# What is dimensional analysis when a 5*mL volume of a solution whose concentration is 0.1*mol*L^-1 is considered?

## What molar quantity is contained in this volume?

Apr 4, 2017

An idea as to whether you have the correct order of operations/calculation........

#### Explanation:

You have $0.1 \cdot m o l$ of stuff dissolved in $1 \cdot L$ of water............

Clearly this solution has units of concentration, in $m o l \cdot {L}^{-} 1$. You take $5 \cdot m L$ of this solution, and $\text{how many moles do you have?}$

well the product, $\text{concentration"xx"volume}$ gives:

0.1*mol*cancel(L^-1)xx5xx10^-3cancelL=??mol

And the answer is in $\text{moles}$, as you require. Had you got an answer with units of $L$ or $L \cdot m o {l}^{-} 1$ you would know that something had gone awry - it is easy to make these kind of mistakes. Anyway, if you would respecify your question, someone will have another go.