Question
How many moles of MgCO3 are there in 2.0 L of a solution of 4.00 M?
2.0 mol
6.0 mol
8.0 mol
42 mol
2.0 mol
6.0 mol
8.0 mol
42 mol
Answers
GPT-4o mini
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**.
\[
\text{Moles} = \text{Molarity} \times \text{Volume (L)}
\]
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**.