300 g of the solution contains 60 g of table salt. Determine the mass fraction of salt in the solution.

Let’s calculate the mass fraction of sodium chloride knowing that 300 g of solution contains 60 g of sodium chloride.

W (NaCl) = m (NaCl) • m (solution) / 100% = 60 g / 300 g • 100% = 20%.

The residual mass of the solution is occupied by water.
m (H2O) = m (solution) – m (NaCl) = 300 g – 60 g = 240 g.



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