Question

30. The number of hydrogen ions in 10 ml of a solution
with pH = 13 is
(1) 1013
(2) 6.023 * 1080
(3) 6.023 x 1010 (4) 6.023 * 1013 Toda
39​

Answer 1

Answer:option 2)6.023x 10^8

Explanation:pH=13

-log[H+]= 10^-13

We know

M=w/m x v(l)

10^-13=w/1 x 1000/10...(H=1

10ml = 10/1000 litre)

W= 10^-15g

Now

1gm=Na

10^-15= Na x 10^-15

. =6.023x10^23x10-15

. =6.023x10^8