MEDIUM
12th ICSE
IMPORTANT
Earn 100

The vapour pressure of a solution of urea is 736.2 mm at 100°C. Calculate the osmotic pressure of this solution at 15°C.

Important Questions on Solutions

MEDIUM
12th ICSE
IMPORTANT
The boiling point of a glucose solution containing 12 g of glucose in 100 g of water is 100.34°C. Calculate the molal elevation constant of water. Boiling point of water is 100°C.
MEDIUM
12th ICSE
IMPORTANT
A mixture of 1 g naphthalene (Mol. mass 128) and 10 g camphor melts at 147°C whereas pure camphor melts at 177.5°C. What is cryoscopic constant (Kf) of camphor ?
MEDIUM
12th ICSE
IMPORTANT
What is meant by abnormal molecular mass? Illustrate it with an example.
MEDIUM
12th ICSE
IMPORTANT
What is the cause of obtaining abnormal molecular masses?
MEDIUM
12th ICSE
IMPORTANT
What is van't Hoff factor? What type of values can it have if in solution the solute molecules undergo association?
MEDIUM
12th ICSE
IMPORTANT
What is van't Hoff factor? What type of values can it have if in solution the solute molecules undergo dissociation?
MEDIUM
12th ICSE
IMPORTANT
What is van't Hoff factor? How does it modify the equation for the elevation of boiling point?
MEDIUM
12th ICSE
IMPORTANT
Assuming complete dissociation, calculate the expected freezing point of a solution prepared by dissolving 6.00 g of Glauber's salt, Na2SO4.10H2O in 0.100 kg of water. (Given: Kf for water =1.86 K kg mol-1, atomic masses : Na=23, S=32, O=16, H=1 amu)