At 70 C the vapor pressure of pure water is 31 kPa. Which of the follo – McqOptions

MCQOPTIONS

1.	At 70 C the vapor pressure of pure water is 31 kPa. Which of the following is most likely the vapor pressure of a 2.0 molal aq. glucose solution at 70 C?
A.	30.001 kPa
B.	29.915 kPa
C.	28.226 kPa
D.	32.392 kPa
Answer» C. 28.226 kPa

Discussion

No Comment Found

Related MCQs

Which is the most appropriate method for determining the molar masses of biomolecules?
What is a necessary condition for osmosis to take place?
A cell with lots of salt inside it is placed in a vessel containing just water. Which process takes place?
A pair of solution bears the same osmotic pressure. What is this pair of solutions called?
What are colligative properties useful for?
Pure CS2 melts at -112 C. 228 grams of propylene glycol crystals is mixed with 500 grams of CS2. If kf of CS2 = -3.83 K kg mol-1 what is the depression in freezing point?
Boiling point of chloroform is 61 C. After addition of 5.0 g of a non-volatile solute to 20 g chloroform boils at 64.63 C. If kb = 3.63 K kg mol-1, what is the molecular weight of the solute?
117 g of NaCl is added to 222 g of water in a saucepan. At what does temperature does water boil at 101.325 kPa? Ebullioscopy constant for water = 0.52 K kg mol-1 and b.p. = 100 C
At 70 C the vapor pressure of pure water is 31 kPa. Which of the following is most likely the vapor pressure of a 2.0 molal aq. glucose solution at 70 C?
Why is raising of viscosity of a solution after addition of solute, not considered to be a colligative property?