Question

what mass on NaOH is present in 502 g solution of NaOH in water having molality 4m?

Answer 1

Answer:

30.32 grams

Explanation:

m = no of moles of solute / mass of solution

4 = no of moles of NaOH / 0.502

no of moles of NaOH = 2.008

given mass of NaOH / mass of NaOH = 2.008

given mass of NaOH =2.008 × 40

given mass of NaOH = 30.32 grams