Honors Chem
Chapter 1 Exam Review
Name________________
Please remember to put units on your answers, round to the correct number of
sig figs, and circle your answer to any problems. Use scrap paper to show work
for credit.
1. Round your answers to the following to the correct # of sig figs.
a) 9.767 + 3.45 + 0.73 =
b) (4.0)(3170) =
c) (456.0)/(1.8) =
2. 192.oC = _________ k
63.6 k = ____________oC
3. The boiling point of liquid helium is -269°C. What is this temperature in kelvin?
4. The temperature required to melt NaCl is 801 K. What is this temperature in
Celsius?
5. Which of the following is the largest volume?
7 pL
a.
8 nL
b.
5 mL
c.
2 mL
d.
-1 L
e.
6. Wirtz, late for work, gets busted on Rt 302 doing 67 miles/hr. Convert this
speed to feet/min.
7. A rectangular box has dimensions of 20.0 cm x 15.0 cm x 8.00 cm. Calculate
the volume of the box in liters.
8. If the fuel efficiency of an automobile is 22 miles per gallon, what is its fuel
efficiency in kilometers per liter? (1 km = 0.621 mile, 1.000 L = 1.057 quarts, 4
quarts = 1 gallon)
9. The density of acetic acid is 1.05 g/mL. What is the volume of 275 g of acetic
acid?
10. When 12 copper pennies are submerged in water, the pennies displace 4.13
cm3 of water. If the combined mass of the pennies is 36.93 g, what is the density
of copper?
11. You have a 100 mL graduated cylinder with 44.0 mL of water in it. If you
drop a 19.0 g chunk of gold (density = 19.3 g/cm3) into the cylinder, to what
volume will the water rise?
12. You can identify a metal by carefully determining its density. A 0.608 g piece
of an unknown metal is 0.367 cm long, 0.552 cm wide, and 0.250 cm thick. What
is the identity of the element?
a. silver, 10.5 g/cm3
b. iridium, 22.4 g/cm3
c. platinum, 21.4 g/cm3
d. palladium 12.0 g/cm3
e. none of the above
13. A cube of iron has a mass of 15.37 g. If each side of the cube has
dimensions of 1.25 cm, what is the density of iron?
14. If liquid bromine has a density of 3.12 g/cm3, find the grams in 120. L.
Useful conversions and formula:
1 miles = 1.6 km
Rectangular solid v = l x w x h
Cylinder v = pi (r2) h
1 kg = 2.2 lb
1 miles = 5280 feet
1 inch = 2.54 cm