Q.

Osmotic pressure of a sugar solution at 24oC is 2.5 atmospheres. Determine the concentration of the solution in gram mole per litre.

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0.0821 moles/litres

1.082 moles/litres

0.1025 moles/litres

0.0827 moles/litres

answer is C.

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Detailed Solution

Here it is given that π=2.5 atm, T=24+273=297KS=0.0821 lit. atm. K−1 mol−1, C=?We know that π=CSTor C=πST=2.50.0821×297=0.1025 moles/litre

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