Question

Plzz solve this Ques .

A solution contains 42 g of sodium hydroxide in 320 g of water . Calculate it's concentration in terms of mass % .​

Answer 1

Answer:

Mass (solute) = 40 gram

Mass (solvent) = 320 gram

Mass (solution) = Mass (solute) + Mass (solvent)

                         = 40 gram + 320 gram

                         = 360 gram

∴ Mass % (solution) = [ Mass (solute)/Mass (solvent)] × 100

                                 = [40/360] × 100

                                 = 11.1 %

Answer 2

Answer:

11.1% is answer of question