Question

A solution was prepared by dissolving 26.0 g of kcl in 225 g of water.

What is the mass percent of KCl in the solution?

(a) 10.4%
(b) 11.5%
(c) 13.5%
(d) 15.5%

Answer 1

To calculate the mass percent of KCl in the solution, find the mass of KCl and divide it by the total mass of the solution, then multiply by 100. The mass percent of KCl in the solution is approximately 10.4% (option a).

Step-by-step explanation:

To calculate the mass percent of KCl in the solution, we need to find the mass of KCl and divide it by the total mass of the solution, then multiply by 100.

The mass of KCl is given as 26.0 g, and the mass of the water is given as 225 g. Therefore, the total mass of the solution is 26.0 g + 225 g = 251.0 g.

Now we can calculate the mass percent: (26.0 g / 251.0 g) x 100% = 10.36%.

Therefore, the mass percent of KCl in the solution is approximately 10.4% (option a).