How many moles of MgCO3 are there in 2.0 L of a solution of 4.00 M?

Question

2.0 mol

6.0 mol

8.0 mol

42 mol

Answer 1

To find the number of moles of MgCO3 in a solution, you can use the formula:

\[ \text{Moles} = \text{Molarity} \times \text{Volume (L)} \]

Given that the molarity (M) of the solution is 4.00 M and the volume (V) is 2.0 L, you can plug these values into the formula:

\[ \text{Moles} = 4.00 , \text{mol/L} \times 2.0 , \text{L} = 8.00 , \text{mol} \]

So, the number of moles of MgCO3 in the solution is 8.0 mol.