Question

calculate the mass percentage of A, if 2g of A is dissolved in 18g of water to make its solution​

Answer 1

Mass percent of solute =mass of solution

mass of solute×100

Mass of solute = 2 g

Mass of solvent = 18 g

Mass of solution = 20 g

∴ Mass percent of solute

=202×100

= 10%

Hence, option B is correct.

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