Question

What is the molarity of a 3.0-liter solution that contains 0.45 moles of solute

Answer 1

Moles = n/v where n is the moles of solute and v being the liters of solution.
We can put in the information provided to find the molarity.

Moles = .45/3.0 = .15
So we now know that the molarity of that solution is .15!
 I hope I helped you :). Make sure to memorize that formula because it's not that hard as long as you know what to plug in.

Answer 2

Answer : The molarity of the solution is, 0.15 mole/L

Solution :

Molarity : It is defined as the number of moles of solute present in one liter of the solution.

Formula used :

$Molarity=\frac{\text{moles of solute}}{\text{Volume of solution in liters}}$

Now put all the given values in this formula, we get the molarity of the solution.

$Molarity=\frac{0.45mole}{3L}=0.15mole/L$

Therefore, the molarity of the solution is, 0.15 mole/L