What is the osmotic pressure of a solution containing 25.7g of sugar(C12H22O11) in one liter of solution at..?
Answer:
Molecular mass of sugar = 12(12) + 22(1) + 11(16) = 144+22+176 = 342 grams/mole
So, the number of moles of sugar added = 25.7/342 = 0.075 moles
So, the molarity = 0.075/1 = 0.075 M
There is no dissociation of sucrose in solution. So we have the van't Hoff factor equal to 1.
Substituting in formula,
π = iMRT
π = (1)(0.075)(0.0821)(293)
π = 1.8041 atm.
The answers post by the user, for information only, FunQA.com does not guarantee the right.
More Questions and Answers: