100 g of potassium chloride was dissolved in 400 g of H2O. Determine the mass fraction of potassium
September 28, 2021 | education
| 100 g of potassium chloride was dissolved in 400 g of H2O. Determine the mass fraction of potassium chloride in the solution.
Solution mass = solvent mass + solute mass = 400 g + 100 g + 500 g.
Mass fraction of dissolved substances = mass of dissolved substances / mass of solution = 100 g / 500 g = 0.2 = 20%.
Answer: mass fraction of sodium chloride = 20%.
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