# Question 6228f

Apr 9, 2017

800 mL solution

#### Explanation:

% (m/v) is just a fancy way of saying you have so many grams of solute for every $100 m L$ of solution.

If the question states you have a 15%(m/v) $N a O H$, that just means that there are $15 \text{grams}$ of solute for every $100 \text{mL}$ of solution (NaOH + water)

Now, you are asked what volume or how much volume will contain 120 grams of $N a O H$.

Well, since we have established a conversion factor for the amount of solute dissolved per $100 \text{mL}$ of solution, we can figure out our unknown by using dimensional analysis.

(120 cancel"g NaOH")/1*(100 "mL solution")/(15 cancel"g NaOH") = 800 "mL solution"#

$A n s w e r : 800 \text{mL solution}$