80 mL of solution contains 20 g of solute. Calculate the concentration in terms of mass by volume percentage of the solution.

35%

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45%

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25%

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55%

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Solution

Mass of the solute = 20 g
Mass of solvent = 80
Mass of solution = 80 + 20 = 100
Concentration in terms of mass by volume percentage = $\frac{mass of solute}{volume of solution} \times 100$
$\frac{20}{80} \times 100 = 25 %$
Hence, the concentration is 25 %.

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80 mL of solution contains 20 g of solute. Calculate the concentration in terms of mass by volume percentage of the solution.

Mass of the solute = 20 gMass of solvent = 80Mass of solution = 80 + 20 = 100 Concentration in terms of mass by volume percentage =mass of solutevolume of solution×100 2080×100=25% Hence, the concentration is 25 %.

Mass of the solute = 20 g
Mass of solvent = 80
Mass of solution = 80 + 20 = 100
Concentration in terms of mass by volume percentage = $\frac{mass of solute}{volume of solution} \times 100$
$\frac{20}{80} \times 100 = 25 %$
Hence, the concentration is 25 %.