Question

Q2 A solution contains 40g of common salt in 50 litres of water. Calculate the concentration in terms of mass by volume of solution.
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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 %