Question

If a 1.45 M solution has 2.43 g HCl dissolved, what is the volume of solution? (Change g HCl into mol using molar mass)

Answer 1

Answer: The volume of solution is 0.0459 L

Step-by-step explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution

`Molarity=(n)/(V_s)`

where,

n = moles of solute

`V_s` = volume of solution in L

moles of HCl (solute) =
`\frac{\text {given mass}}{\text {Molar mass}}=(2.43g)/(36.5g/mol)=0.0666`

Now put all the given values in the formula of molality, we get

`1.45M=(0.0666)/(V_s)`

`V_s=(0.0666)/(1.45)=0.0459`

Therefore, the volume of solution is 0.0459 L