Question

Vinegar is a solution of acetic acid. What is the molarity of the solution produced when 125g of acetic acid (C2H4O2) is dissolved in sufficient water to prepare 1.50L of solution?

Answer 1

Answer: The molarity of solution is 1.39 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 =
`\frac{\text {given mass}}{\text {molar mass}}=(125g)/(60g/mol)=2.08mol`

`V_s` = volume of solution in L

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

`Molarity=(2.08mol)/(1.50L)=1.39mol/L`

Therefore, the molarity of solution is 1.39 M