High School

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

a) 10.00%
b) 11.14%
c) 9.68%
d) 12.53%

Answer :

Final answer:

To calculate the mass % of the solution, we need to find the mass of CsBr and the mass of the solution. The mass of CsBr is given as 99.7 g. To find the mass of the solution, we can use the density of the solution, which is given as 1.06 g/mL. Finally, we can calculate the mass % of the solution by dividing the mass of CsBr by the mass of the solution and multiplying by 100.

Explanation:

To calculate the mass % of the solution, we need to find the mass of CsBr and the mass of the solution. The mass of CsBr is given as 99.7 g. To find the mass of the solution, we can use the density of the solution, which is given as 1.06 g/mL. Since the volume of the solution is given as 895 mL, we can multiply the volume by the density to find the mass of the solution:

Mass of solution = 895 mL * 1.06 g/mL = 949.7 g

Finally, we can calculate the mass % of the solution by dividing the mass of CsBr by the mass of the solution and multiplying by 100:

Mass % of solution = (99.7 g / 949.7 g) * 100 = 10.49%