Question

 How many moles are in 22.95cm3 of a 2.5moldm-3 sodium chloride solution

Answer 1

Proportion:

2.5 mol – 1000 mL

x mol – 22.95 mL

$x = \frac{2.5 \times 22.95}{1000} = 0.0573 \;mol$

Answer: 0.0573 mol