻] = 10⁻¹¹

Kw = 1 x 10⁻¹⁴

[H⁺] = Kw / [OH⁻] = 1 x 10⁻¹⁴ / 10⁻¹¹= 10⁻³

As the concentration of OH⁻decreases, the concentration of H⁺ increases.

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