Question

What will be the molarity of a solution which is obtained by dissolving 2g of in the decilitre of its aqueous solution

Answer 1

Answer:

Molarity = 0.10 • Mol • L-1 With Respect To

NaOH.

Explanation:

Molarity = Moles Of Salute \ Volume Of Solution

Molarity = 2 • g \ 40.0 • g • mol -1

×1 \ 500 • ml × 10 - 3 • L • mL -1

=? ? mol • L-1 .

Answer 2

Given: Mass of solution = 2g, Dissolved in Deciliter of aqueous solution.

To find: Molarity of the solution

Solution: Let the molecular weight of the solution be M

We know that molarity of a solution is number of gram molecular weight that is mole of a solute in one liter of solution that is mostly taken as water.

Here we are dissolving 2g of solution to make 100ml( 1 deciliter) of its aqueous solution.

Molarity = moles of solute/ Volume of solution

M= (2/M)/( 100×10^-3)

M = 20/M mol/L

Therefore, the molarity of the solution obtained will be (20/M) mol/Lwhere M is molecular weight of the solution.