Question

What is the molarity of a solution that contains 4.70 moles of a solute in 750.0 {mL} of solution?

Answer 1

The molarity of a solution is defined as the number of moles of solute per liter of solution.

We first need to convert the volume of the solution from milliliters to liters:

`\implies 750.0\: \cancel{mL} * \frac{1\: L}{1000\: \cancel{mL}} = 0.750\: L`

Now we can calculate the molarity (M) using the formula:

`\implies M = \frac{\text{moles of solute}}{\text{liters of solution}}`

Substituting the given values:

`\begin{aligned}\implies M&= (4.70\: moles)/(0.750\: L)\\& = \boxed{6.27\: M}\end{aligned}`

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