To a sugar solution weighing 200 g and a mass fraction of 15% was added 150 g

| September 21, 2021 | education

To a sugar solution weighing 200 g and a mass fraction of 15% was added 150 g. 10% sugar solution. Calculate the mass fraction of sugar in the resulting solution.

1) Find the mass of the solute sugar in the first solution. To do this, we multiply the mass of the solution by the mass fraction of the substance and divide by one hundred percent: 200 * 15/100 = 30g.
2) Find the mass of the solute sugar in the second solution: 150 * 10/100 = 15g.
3) Find the mass of the solute in the resulting solution. To do this, add the masses of the dissolved substances of the original solutions: 30 + 15 = 45.
4) Find the mass of the resulting solution. To do this, add the masses of the initial solutions: 200 + 150 = 350g.
5) Find the mass fraction of sugar in the resulting solution. For this, the mass of the solute is divided by the mass of the solution and multiplied by one hundred percent: 45/350 * 100 = 12.9% – the answer.



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