Which of the following changes will likely increase the
solubility of a solid solute but decrease the solubility of a
gaseous solute?
A. Increasing the temperature
B. Increasing the molecular mass of the solute
C. Decreasing the atmospheric pressure
D. Decreasing the concentration
I. Does the solubility of the solute increase or decrease in
each of the following situations?
1. Ice is placed in a glass of cola (solute is CO2 gas).
2. Honey is dissolved in hot water instead of cold water.
3. The pressure of O2 over a solution is increased (solute is O2
gas).
II. Which of the following statements about the dilution of a
solution are true?
The volume of solution remains unchanged.
The amount of solute decreases.
The...
1. How is the temperature dependence of the solubility of a
solid in a liquid exploited to purify solids thorugh
recrystalization?
2. How does temperature dependence of the solubility of a gas in
a liquid affect the amount of oxygen available for fish and other
aquatic animals?
3. How does the pressure dependence of the solubility of a gas
in a liquid account for the bubbling that occours upon opening a
can of soda?
Which of the following statements is generally TRUE?
The solubility of a solid is not dependent on either temperature or pressure.
The solubility of a solid is highly dependent on both pressure and temperature.
The solubility of a solid is highly dependent on pressure.
The solubility of a solid is highly dependent on temperature.
None of the above.
Which of the following factors does not affect membrane permeability?
Temperature
The saturation of hydrocarbon tails in membrane phospholipids
The amount of cholesterol in the membrane
The polarity of membrane phospholipids
Given the following
aqueous reactants, determine if a solid is formed using the
solubility table. If yes, write the compound that is formed.
Aqueous
Reactants
Solid Formed?
(yes or no)
Compound
Formed
Sodium chloride and
Lead (II) acetate
Potassium sulfate and
Strontium iodide
Cesium chloride and
Calcium sulfide
Chromium (III) nitrate
and Sodium phosphate
Magnesium oxide can be
made by heating magnesium metal in the presence of oxygen. When
10.1 g of Mg reacts with 10.5 g of O2, 11.9...
What is a solution called when the concentration of the solute equals its solubility in the solvent?
a) Dilute
b) Saturated
c) Unsaturated
d) Supersaturated
Define the following concepts and provide an exaple for each:
solid-liquid extraction, liquiid-liquid extraction, partition
coefficient, miscible solvents, immiscible solvents.