1.) a.) Sodium fluoride is added to many municipal water supplies to reduce tooth decay. Calculate...

Question

Question

1.)

a.) Sodium fluoride is added to many municipal water supplies to reduce tooth decay.

Calculate the pH of a 3.78×10^-3M solution of NaF, given that the K_a of HF = 6.80 x 10^-4 at 25°C.

b.)Calculate the pH of a solution that is 0.215M benzoic acid and 0.140M sodium benzoate, a salt whose anion is the conjugate base of benzoic acid.

_____express the pH in at least 2 decimal places.

science chemistry

Answer 1

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