Question

10-
10
librium moves
26. A solution of NaOH contain 0.04 gm of NaOH per
litre. Its pH is
(1) 10
(3) 11
27. 1 cc of 0.1 N HCI is added to 1 litre solution of
sodium chloride. The ph of the resulting solution will
be
Fodword
(3) 10​

Answer 1

plz refer to the attachment

Answer 2

The pH of the solution is 11

Quantity of NaOH = 0.04gm (Given)

Normality = Weight/ Equivalent Weight

Normality of the solution = 0.04/40

= 0.001  

normality = 0.001

So pOH= -log(0.001) = 3

pH. = 14 - pOH

pH. = 14–3

= 11

Therefore, the ph of the solution is 11.