Question

100 ml of 10M hcl is diluted with water to 2 L find the molarity of the solution.

Answer 1

Given:

Initial Volume, V1 = 100 ml = 0.1 L

Initial Molarity, M1 = 10 M

Final Volume, V2 = 2 L

To Find:

Final Molarity, i.e., M2

Calculation:

Usinf molarity equation, we have:

M1 × V1 = M2 × V2

⇒ 10 × 0.1 = M2 × 2

⇒ M2 = 1/2

⇒ M2 = 0.5 M

- So the final molarity of the solution will be 0.5 M

Answer 2

Answer:

The molarity of solution is 0.5 M.

Explanation:

Given data:

Initial volume = 100 mL (100/1000 = 0.1 L)

Initial molarity = 10 M

Final volume = 2 L

Final molarity = ?

Solution:

M₁V₁ = M₂V₂

10 M × 0.1 L  = M₂ × 2 L

1 M.L = M₂ × 2 L

M₂ = 1 M. L/2 L

M₂ = 0.5 M