If 25.0 mL of urine has a mass of 25.725 g and contains 1.929 g of solute,what is the mass/mass percent concentration of solute in the urine sample?

Question

Quizplus · Accepted Answer

The mass/mass percent concentration is calculated by dividing the mass of the solute by the total mass of the solution and then multiplying by 100. Here, the mass of the solute is 1.929 g and the total mass of the solution (urine) is 25.725 g. So, the calculation is (1.929 g / 25.725 g) * 100 = 7.499%.

If 250 ML of Urine Has a Mass of 25