Question

150cmcube of a decimolar naoh solution are diluted to 750cmcube . Find molarity of diluted solution

Answer 1

Answer : The molarity of dilute solution is, 0.02 M

Solution :

According to the neutralization law,

$M_1V_1=M_2V_2$

where,

$M_1$ = molarity of NaOH solution = decimolar = 0.1 M

$V_1$ = volume of NaOH solution = $150cm^3=150ml$

$M_2$ = molarity of dilute solution = ?

$V_2$ = volume of dilute solution = $750cm^3=750ml$

Now put all the given values in the above law, we get the molarity of dilute solution.

$(0.1M)\times (150ml)=M_2\times (750ml)$

$M_2=0.02M$

Therefore, the molarity of dilute solution is, 0.02 M