Question

Determine the mass percent composition of a solution made by dissolving 40.1g of LiOH in 681g of H2O

Answer 1

5.89%

Step-by-step explanation:

We are given;

• Mass of the solute, LiOH as 40.1 g
• Mass of the solvent, H₂O as 681 g

We are required to calculate the mass percent composition of solution;

• But; How do we calculate the mass percent composition of a solution?
• We use the formula;

• Mass composition of a solution = (Mass of solute/mass of solution) 100%

• Therefore;

Mass Percent = (40.1 g/681 g)× 100%

= 5.888 %

= 5.89%

Therefore, the mass percent composition of the solution is 5.89%