Supplemental Problem Set #1
1. Complete the following conversions using the appropriate number of significant
figures. Hint: For metric conversions always use the following roadmap:
old unit  base unit 
 
a. 4.57 inches to meters
b. 7.8 L to µL
c. 0.0000215 gallons to ml
d. 4.00 mile3 to cm3
e. 9.050 lbs. to mg
f. 5.5 days to seconds
g. 75°F to K
2. The average African humming bird can flap its wings 15 times per second. How
many flaps could a humming bird flap if a humming bird could flap 2.5 hours nonstop?
3. The average respiration rate of a newborn infant is about 30 breaths per minute.
The average volume of each breath is 125 ml. How many liters of air does a
newborn breath in 3.0 weeks.
4. An unknown solid has a mass of 27.35 g. A graduated cylinder is filled with 50.0 ml
of water and the solid is then added. The final volume in the cylinder is 74.3 ml.
What is the density of the unknown solid?
5. A liquid has a density of 3.54 g/ml. What is the volume of 75.0 g of this liquid?
6. Write the complete electron configuration and electron diagram for oxygen. Write
the Lewis structure for oxygen.
7. Write the complete electron configuration and electron diagram for tin. Write the
Lewis structure for tin.
8. a) Calculate the average relative atomic weight for unknown element R given the
following data:
mass
relative abundance
112 R
111.9872
amu
64.23%
48
113
48
R
112.9787 amu
28.73%
114
48
R
113.9929 amu
7.04%
b) Determine the number of protons, neutrons, and electrons in 112R and identify R.
9. Give a complete and detailed description of the three states of matter.
10. Name the following compounds:
a) Na2SO3
b) K2CO3
c) Li3PO4
d) Fe(NO3)3
11. Determine formulas from the following names:
a) phosphorus pentachloride
b) copper(II) bromide
c) iron (III) phosphate
d) mercury (II) nitrate
e) dinitrogen tetraoxide
12. Write an equation for the complete ionization of the following compounds:
a) sulfuric acid
b) nitric acid
c) calcium hydroxide
d) aluminum sulfate
e) phosphoric acid