Question

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

Answer 1

1.5 moles

Step-by-step 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

`= (3 \: * \: 500)/(1000) \: moles \\ = 1.5 \: moles`

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