Equal volumes of 0.100 M hydrofluoric acid (HF, Ka = ) and 0.100 M ammonia (NH₃, Kb =…

CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases

Problem

Equal volumes of 0.100 M hydrofluoric acid (HF, Ka = 6.8×10−46.8 \times 10^{-4}) and 0.100 M ammonia (NH₃, Kb = 1.8×10−51.8 \times 10^{-5}) are mixed at 25 °C. Calculate the pH of the final solution.

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