Question

A solution contains 50 mL of alcohol mixed with 150 mL of water. Calculate the concentration of this solution.​

Answer 1

Answer:25%

Explanation:

Volume of solute= 50ml

Volume of solvent= 150ml

∴ Total volume= 150+50=200ml

Concentration=  

Volume of solution

Volume of solute

​

×100

                       =  

200

50

​

×100

                       =25%

Answer 2

Answer:

25%

Explanation:

Alcohol is the solute and water is the solvent. The solute is in lesser quantity than the solvent.

1. Add the two given volumes to get the volume of the solution.
2. Then divide the solute volume by the solution volume and
3. Multiply by 100 to get the concentration percentage.