A solution contains 40 grams of common salt in 320 grams of water. Calculate the concentration in terms of mass by mass percentage?
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concentration = mass of solute / mass of solvent × 100
= 40/320 ×100 = ⅛ × 100
Concentration = 12.5%
Answered by
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Hey there!
Given,
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 %
Hope It Helps You!
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