Calculate the molar concentration of 20.0 grams of {eq}MgBr_2 {/eq} in 340.0 mL of solution.

## Question:

Calculate the molar concentration of 20.0 grams of {eq}MgBr_2 {/eq} in 340.0 mL of solution.

## Molar Concentration:

The molar concentration is another way of indicating the *molarity* of the solution. When expressing the molarity of a solution, we enclose the chemical formula of the solute in brackets. {eq}\rm [ ~ ]{/eq}. In addition, the unit of the solution concentration unit of molarity is in *M* or in moles per Liter. Where:

{eq}\rm Molarity~ (M) = \dfrac{moles~solute}{Liters~solution} {/eq}

## Answer and Explanation: 1

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We need the molar mass of MgBr2 to arrive with the moles of solute dissolved. The molar mass is 184.1 grams per mole.

{eq}\rm...

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Chapter 8 / Lesson 4What is molarity? What is molality? Compare molarity vs molality by viewing molality and molarity formulas, how to calculate molarity and molality, and examples.