Practice Test Ch 12 & 13
Mole to Mole:
How many mole of bromine are needed to react with 1.21mols of lithium to produce lithium
bromide?
Li + Br2  LiBr
Mass to Mole:
According to the following equation, how many mols of carbon are produced by the complete
decomposition of 50.0g of sucrose?
C12H22O11  H2O + C
Mass to Mass:
In the equation below, how many grams of nitrogen monoxide are produced from the reaction of
72g of copper with excess nitric acid?
Cu + HNO3  Cu(NO3)2
+ H2O + NO
Limiting Reagent:
Which is the Limiting Reagent? 15mols O2
ZnS +
O2  ZnO
or 21mols of ZnS
+ SO2
Volume to Mass:
How many grams of NO will be produced from 86.4L of O2 at STP?
N2 + O2  NO
Lab Question:
Copper reacts with aqueous silver nitrate to produce silver metal. The following data was
collected:
Initial mass of Copper: 1.76 g
Final mass of Copper: 1.12g
Mass of filter paper 0.91g
Mass of filter paper plus Silver 3.12g
a. Write a the balanced equation of the reaction.
b. the mass of the copper reacted?
c. Calculate the theoretical yield of silver.
d. what is the actual mass of silver produced
e. Calculate the percent Yeild.
Convertions:
A. 1.31 ATM to kPa
B. 890mm Mg to ATM
C. 567kPa to ATM
Word Bank monoclinic, triclinic, rhombohedral, cubic, orthorhohedral, hexagonal, tetragonal:
place next to the correct crystal system.
What is the boiling Point of Ethanol at SP? ___________
What is the pressure if ethanoic acid is boiling at 100oC?_________
What is the temperature of propanone if the boiling point has the pressure of 50kPa?_________
What chemical is the most Volatile? ___________
Cooling Curve stearic acid: Where do phase changes occur? What is the freezing point of the
Substance? The third line represents what phase? Where does condensation occur?
What is the Triple Point temp?____________
What is the Triple Point pressure?____________
What is the Critical Temperature?____________
What is the Critical Pressure?___________
What happens at 1atm and -78.5 __________
Liquid, gas or Solid:
0oC and 50atm:_________
-100oC and 1ATM:__________
Multiple Choice Short Answers:
1. The higher the temperature
a. the faster the molecules move
b. the slower the molecules move.
c. the stronger the attractions between the molecules.
d. the closer the molecules are the each other.
2. If someone boils water on top of a mountain, the boiling point of the water is
a. equal to 0oC
b. equal to 100oC
c. greater than 100oc
d. between 0oc and 100oc
3. What is STP? Be Specific
4. T or F: A substance in the solid state has a definite volume and a definite shape.
5. What are the three components of the Kinetic Theory?
6. What is a Unit Cell in a crystal?
7. What are Amorphous substances?
8. What is Sublimation?