Question

A solution of CuSO4 is labelled 0.01 M. How much CuSO4 in grams, must be used to make 1 liter of solution?

Answer 1

Correct answer: C) 1.6 g

Molarity is the moles of solute present per liter solution.

The given molarity of the solution is 0.01 M.

Volume of the solution = 1 L

Calculating the moles from molarity and volume:

$Moles of CuSO_{4} = 0.01 \frac{mol}{L} * 1 L = 0.01 mol CuSO_{4}$

Converting moles to mass of copper sulfate:

$0.01 mol CuSO_{4} * \frac{159.61 g CuSO_{4}}{1 mol CuSO_{4}} = 1.6 g CuSO_{4}$

Answer 2

Answer:

1.595 g

Explanation:

The molar mass of CuSO4 is 159.5 g. 159.5 X 0.01 = 1.595 g CuSO4.