Question

3. What is the mass % of a solution that contains 36g KCl in 475g of water?

Answer 1

Answer:

%KCl = 7.05%

%Water = 92.95%

Explanation:

Step 1: Given data

• Mass of KCl (solute): 36 g

• Mass of water (solvent): 475 g

Step 2: Calculate the mass of the solution

The mass of the solution is equal to the sum of the masses of the solute and the solvent.

m = 36 g + 475 g = 511 g

Step 3: Calculate the mass percentage of the solution

We will use the following expression.

%Component = mComponent/mSolution × 100%

%KCl = 36 g/511 g × 100% = 7.05%

%Water = 475 g/511 g × 100% = 92.95%