A 4.5×10-2 M solution of a weak monoprotic acid has a pH of 4.27. What is...

Question

Question

A 4.5×10^-2 M solution of a weak monoprotic acid has a pH of 4.27. What is pK_a for this acid?

science chemistry

Answer 1

Answer #1

[H+ 1 10-4:27 - 5.31x10-5 - Htlayl & A-lay) HA 4.5x10² i 4.5x102 Ka= [H + 1 [A-] (НА ] = 5.378105 22 4.5x102x : (5.31x103)2 (

Answer 2

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