Name: ______Period: ______
MEASUREMENT TEST – SECTION B REVIEW
Useyour knowledge of scientific notation to convert or calculate the following problems (report answers to the correct number of significant figures):
- 10987000 ______3. 0.00000340 ______
- 89000______4. 0.000234______
5. Calculate (2.098 x 1021) X (2.40 x 10-3)
6. Calculate (8.0 x 104) ÷ (7.034 x 108)
7. The density of an unknown liquid, is 2.76 g/mL. Determine the weight, in ounces, of 1.16 x 103L of the liquid. You must use dimensional analysis to solve this problem. 1 oz = 28.35 g.
8. A marathon runner’s average stride during a race is 2.8 m/stride. If the marathon is 26.2 miles long, how many strides does the runner make during the race. (1609 m = 1 mile). Answer should be in scientific notation.
Identify 2 conversion factors based upon the following equalities:
1)454 g = 1 lb
2)1 ft = 0.3048 m
Use dimensional analysis to complete the following conversions:
1)By law, any bottle of vinegar sold in the US must contain 5% acetic acid (This means there must be 5 mL of acetic acid in 100 mL of vinegar). If a manufacturer produces 500 kL of vinegar in a day, how many grams of acetic acid must she use to produce her vinegar legally. (The density of acetic acid is 1.16 g/mL).
2) The oldest living person in the world is 123 yrs. old. How many days has this person been alive. How many seconds?
3)Not being able to find the 0.50 inch bolts the blueprints called for, the engineer purchased 13mm bolts instead. How much different in length were the 13 mm bolts than the 0.5 inch bolts? (2.54 cm = 1 inch)
4)RECALL YOUR METRIC CONVERSIONS
L = ______mL100cm = ______m______g = 1 kg
1 cm = ______mm1cm3 = ______mL1000 km = ______m
5)The fastest street legal car in the world is the Hennessey Venom GT at 270 miles per hour. How fast is this car going in m/s when at top speed?
Use your knowledge of the density, mass and volume to solve the following problems.
1)A block of a metal was measured to have the following dimensions: 20cm x 15 cm x 4 cm. If the block has a density of 11.6 g/mL, what is the weight of the block in grams?
2)A graduated cylinder contains 31.0 mL of water. A 40.0 g zinc cylinder is added to the water. If the density of the zinc is 3.7 g/mL, what is the new level of water in the graduated cylinder?
3)A metallurgist created a new alloy that had a volume of 50.0 mL which weighed 670 g. Solve for the density of a new alloy.
4)A graduated cylinder contains 63.9 mL of Hg. If Hg has a known density of 13.56 g/cm3, what would you expect the mass of the liquid mercury to be in grams?
Use your knowledge of mole conversions to answer the following questions:
1. What is Avogadro’s Number: ______
2. What are the two possible conversion factors for Avogadro’s number and the mole.
2. Determine the number of moles of phosphorous in 1.876 x 1024 atoms of phosphorus.
3. How many gallium atoms are to be found in 0.873 moles of gallium?
4. Phil and his friends, have a bicycle shop that has exactly 64 bicycles. How many moles of bicycles does Gunner have?
5. Kendra learns that there are 0.564 moles of flowers petals used annually to make the floats in the Rose Bowl parade in Pasadena California. How many flower petals were used to make the floats?