Question

A solution is prepared by dissolving 10.0 g of NaOH in
sufficient H2O to produce 250 mL of solution. Calculate
the molarity of this solution​

Answer 1

Answer:

Explanation:

Since molarity (M)

= No. of moles of solute Volume of solution in litres  

=Mass of NaOH/ Molar mass of NaOH0.250L

4g/40g0.250L=0.1mol0.250L

0.4mol−1

0.4M

Note that molarity of a solution depends upon temperature because volume of a solution is temperature dependent