A solution of 45 g of sucrose (molar mass 342 g/mol) in 1 kg of water may be approximated as an ideal dilute solution. Calculate the following quantities when the pressure is 1 atm (1.013 bar): a) The freezing point in degrees Celsius. b) The boiling point in degrees Celsius. c) The vapour pressure at 20˚C (in bar).
A solution of 45 g of sucrose (molar mass 342 g/mol) in 1 kg of water may be approximated as an ideal dilute solution. Calculate the following quantities when the pressure is 1 atm (1.013 bar):
a) The freezing point in degrees Celsius.
b) The boiling point in degrees Celsius.
c) The vapour pressure at 20˚C (in bar).
d) The osmotic pressure (in bar) at 20˚C relative to pure water.
Data for water: At 1 atm water freezes at 0˚C and boils at 100˚C. Vapour pressure P = 0.02340 bar at 20˚C. Kf= 1.86 K kg/mol , and Kb = 0.51 K kg/mol. Molar mass of water = 18.01 g/mol. The density of solution can be taken as exactly 1 g/mL.
e) What is the osmotic pressure relative to pure water, if 20.00 g of glucose (molar mass 180 g mol-1) is added to the above-mentioned solution of sucrose
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