Question

1.Calculate the volume in liters of a 3.10 M KCl solution to obtain 0.15 mol of KCl.

2.Calculate the volume in liters of a 4.65 M HCl solution to obtain 4.60 mol of HCl.

3.Calculate the volume in milliliters of a 3.55 M K2SO4 solution to obtain 2.30 mol of K2SO4.

Answer 1

1)

Answer

0.04839L

Explanation

Molarity is defined as the number of moles of solute per liter of solution

3.10 M KCl = 3.10 mole of KCl per liter of solution

Volume of the solution for 0.15 mol of KCl = (1L/3.10mol) ×0.15mol = 0.04839L

2)

Answer

0.9892L

Explanation

4.65M KCl solution = 4.65mol of KCl per liter of solution

Volume of 4.65M KCl solution containing 4.60mol of HCl = (1L/4.65mol)×4.60mol = 0.9892L

3)

Answer

647.9ml

Explanation

3.55M K2SO4 = 3.55mol of K2SO4 per 1000ml of solution

Volume of 3.55M K2SO4 solution containing 2.30 mol of K2SO4 = 647.9ml