PERCENT COMPOSITION 2
Determine the percent composition of each element in the following compounds.
1. rubidium chloride
2. barium phosphide
3. tin (IV) fluoride
4. cupric bromide
5. aluminum sulfite
6. ammonia (NH3)
7. calcium phosphate
Unit 9 Part 1: Formula Mass, Percent Composition
FORMULA MASS 1
1. Determine the formula mass of the following compounds.
2. Determine the formula mass of the following compounds
Unit 9 Part 2: Empirical and Molecular Formulas
EMPERICAL FORMULA ASSIGNMENT 1
1. An oxide of arsenic contains 3.26 g of arsenic and 1.04 g of oxygen. What is the empirical formula for
2. A sample of sodium oxide weighing 1
Lewis Structures Lab
Draw Lewis Structures for the following molecules. Construct the molecules using the key provided. Have these checked by
your teacher. Predict molecular shape, bond angle and if the molecule is polar or nonpolar.
Black sphere =
Silver is recovered from silver ore by converting the ore into silver sulfate which is then
Phosphoric acid is produced at a fertilizer plant.
Bromine is commercially produced fro
Complete the chemical equations:
_ C3H8 + _ O2 _ CO2 + _ H2O
_NaCl _ Na + _Cl2
_ N2 + _ H2 _NH3
_ H2 + _ O2 _ H2O
Copper ore is decomposed to remove the copper metal
Gasoline is mixed with air in the carburetor and then exploded by a spark in the c
Identify the most likely reaction type and predict the products. If no reaction will occur, then state
No reaction. Balance the equation.
1. _Al + _O2
2. _BaSO4 + _MgCl2
3. _ Zn + _H2SO4
5. _Ba + _S
6. _Ca + _O2