Question

What is the molar concentration (molarity, M) of a 450 mL solution that contains 2.00 mol of FeCl₂?​

Answer 1

3.50 Mol/L or M

Step-by-step explanation:

450 mL / 1000 = 0.45 L

1 mole ------- 126.751 g

? mole ------- 200 g

moles = 200 * 1 / 126.751

moles = 200 / 126.751

= 1.57789 moles FeCl₂

M = n / V

M = 1.57789 / 0.45

= 3.50 Mol/L or M