How many moles of MgCl2 are present in 5 liters of a 0.12 M MgCl2 solution?

mols = M x L = ?

.6 moles

To calculate the number of moles of MgCl2 present in a solution, you need to use the formula:

moles = molarity × volume

Given:
Molarity of MgCl2 solution = 0.12 M
Volume of the solution = 5 liters

Substitute the values into the formula to find the number of moles:

moles = 0.12 M × 5 L
moles = 0.6 moles

Therefore, there are 0.6 moles of MgCl2 present in 5 liters of a 0.12 M MgCl2 solution.