Question

How do you determine the molarity of 2.25 mole of sulfuric acid, H2SO4, dissolved in 725 mL of solution?

Answer 1

Answer:

Explanation:

Molarity is a way of expressing concentration of a solution. It is defined as the number of moles of solute present in 1 litre of solution.

Mathematically,

Molarity = Number of moles of solute/Volume of solution (in Liters)

From the question,

Number of moles = 2.25 moles

Volume of solution = 725 ml = (725/1000) L = 0.725 L

Putting these numerical values in above formula

Molarity = 2.25/0.725

             = 3.103 M

It means, in 1 liter of the solution, we will have 3.103 moles of sulphuric acid.