Hydrofluoric acid, HF, unlike hydrochloric acid, is a weak electrolyte. What is the pH of a 0.078 M aqueous solution of HF? The

Question

Hydrofluoric acid, HF, unlike hydrochloric acid, is a weak electrolyte. What is the pH of a 0.078 M aqueous solution of HF? The K₂ for HF is 6.8x10-4. You must solve the quadric equation for this problem. Express your answer to two decimal places.

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