A solution contains 50g of common salt in 400g of water. Calculate the concentration in terms of mass by mass percentage of the solution.

9.7%

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9.99%

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11.11%

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11.50%

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Solution

The correct option is C
11.11%

Mass of solute = 50g

Mass of solvent = 400g

Mass of solution = Mass of solute + mass of solvent = 50 + 400 = 450g

Mass percentage of solution = $\frac{m a s s o f s o l u t e}{m a s s o f s o l u t i o n} \times 100$ = $\frac{50}{450} \times 100$ = 11.11%

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A solution contains 50 g of common salt in 400 g of water. Calculate the concentration by mass percentage of the solution.

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