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Unformatted text preview: . 9.8 cm to millimeters
d. 50 mi/h to m/s b. 170 mm to centimeters c. 325 mL to liters
e. 20 GJ to kilojoules 6. Carry out the following calculation and report the answer to the correct number of significant figures.
(32.107 – 28.224)
7. The melting point of iron is 1540°C. What is this temperature in degrees Fahrenheit?
8. To determine the density of a piece of metal, a student finds its mass to be 13.62 g. The metal is placed
into a flask that can hold exactly 25.00 mL. The student finds that 19.26 g of water is required to fill the
flask. Given that the density of water is 0.9970 g/mL, what is the density of the metal?
9. The density of lead is 11.4 g/cm 3 . What is the mass of a lead brick with dimensions 2.0 in by 2.0 cm by
10. What volume does 1.00 lb of gold occupy at 20°C? The density of gold is 19.3 g/cm3 at 20°C.
11. If gasoline costs $1.21 per gallon, compare the expense of driving exactly 10,000 miles in an old
"dinosaur" that gets 12 mi per gallon to that of a new compact car that gets 12 km...
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This note was uploaded on 09/15/2009 for the course CHEM 102 taught by Professor Bastos during the Spring '08 term at Adelphi.
- Spring '08