Calculate [OH^-] in a 4.0 × 10^-8 M solution of NaOH. A) 8.2 × 10^-8 M B) 6.7 × 10^-6 M C) 2.5 × 10^-7 M D) 4.0 × 10^-8 M E) 1.2 × 10^-7 M

Name: Calculate [OH - ] in a 4.0 × 10 -8 M solution of NaOH. A) 8.2 × 10 -8 M B) 6.7 × 10 -6 M C) 2.5 × 10 -7 M D) 4.0 × 10 -8 M E) 1.2 × 10 -7 M
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Quizplus · Accepted Answer

The [OH⁻] from NaOH is 4.0 × 10⁻⁸ M, but water also contributes OH⁻ ions. The total [OH⁻] is calculated using the ion product of water (Kw = 1.0 × 10⁻¹⁴), resulting in 1.2 × 10⁻⁷ M.

Calculate [OH-] in a 4

Calculate [OH^-] in a 4