Question

How many moles of CaCO3 are needed to dissolve in 0.600 liters to make a

2.25 M solution?
A 0.267 mol
B 3.77 mol
C 1.35 mol
D 2.43 mol

Answer 1

1.35 moles of CaCO₃

Step-by-step explanation:

Molarity, it is a sort of concentration that indicates the amount of moles in 1 L of solution.

M = mol /L

This is a simple equation

M = 2.25 M

Our volume is 0.6L

M . L = mol

Then, 2.25 mol/L . 0.6L = 1.35 moles

We need 1.35 moles of CaCO₃