Spring 2015 Honors Chemistry Exam Review
How are diffusion and effusion similar? Different?
List the five principles of kinetic gas theory.
How is a real gas different from an ideal gas?
A balloon is 2.5 L at 1.2 atm and will break at 5.7L. At what pressure will it break?
A container starts at .9 atm and 20C. What is the pressure at -30C?
A balloon is 2.5L at 20C. What will its volume be at 75C?
A balloon is 1.7L at 15C and 1.1 atm. What is the volume at STP?
A balloon has 2.2 moles of helium at STP. What is its volume?
There is a 57.8g sample of oxygen. What is its volume at STP?
How many moles of hydrogen are in a sample 41L at 39C and 2.3 atm?
Partial Pressures & examples
Phase diagram – effects of temp and pressure on phase
Energy changes associated with heating and phase changes
Define Molar, Molal, and Normal.
What is the molarity and normality of 78 g of H3PO4 dissolved in 2.3 L of solution?
What is the molality of 56 g of NaCl in 786 mL of water?
If 30 mL of 5 M HCL is mixed with 70 mL of water, what is the new concentration?
Define dilute, concentrate, saturated, and super saturated
Define solute, solvent, solution
Compare solutions, colloids, and suspensions
Explain “like dissolves like”
What factors impact rate of solution
Define heat of solution
Calculate heat of solution – a 200 mL sample of water goes from 19.1 C to 22.3 C when 46 g KCl is dissolved.
Contrast hydrate and anhydrous
Explain impacts of heat and pressure on gases and solids in solutions
How many moles of NaCl are in 500 ml of 2 M NaCl?
How many grams of Fe(NO3)3 are needed to make 3 L of 4 M Fe(NO3)3?
Explain how to make 3.7 L of 6 M HCl.
What is the new concentration if 200 mL of water is added to 100 mL of 6M HCl?
How many mL of 3 M HCl are needed to react with 75 mL of 3 M Mg(OH)2?
How many moles of particles (ions) will be formed when 3 moles of FeCl3 dissociates?
Explain how a compound can be very soluble, but a weak electrolyte.
If 75 g C6H12O6 is added to 300 mL of water, what will the new freezing point be? (Kf = -1.86C/m)
If 225 g Na2SO4 is added to 400 mL of water, what will the new freezing point be? (Kf = -1.86C/m)
What is the concentration of Fe(OH)2 if 40 ml of 0.1 M HCl was needed to react with 20 ml of Fe(OH)2?
What is specific heat? What is the specific value for water?
What is the specific heat of a 70 g metal block if the block starts at 90 C and is put into a cup of 100 ml water
and the temperature goes from 17.2 C to 21.9 C.
Calculate the Heat of Formation – problem #3 page 524.
Define enthalpy, entropy, and free energy.
What is the relationship between enthalpy, entropy, and free energy?
How are activation energy and activated complex related?
What two things can happen to an activated complex?
Explain the Collision Theory.
Name the four factors of reaction rate we can control and explain how/why they impact reaction rate.
Draw energy diagrams for both an exothermic and endothermic reactions. Label E, E’, Ea, Ea’, and where the
activated complex would exist.
Write a possible reaction mechanism for 2H2 + O2 -> 2H2O
What is the Arrhenius definition of an acid and a base?
What is the Bronsted/Lowery definition of an acid and a base?
What is the pH of .5 M H2SO4?
What is the pH of .007 M Fe(OH)3?
Label the acid/base pairs in the following reaction
H3O+ + NH3 -> NH4+ + H2O
Name the following and give a pH range
NaOH
HBr
Mg(OH)2
H3PO4
Hydrosulfuric Acid
Aluminum Hydroxide
Write formulas for the following and give a pH range
Sulfurous Acid
Cesium Hydroxide
How does limestone help prevent the acidification of lakes?
Name, explain, and give an example of each of the four reaction types
Write a word equation for the following equations
2H2 + O2 -> 2H2O
NaHCO3 + HCl -> NaCl + CO2 + H2O
Label the type of reaction and balance the following:
Mg + H2O -> Mg(OH)2 + H2
FeCl3 + Mg(OH)2 -> Fe(OH)3 + MgCl2
H2SO4 + HI -> H2S + I2 + H2O
H2O2 – H2O + O2
Use the activity series (pg. 266) to determine if these reactions happen, if there is something needed, and what
the products would be
Ca + H2O ->
Cr + H2O ->
Cu + H2O ->
Na + FeCl3 ->
Cu + FeCl3 ->
For the following reactions – 1) identify the type of reaction, 2) balance the reaction, 3) determine phases of
reactants and product, then write the 4) ionic and 5) net ionic equations.
(NH4)3PO4 + FeCl2 -> NH4Cl +
Fe3(PO4)2
Zn + H3PO4 -> Zn3(PO4)2 + H2
Write the complete reaction using heat to decompose CuCO3 into CuO and CO2
If 78 g NaHCO3 is used in the reaction of NaHCO3 + HCl -> NaCl + CO2 + H2O, how much of each product
will be made?
If 18 g of Li reacts with 500 g water, how much LiOH and H2 will be produced?
If 102 g Fe and 57 L Cl2 are used, which is the limiting reagent for the following reaction?
What is the percent yield if 30 g Mg makes 42 g MgO?
Complete the following organics table
C4H7COOH
2 octanol
CH3CH2OCH3
Pentanal
C5H10O
1,2 dibromo hexane
CH3CHOHCH2CHOHCH2CH2CH2CH3
3 heptanone
CH3CH2CCl2CH2CHBrCH2CH2CH3
2 decyl alcohol