70 g of water was added to 330 g of a solution with a mass fraction of glucose of 10%.

| August 2, 2021 | education

70 g of water was added to 330 g of a solution with a mass fraction of glucose of 10%. Determine the mass fraction of glucose in the new solution.

The glucose formula is C6H12O6.
1) Calculate the mass of the solute glucose. for this, we multiply the mass fraction of glucose in its solution by the mass of the entire solution and divide by one hundred percent: 330 * 10/100 = 33g.
2) Calculate the mass of the entire solution after adding water. To do this, add the mass of the original solution and the mass of added water: 330 + 70 = 400g.
3) Calculate the mass fraction of glucose in the new solution. To do this, divide the mass of the solute glucose by the mass of the resulting solution and multiply by one hundred percent: 33/400 * 100 = 8.25% – the answer.



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