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what is the volume of water and ethanol in 200 ml of 30.0%aqueous solution of ethanol

Sagot :

Indrawboyidn

The volume of water and ethanol in 200 ml solution = 140 ml and 60 ml

Further explanation  

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight / volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.  

There are several concentration units in percentages that can be used:  

Percent Volume (% V / V), total volume (ml) of solute in 100 ml of solution.

[tex]\rm \%solute=\dfrac{solute~volume}{solution~volume}\times 100\%[/tex]

30.0% aqueous solution of ethanol

means : 30% is ethanol and 70% is water

For 200 ml of solution :

[tex]\rm ethanol=30\%\times 200~ml=\boxed{\bold{60~ml}}\\\\water=70\%\times 200~ml=\boxed{\bold{140~ml}}[/tex]

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