If Ka for acetic acid is 1.78*10-5, the pKa of acetic acid is ________ – McqOptions

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1.	If K_a for acetic acid is 1.78*10^-5, the pK_a of acetic acid is _________
A.	0.475
B.	4.75
C.	2.5
D.	0.25
Answer» C. 2.5

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