Solutions [INCOMPLETE]

In Progress

What is the natural state of chloroform? (solid / liquid / gas)

liquid

What is the natural state of camphor? (solid / liquid / gas)

solid

A 35% (v/v) solution of ethylene glycol, an antifreeze, is used in cars for cooling the engine. At this concentration the antifreeze lowers the freezing point of water to what temperature?

-17.6 degrees celsius

Out of mass %, ppm, mole fraction, molarity and molality, which one is a function of temperature (while the others are not)?

Molarity is a function of temperature as volume depends on temperature.

naphthalene and anthracene dissolve readily in _______ and not in _______.

(water / benzene)

naphthalene and anthracene dissolve readily in benzene and not in water.

polar solutes dissolve in ________ solvents.

(polar / nonpolar)

polar

nonpolar solutes dissolve in __________ solvents.

(polar / nonpolar)

nonpolar

What 3 things affect the solubility of a solute in a solvent?

1. nature of solute and solvent

2. temperature

3. pressure

What is Le Chateliers Principle?

Le Chatelier's principle states that if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change to reestablish an equilibrium.

If in a nearly saturated solution, the dissolution process is endothermic (\Delta_{sol} H > 0), the solubility should ________ with rise in temperature and if it is exothermic (\Delta_{sol} H < 0) the solubility should _________.

(increase / decrease)

If in a nearly saturated solution, the dissolution process is endothermic (\Delta_{sol} H > 0), the solubility should increase with rise in temperature and if it is exothermic (\Delta_{sol} H < 0) the solubility should decrease.

The solubility of gases in liquids ________ with increase in pressure.

(increases / decreases)

increases

The solubility of gases in liquids _________ with increase in temperature.

(increases / decreases)

decreases