What type of intermolecular attractive interaction exists in the pair of methanol and acetone ?
Calculate the molality of ethanol solution in which the mole fraction of water is 0.88.
State Henry’s law. What is the effect of temperature on the solubility of a gas in a liquid ?
State Henry’s law. What is the effect of temperature on the solubility of a gas in a liquid ?
In the following ions:
Mn³⁺, V³⁺, Cr³⁺, Ti⁴⁺
(Atomic no: Mn = 25, V = 23, Cr = 24, Ti = 22)
(a) Which ion is most stable in an aqueous solution?
(b) Which ion is the strongest oxidizing agent?
(c) Which ion is colourless?
(d) Which ion has the highest number of unpaired electrons?
What are colligative properties? Write the colligative property which is used to find the molecular mass of macromolecules.
What is meant by positive deviations from Raoult’s law ? Give an example. What is the sign of H for positive deviation ?
Define the following terms :
(i) Mole fraction (x)
(ii) Molality of a solution (m)
Define the following terms :
(i) Fuel cell
(ii) Limiting molar conductivity