Question

Ole
(4)
What is the molarity of NaOH solution if 250 mL of it contains 1 mg of NaOH?
(1) 10-1 M
(2) 10-2 M.​

Answer 1

Answer:

10-2 M.

hope it helps you

Answer 2

Answer:

250 ml.of NaOH contains=1 x10-3 gm

1000 ml.of NaOH contains= 4 x 10–3 gm

So Normality of NaOH Solution

=4 x 10–3/40 Normal

=1 X 10–4 N

So pOH =-log(1 X 10–4) =4

pH =14-pOH = 14–4=10