A chemist wants to make {eq}500.0\ mL {/eq} of {eq}\rm 0.215\ M\ NaCl {/eq}. What mass of {eq}\rm NaCl {/eq} is needed?

## Question:

A chemist wants to make {eq}500.0\ mL {/eq} of {eq}\rm 0.215\ M\ NaCl {/eq}. What mass of {eq}\rm NaCl {/eq} is needed?

Molarity

The term molarity refers to the concentration of the solution. It expresses the moles of solute in a solution of volume 1L. Its SI unit is mol/L. Formula for molarity is given below-

{eq}C = \dfrac{{{W_{\rm{B}}}}}{{{M_{\rm{B}}} \times V({\rm{litres)}}}} {/eq}

## Answer and Explanation: 1

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View this answer**Given Data:**

- The molarity of solution (solute) is {eq}0.215\;{\rm{M}} {/eq}

- The volume of solution is {eq}500.0\;{\rm{mL}} {/eq}.

If the molarity is...

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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.