High School

A solution is prepared by dissolving 99.7 g of CsI in enough water to form 895 mL of solution. Calculate the mass percentage of the solution if the density of the solution is 1.06 g/mL.

A. 12.7%
B. 5%
C. 9.4%
D. 9.3%

Answer :

The mass percent of the solution is approximately 10.51%.

To calculate the mass percent of the solution, we need to determine the total mass of the solution.

The mass of the solution can be calculated using the density and volume of the solution:

Mass of the solution = Density × Volume

Mass of the solution = 1.06 g/ml × 895 ml

Mass of the solution = 948.7 g

The mass percent of the solution can be calculated by dividing the mass of the solute (CSI) by the mass of the solution and multiplying by 100:

Mass percent = (Mass of CSI / Mass of the solution) × 100

Mass percent = (99.7 g / 948.7 g) × 100

Mass percent ≈ 10.51%

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