When 020 Mole HF Is Dissolved in Water to a Volume

question 23

Multiple Choice

When 0.20 mole HF is dissolved in water to a volume of 1.00 L,5.8% of the HF dissociates to form F^-(aq) .What is the equilibrium constant for the reaction? HF(aq) + H₂O( ) F^-(aq) + H₃O⁺(aq)

• A) 1.3 × 10^-4
• B) 7.1 × 10^-4
• C) 1.2 × 10^-2
• D) 1.7 × 10^-2
• E) 6.2 × 10^-2

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