Calculate the Concentration of [H⁺] of a Buffered Solution Containing

question 66

Multiple Choice

Calculate the concentration of [H⁺] of a buffered solution containing 5.0 × 10⁻⁴ M HCN (K_a = 6.2 × 10⁻¹⁰) and 1.5 × 10⁻⁴ M NaCN.

• A) 3.06 × 10⁻⁹ M​
• B) ​0.22 × 10⁻⁹ M
• C) 2.07 × 10⁻⁹ M
• D) 4.12 × 10⁻⁹ M
• E) 4.58 × 10⁻⁹ M

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