Using the following

K_(a)

values, calculate the

pH

values for each of these solutions (using 2 significant figures). [

K_(a)

for acetic acid =

1.78\\\\times 10^(-5);K_(a)

for phosphoric acid

=7.52\\\\times 10^(-3);K_(a)

for

H_(2)CO_(3)=4.3\\\\times 10^(-7)

\ A. A solution of

0.3M

acetic acid has a

pH

of

Using the following Ka values, calculate the pH values for each of these solutions (using 2 significant figures). [ Ka for acetic acid = 1.78105;Ka for phosphoric acid =7.52103;Kaa for H2CO3=4.3107J A. A solution of 0.3M acetic acid has a pH of