Calculate mass by mass % of solution which contains 20g of urea dissolved in 140 g of water.
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Answer:
Urea dissolved = 20g
Water ( Mass ) = 140g
.°. Total Mass Of The Solution= 140g + 20g
= 160g
Therefore, mass by mass percentage of the solution = Mass of the solute / Total mass of the solution × 100
i.e, 20/160 × 100
=12.5% Ans.
Explanation:
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