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Grade 12Organic Chemistry

calculate the osmotic pressure of 5%solution of cane sugar (sucrose) at 1.5C {R=0.082 litre atm K-1mol-1}

Profile image of MD IMRAN KHAN
8 Years agoGrade 12
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1 Answer

Profile image of Arun
8 Years ago
moles sugar = 5 g / 342 g/mol=0.0146 
mass solution = 100 g 
assuming d = 1 g/mL 
volume solution = 100 mL = 0.100 L 
concentration sugar = 0.0146/0.100 =0.146 M 
osmotic pressure = 0.146 x 0.08206 x 274.5 K=3.297 atm

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