Question

to prepare 0.66 moles of 0.5 m naoh, what volume of water would you need?
a 0.33 l
b 330 l
c 1,320 l
d 1.320 l

Explanation:

Step1: Recall the formula for molarity

Molarity ($M$) is defined as $M=\frac{n}{V}$, where $n$ is the number of moles and $V$ is the volume in liters. We need to solve for $V$, so we can rewrite the formula as $V = \frac{n}{M}$.

Step2: Substitute the given values

We are given that $n = 0.66$ moles and $M=0.5$ M. Substituting these values into the formula $V=\frac{n}{M}$, we get $V=\frac{0.66}{0.5}$.

Step3: Calculate the volume

Performing the division: $\frac{0.66}{0.5}=1.32$ L.

Answer:

D. 1.320 L