# How much of a 5.4 M sucrose solution should you use to make 81.0 mL of a 0.030 M solution?

Apr 15, 2016

$0.45 \text{ml}$

#### Explanation:

Concentration = no. moles/volume

Or:

$c = \frac{n}{v}$

$\therefore n = c \times v$

The number of moles of sucrose $n$ is the same in both solutions so we can write:

$5.4 \times v = 0.03 \times 81$

$\therefore v = \frac{0.03 \times 81}{5.4}$

$v = 0.45 \text{ml}$