Calculate [OH^-] in a 4

question 30

Multiple Choice

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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