The ka of benzoic acid is 6.4 x 10–5. what is the approximate ph of a 1.5 m solution of benzoic acid?

2.01

Explanation:

initial : c         0             0

eqm:            

when is very very small the, the expression will be,

And,

Thus the expression will be,

Now put all the given values in this expression, we get

fe 55.85 g/mol and h2o 18.02 g/mol.