1. CHEMISTRY - FINAL REVIEW

2. WARM UP:
What are some good ideas of things to write on your cheat sheet?

3. UNIT 1: WRITING CHEMICAL FORMULAS
Ammonium Sulfide
Lead (II) Phosphate

4. UNIT 1: NAMING COMPOUNDS
NiI2
FeCrO4

5. UNIT 1: MOLAR MASS/CHART MASS
H2SO4

6. UNIT 1: PERCENT COMPOSITION
Determine the empirical formula using the following data:
C: 66.6%
H: 11.2%
O: 22.2%
Then… If the molar mass of your compound is g/mole, what is the molecular formula of the compound?

7. UNIT 2: REACTION TYPES Synthesis Decomposition Single Displacement
Double Displacement
Combustion

8. UNIT 2: WRITING AND BALANCING CHEMICAL REACTIONS
Phosphoric Acid (H3PO4) reacts to produce hydrogen gas, oxygen gas, and phosphorus solid. Write and balance the chemical reaction.

9. UNIT 3: MEASUREMENT _________ cm ______________ mL
Read and record the following two values
_________ cm ______________ mL

10. UNIT 3: SIG FIG RULES All non-zero digits are significant
Trailing zeros are significant if a decimal is present
Zeros that are “sandwiched” in between two significant digits are always significant
Leading zeros (or placeholder zeros) are never significant
How many sig figs does have?

11. UNIT 3: MULTIPLICATION AND DIVISION - SIG FIGS
Do the math operation in your calculator.
Identify the number sig figs in each value.
Round to the least number of significant digits.
1.00 x x 25 =

12. UNIT 3: ADDITION AND SUBTRACTION - SIG FIGS
Line up decimals
Draw a wall at estimated digits
Round all measurements at the wall
Perform calculation =

13. UNIT 4: STOICHIOMETRY @ STP
Mass - Mass :
Coefficient Mol Want
Molar Mass Want (g)
Given (g)
1 Mol Given
= _____ g Want
Molar Mass Given (g)
Coefficient Mol Given
1 Mol Want

14. UNIT 4: STOICHIOMETRY @ STP
Mass - Volume:
Coefficient Mol Want
22.4 L Want
Given (g)
1 Mol Given
= _____ L Want
Molar Mass Given (g)
Coefficient Mol Given
1 Mol Want

15. UNIT 4: STOICHIOMETRY @ STP
Volume - Mass:
Coefficient Mol Want
Molar Mass Want (g)
Given (L)
1 Mol Given
= _____ (g) Want
22.4 L Given
Coefficient Mol Given
1 Mol Want

16. UNIT 4: STOICHIOMETRY @ STP
Volume - Volume:
Coefficient Mol Want
22.4 L Want
Given (L)
1 Mol Given
= _____ L Want
22.4 L Given
Coefficient Mol Given
1 Mol Want

17. UNIT 4: PERCENT YIELD
A reaction with a calculated yield of 9.23 g produced 7.89 g of product. What is the percent yield for this reaction?
Percent Yield = Actual yield / Theoretical yield x 100%

18. UNIT 5: COMBINED GAS LAW
A 32.0 liter sample of carbon dioxide gas is at STP. If the pressure is changed to 150.2Kpa and the volume is changed to 22.4 liters, what is the new temperature of the gas?
P1V1 = P2V2
T T2

19. UNIT 5: BOYLES, CHARLES & GAY LUSSAC’s LAWSV1 T1 = V2 T2 P1 T1 = P2 T2
P1V1 =
P2V2
Determine the pressure change when a constant volume of gas at atm is heated from 20.0 °C to 30.0 °C.

20. UNIT 5: IDEAL GAS LAW PV = nRT R = 0.0821 atm L / mol K
I have 7.70 moles of a gas at a pressure of atm and at a temperature of 56 deg C. What is the volume of the container that the gas is in?
R = atm L / mol K
R = kPa L / mol K
R = Torr L / mol K

21. UNIT 5: STOICHIOMETRY NOT @ STP
What volume of hydrogen gas at torr and 500. °C would be needed to form 112 g Fe?
1Fe2O H2 → 2 Fe H2O

22. UNIT 5: GRAHAM’S LAW
At a certain temperature, molecules of fluorine, F2, gas travel at 0.300Km/s. What is the speed of CH2O, gas molecules under the same conditions?

23. COME IN AFTER SCHOOL FOR EXTRA HELP