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A solution is prepared by adding 2 g of ...

A solution is prepared by adding 2 g of a substance A to 18 g of water. Calculate the mass percent of the solute.

Text Solution

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The correct Answer is:
Percent composition of solute `=("Mass of solute")/("Total mass of solution")xx100=(2g)/(20g)xx100=10%`
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Knowledge Check

  • At room temperature, a dilute solution of urea is prepared by dissolving 0.60 g of urea in 360 g of water. If the vapour pressure of pure water at this temperature is 35 mm Hg, lowering of vapour pressure will be : Molar mass of urea =60 g mol^(-1) )

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