Question

question 4
if you measured out 0.200 moles of nacl, and dissolved it in 0.500 l solution, what would be the molarity of the solution?
(hint: use eq. 1)
0.700 m
2.50 m
0.100 m
0.400 m

Explanation:

Step1: Recall the formula for molarity

Molarity ($M$) is calculated as $M=\frac{n}{V}$, where $n$ is the number of moles of solute and $V$ is the volume of the solution in liters.

Step2: Substitute the given values into the formula

Given $n = 0.200$ moles and $V=0.500$ L. Then $M=\frac{0.200}{0.500}$.

Step3: Calculate the value

$\frac{0.200}{0.500}=0.400$

Answer:

$0.400$ M