Question

0.250 moles of NaCl is dissolved in 0.850 L of solution. What is the molar concentration?

Answer 1

Considering the definition of molarity, the molar concentration is 0.294 $\frac{moles}{liter}$.

Molarity reflects the concentration of a solution indicating the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of the solute by the volume of the solution:

$molarity=\frac{amount of moles of solute}{volume}$

Molarity is expressed in units $\frac{moles}{liter}$.

In this case, you know:

• amount of moles of solute= 0.250 moles
• volume= 0.850 L

Replacing in the definition of molarity:

$molarity=\frac{0.250 moles}{0.850 L}$

Solving:

molarity= 0.294 $\frac{moles}{liter}$

Finally, the molar concentration is 0.294 $\frac{moles}{liter}$.

Learn more about molarity with this example: brainly.com/question/15406534?referrer=searchResults