Question

Ag No, 6. Calculate the volume, in L, needed to make a 1.0 M solution of sugar given 20.0 mL of 5.0 M sugar solution. Lalitab

Answer 1

Given 20.0 mL of 5.0 M sugar solution.

We know that 1 L = 1000 mL

Therefore 1 mL = 1/1000 L

Converting 20 mL to litres = 20$\times$1/1000 = 0.02 L

So we have 0.02 L of 5.0 M sugar solution.

converting this 5.0 M 0.02 L sugar solution to 1 M,

We can use the equation, M₁V₁ = M₂V₂

If M₁ = 5.0 M

M₂ = 1.0 M

V₁ = 0.02 L

V₂ = (5.0 $\times$ 0.02) / 1.0

   = 0.1 L

so we require 0.1 L of water to make 1 M sugar solution from 5 M, 20 mL sugar solution.