The OH^- concentration in a 7.5 × 10^-3 M Ca(OH)₂ solution is A)7.5 × 10^-3 M. B)1.5 × 10^-2 M. C)1.3 × 10^-12 M. D)1.0 × 10^-7 M. E)1.0 × 10^-14 M.

Name: The OH - concentration in a 7.5 × 10 -3 M Ca(OH) 2 solution is A)7.5 × 10 -3 M. B)1.5 × 10 -2 M. C)1.3 × 10 -12 M. D)1.0 × 10 -7 M. E)1.0 × 10 -14 M.
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Question

Quizplus · Accepted Answer

Ca(OH)₂ dissociates into one Ca²⁺ ion and two OH^- ions. Therefore, the OH^- concentration is twice the concentration of Ca(OH)₂, which is 2 × 7.5 × 10^-3 M = 1.5 × 10^-2 M.

The OH- Concentration in a 7

The OH^- Concentration in a 7