Question

A solution contains 5 ml of alcohol mixed with 75 ml of water. Calculate the concentration of the solution in terms of volume percent.

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Answer 1

Answer:

Volume % of solution is calculated as follows:

volume of solute(5ml alcohol in this case)                  x 100%

volume of the solution formed( water plus alcohol= 80 ml)

=      5ml/ 80ml     x 100 %  =  25/ 4    =  6.25%

      volume concentration  =  6.25%

Answer 2

Answer:

Answer

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%