What is the osmotic pressure of a solution containing 25.7g of sugar (c12H22O11) in one liter of solution a?
i need the answer in kPa form
Answer:
Molar mass C12H22O11 = 342 g/mol
moles C12H22O11 = 25.7 / 342 =0.0751
T = 25 + 273 = 298 K
osmotic pressure = nRT / V = 0.0751 x 0.0821 x 298 / 1 = 1.84 atm
1 atm = 101.325 kPa
1.84 x 101.325 = 186.4 kPa
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