A solution is prepared by dissolving 96.4 g of RbI in enough water to form 865 mL of solution.Calculate the mass % of the solution if the density of the solution is 1.06 g/mL.
A) 11.3%
B) 12.7%
C) 9.4%
D) 10.5%
E) 11.9%

Question

Quizplus · Accepted Answer

First, we need to calculate the total mass of the solution:

mass of RbI = 96.4 g 
volume of solution = 865 mL 
density of solution = 1.06 g/mL

We can use the formula:

mass = volume x density

mass of solution = 865 mL x 1.06 g/mL = 917.9 g

Next, we can calculate the mass % of the solution:

mass % = (mass of RbI / mass of solution) x 100%

mass % = (96.4 g / 917.9 g) x 100% = 10.5%

Therefore, the answer is D, 10.5%.

A Solution Is Prepared by Dissolving 96