Question

What is the molarity of 200 ml of solution in which 2.0 moles of sodium bromide is dissolved?

Answer 1

Answer:

The molarity of the solution is 10M

Explanation:

The molarity is defined by the moles of the solute per liter of solution.

$Molarity=\frac{moles solute}{L solution}$

So, we need to convert the given quantity of solution from mL to Liters.

$2.00mL*\frac{1L}{1000mL} =0.2L$

Now we replace the given values in the formula of molarity:

Molarity = $\frac{2.0moles}{0.2L} \frac{of sodium bromide}{of solution}$

Molarity = 10M

Answer 2

Taking into account the definition of molarity, the molarity of the solution is 10 $\frac{moles}{liter}$.

In first place, you need to know that 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:

$Molarity=\frac{number of moles of solute}{volume}$

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

In this case, you know that:

• number of moles of solute= 2 moles of sodium bromide
• volume= 200 mL= 0.2 L (being 1000 mL= 1 L)

Then, replacing these values ​​in the definition of molarity:

$Molarity=\frac{2 moles}{0.2 L}$

and solving you get:

Molarity= 10 $\frac{moles}{liter}$

In summary, the molarity of the solution is 10 $\frac{moles}{liter}$.

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