Question

A solution contains 5ml of alcohol mixed with 75 ml of water.calculate the canstruction of the solution terms of volume percent

Answer 1

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

       volume concentration  =  6.25%...

Answer 2

Required Answer:

Given:

• Volume of alcohol ( solute ) = 5 ml

• Volume of water ( solvent ) = 70 ml

To calculate:

• Concentration of solution.

Calculation:

We know that,

• Concentration of solution = ( Volume of solute/Volume of solution ) × 100

Let us calculate the volume of solution firstly:

• Volume of solution = Volume of solute + Volume of solvent

→ Volume of solution = ( 5 + 75 )ml

→ Volume of solution = 80ml

Now,

• Concentration of solution = ( Volume of solute/Volume of solution ) × 100

Substituting values-

→ Concentration of solution = ( 5/80 ) × 100

→ Concentration of solution = ( 5×100/80 )

→ Concentration of solution = ( 500/80 )

→ Concentration of solution = ( 50/8 )

→ Concentration of solution = 6.25 %

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