What Is the H⁺ Ion Concentration in a 2

question 23

Multiple Choice

What is the H⁺ ion concentration in a 2.1 × 10^{-4 M} Ca(OH) ₂ solution?

• A) 7.3 × 10^{-4 M}
• B) 4.2 × 10^{-4 M}
• C) 2.1 × 10^{-4 M}
• D) 2.4 × 10^{-11 M}
• E) 4.8 × 10^{-11 M}

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