Question

100ml of 1N NaOH solution ,200ml of 0.5 N NaOH solution ,500 ml of 0.1NNaOH solution and 200ml of 0.25 N NaOH solution are mixed together.The normality of the resultant solution is _

Answer 1

Using the formula

N1V1+N2V2+N3V3+N4V4/v1+v1+v3+v4

100*0.1+200*0.5+500*0.1+200*0.25/1000 =

0.21N

Normality of resulting solution is 0.21N

Answer 2

Answer:0.3

Explanation:

(N1V1+N2V2+N3V3+N4V4)/(V1+V2+V3+V4)

=(100+100+50+50)/1000

=300/1000

=0.3N