A Monoprotic Weak Acid, When Dissolved in Water, Is 0

question 79

Multiple Choice

A monoprotic weak acid, when dissolved in water, is 0.92% dissociated and produces a solution with pH = 3.42. Calculate K_a for the acid.

• A) 1.4 × 10^-7
• B) 2.8 × 10^-3
• C) 3.5 × 10^-6
• D) We need to know the initial concentration of the acid.
• E) none of these

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