50 g of the substance was dissolved in 150 g of water. Determine the mass fraction of the solute

50 g of the substance was dissolved in 150 g of water. Determine the mass fraction of the solute in% in the resulting solution.

The mass of the solution obtained as a result of complete dissolution of the substance in water.
m (solution) = m (H2O) + m (in-va) = 150 g + 50 g = 200 g.
The mass fraction of the solute in the resulting solution is.
W (in-va) = m (in-va) / m (solution) • 100% = 50 g / 200 g • 100% = 25%.



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