exam1chem30a

exam1chem30a - Exam #1 Chem 30A Spring 2000 Name_ On all...

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Chem 30A Name_______________________ Spring 2000 On all problems, show work for full credit. 1. (8 pts) Convert the following measurements to three significant figures and express the number in the proper scientific notation format. a. 100,900 cm 1.01 x 10 5 d. 209.98 x 10 -7 g ___ 2.10 x 10 -5 ______ b. 0.0007789 cm ______ 7.79 x 10 -4 ___ e. 8 L ___________ 8.00 _________ 2. (8 pts) If a bullet is traveling 897 miles per hour, how fast is it traveling in meters per minute? Use the conversion factors provided below and express the answer in the proper scientific notation format. 2.54 cm = 1in 1 m = 39.4 in 5,280 feet = 1 mile 12 inches = 1 foot 60 min = 1 hour 2.40 x 10 4 m/min 3. (8 pts) Write the number of significant figures in the following measurements. a. 01.010 x 10 -8 hm ____ 4 ________ c. 1,000,600 cm ______ 5 ________ b. 0.05700 m ________ 4 __________ d. 20.000 m __________ 5 _______ 4. (8 pts) Execute the following calculations keeping in mind significant figures. a. 7228.00 cm + 200 cm =
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This note was uploaded on 09/02/2011 for the course CHEM 30a taught by Professor Harrison during the Spring '11 term at West Valley.

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exam1chem30a - Exam #1 Chem 30A Spring 2000 Name_ On all...

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