Question

a solution contains 50 ml of alcohol mixed with 150 ml of water calculate the concentration of the solution

Answer 1

Hope this will help you.

Answer 2

SOLUTIONS:

This solution contains liquid solute (alcohol) mixed weather liquid solvent (water), so we have to calculate the concentration of the solution in terms of volume percentage of solute (alcohol). Now, we know that :

» Concentration of solution = Volume of solute / Volume of solution × 100

Here,

Volume of solute (alcohol) = 50 mL

Volume of solvent (water) = 150 mL

So,

Volume of solution = Volume of solute + Volume of solvent

⇒ 50 + 150

⇒ 200 mL

Now, putting these values of 'volume of solute' and 'volume of solution' in the above formula we get :

⇒ Concentration of solution = 50/200 × 100

⇒ 50/2 = 25 % ( by volume )

Thus, the concentration of this alcohol solution is 25 per cent or that is a 25 % alcohol solution (by volume).