Calculate percentage concentration of a solution obtained after dissolving:
- 12 g of KCl in 150 g of water
To calculate the percentage concentration of a solution, you need to determine the ratio of the mass of the solute to the mass of the solution, and then multiply by 100.
Given:
Mass of solute (KCl) = 12 g
Mass of solvent (water) = 150 g
Step 1: Calculate the total mass of the solution.
Total mass of solution = mass of solute + mass of solvent
Total mass of solution = 12 g + 150 g = 162 g
Step 2: Calculate the percentage concentration.
Percentage concentration = (mass of solute / total mass of solution) * 100
Percentage concentration = (12 g / 162 g) * 100
= 7.41%
Therefore, the percentage concentration of the solution obtained after dissolving 12 g of KCl in 150 g of water is 7.41%.