Question

Which is the molarity Of a solution that contains 9.63 grams of HCl In 1.5

Answer 1

The molar concentration of the solution is 0.176 mol/L.  

1. Convert grams to moles.  

$\text{Moles of HCl} = 9.63 \text{g HCl} \times \frac{\text{1 mol HCl}}{\text{36.46 g HCl}} = \text{0.2641 mol HCl}$

2. Calculate the molar concentration (c)  

$c = \frac{\text{moles}}{\text{litres}} = \frac{\text{0.2641 mol}}{\text{1.5 L}} = \textbf{0.176 mol/L}$