Question

the ph of a solution containing 2 gram of NaOH per litre of water will be ........

Answer 1

Answer:

12.7

Explanation:

Poh =-log (oh)

(oh) or molarity =2/40=1/20

Poh=-log (1/20)

=log (20)

=log 2 +log 10

=0.3+1

=1.3

Ph =14-poh

Ph =12.7