Question

How many moles of hcl are required to make 500 ml of a 3.0 mol/l solution of hcl?

Answer 1

Answer:

1.5 moles

Explanation:

To find the number of moles of HCl in 500 mL of a 3 M solution of HCl, we consider moles in 1 liter/ 1000 mL.

3 moles HCl is contained in 1000 mL

x moles is HCl is contained in 500 mL

$= \frac{3 \: \times \: 500}{1000} \: moles \\ = 1.5 \: moles$

Hence the number of moles of HCl in 500 mL is 1.5 moles.