Question

20ml of 0.1 n hydrochloric acid is mixed with 20ml of 0.1 n potassium hydroxide solution. The ph of resulting solution is

Answer 1

Answer:

Explanation:

n1v1+n2v2/v1+v2 =hplus concentration

2+2/40

=4/40

=0.1

ph=-log hplus

=-log (10^-1)

1