what is the pH of a solution that mixes 30.00 mL of 0.010 M Ch3oh with...

what is the pH of a solution that mixes 30.00 mL of 0.010 M Ch3oh with 30.00 mL 0.00750 M Nach3co2?

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Expert Solution

We know that

Since the volume of the both acid and salt are the same [CH₃COOH] = 0.010 M

[CH₃COONa] = 0.00750 M

Ionization constant for acetic acid , K_a = 1.7510^-5

pK_a = - log K_a

= - log (1.7510^-5)

= 5 - log 1.75

= 4.76

Substitute he above values in the first eqaution we have

queen_honey_blossom answered 10 months ago

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