Question

Calculate the concentration of a 220 g solution of calcium chloride (CaCl2) that has a volume of 11 L

Answer 1

Answer: The concentration of the solution is 0.18 M

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
`CaCl_2` =
`\frac{\text {given mass}}{\text {Molar mass}}=(220g)/(111g/mol)=1.98mol`

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

`Molarity=(1.98mol)/(11L)=0.18M`

Therefore, the concentration of the solution is 0.18 M