a solution contains 40g of common salt in 320g of water calculate the concentration in the term of mass by mass percentage of the solution
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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 %
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