Question

QUESTION 8 Solve the problem. What is the percent concentration of a dextrose solution that contains \( 4.5 \mathrm{~g} \) of dextrose in \( 50 \mathrm{ml} \) of water?

Answer 1

The percent concentration of the dextrose solution that contains 4.5 g of dextrose in 50 mL of water is 8.26%.

Step-by-step explanation:

To find the percent concentration of the dextrose solution, we need to calculate the mass percent of dextrose in the solution.

First, we need to calculate the total mass of the solution by adding the mass of dextrose (4.5 g) and the mass of water (50 mL). Since the density of water is 1 g/mL, the mass of water is 50 g. So, the total mass of the solution is 4.5 g + 50 g = 54.5 g.

Next, we can calculate the mass percent of dextrose by dividing the mass of dextrose by the total mass of the solution and multiplying by 100:

Mass percent = (mass of dextrose / total mass of solution) × 100

Mass percent = (4.5 g / 54.5 g) × 100 = 8.26%