Question

5 g of NaOH is dissolved in sufficient of water to form 500 mL solution. The molarity of the solution is​

Answer 1

Answer - 0.25 M

Explanation:

Molecular wt. of NaOH is 40 g/mol

No. of moles of NaOH = 5 g ÷ 40 g/mol = 0.125 moles

500 mL water = 0.500L water(convert mL into L)

Molarity of solution = 0.125 moles ÷ 0.500 L = 0.25 Molar