Download Second Semester Extra Review

Honors Chemistry
Second Semester Final Extra Review
Chapter 10 & 11
1. What is meant by elastic collision?
2. Define diffusion. What factors affect rate of diffusion?
3. Convert the following:
a) -156C = ______ K
b) 25 K = _______C
4. What causes gas pressure?
5. Write the formula for the following gas laws and indicate what factor is kept constant in each:.
a) Boyle’s law
b) Charles’ law
c) Gay-Lussac’s law
d) Combined gas law
6. A mixture of gases is at a pressure of 920.3 mmHg, what is the partial pressure of carbon dioxide gas in the
mixture containing oxygen and carbon dioxide if the partial pressure of oxygen is 524.9 mmHg?
7. What is standard temperature and pressure?
8. An oxygen gas cylinder has a volume of 5.6 x 102 L at a pressure of 755 mmHg and 25ºC. Calculate the
moles of the gas.
Chapter 12
1. How many grams of ice can melt if 45.6 kJ of energy is available?
2. How much heat is required to change 24.7 g of water to steam?
3. Given: SO3 (g)  SO2 (g) + 0.5 O2 (g)
H = 80 kJ
List some ways to increase the yield of products.
4. When will the pressure NOT affect an equilibrium system?
Chapter 13
1. Define:
a) Solute
b) Solvent
c) Alloy
2. What is an electrolyte? Give an example.
3. What are the three ways to increase the rate of dissolving?
4. How many grams of potassium chloride is needed to make 500.0 ml of a 0.100 M solution?
5. What is the molarity of 15 g C6H12O6 in 5.00 L of water?
6. How many grams of NaCl is dissolved in 500.g of water to make a 1.25 m solution?
7. How would you increase the solubility of a gas in a liquid?
Chapter 14
1. Write the dissociation equation for aluminum sulfate in water.
2. a) What are the colligative properties?
b) What do they depend on?
c) Determine which of the following has the lowest freezing point?
0.2 m CaCl2
0.5 m KBr
0.7 m Na2SO4
3. What is the freezing point of a solution that contains 0.75 moles of sodium oxide in 700 g of water?
Chapter 15 & 16
1. List all the properties of acids.
2. List all the properties of bases.
3. Define the three definitions of acids?
4. Define the three definitions of bases?
5. a) What does the term “strong” refer to in acids and bases?
b) List the strong acids and bases.
6. Calculate the following:
a) [OH-] = 5.2 x 10-2M, [H+] = ?
b) [H+] = 2.9 x 10-9 M, pH = ?
c) [OH-] = 7.82 x 10-5 M, pH = ?
d) pH = 2.7, [OH-] = ?
Chapter 17
1. What is an endothermic reaction? What is an exothermic reaction?
2. How much heat (in J) is needed to change 95.7 g of water from 25C to 98C?
3. Define:
a) Activation energy
b) temperature
c) heat
4. What factors determine whether a reaction is spontaneous or not?
5. Calculate the Gibb’s free energy if the entropy is 0.555 kJ/mol K and enthalpy is 56.9 kJ/mol at 25C. Is this
reaction spontaneous?
6. What factors affect rate of a reaction?
7. What are the two conditions to have an effective collision?
8. Calculate the ΔH for the following equation using heat of formations:
NH3 + HCl → NH4Cl
9. How does a catalyst increase the rate of a reaction?
10. What state of matter is the entropy the highest?
Chapter 18
1. What is a reversible reaction?
2. Define equilibrium.
3. What two substances do you NOT write in an equilibrium expression?
4. Find the equilibrium constant for 2 CO + O2
2 CO2 if the concentration of CO is 0.500M, O2 is 1.50M
and CO2 is 0.250M.
5. Calculate the Ka of HF if [HF] = 0.500 M and the pOH is 8.92.
6. Calculate the pH of a 0.200 M HSO4-1 with a Ka of 1.20 x 10-7.
7. Calculate the Ksp of Fe2O3 which has a solubility of 1.30 g/100g H2O.
8. Calculate the molar solubility of aluminum chloride if the Ksp is 4.7 x 10-8.
Chapter 20 & 21
1. What are organic compounds?
2. What is the general formula for the following. Give an example of each.
a) Alkane
b) Alkene
c) Alkyne
3. What is the functional group of each of the following:
a) alcohol
b) aldehyde
c) ketone
d) carboxylic acid
e) ether
f) ester
g) alky halides
h) amine
4. How do you name each of the above organic compounds?
5. What is a benzene ring?
6. What are the monomers of proteins called?