General Chemistry: Media Enhanced Edition, 8th Edition

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Names: _____ KEY ___________________ CHEM 130: Disc. 215 GSI: Lauren Goodrich ____________________________ ____________________________ Quiz 1 1. Determine the number of significant figures in the following quantities. Place you answers in the box provided. (4 points) a. 6.014 oz b. 7.4930 kg c. 0.0032 L a. 4 b. 5 c. 2 d. 3 d. 4.23E-4 g 2. How many miles are in 2.34 yards. Use dimensional analysis and report the answer to the correct number of significant figures. Show all work. (2 points) 1.33E-3 miles 3. A rectangular box has a volume of 22.0cm 3 . The length of the is 5.1cm and the width 2.2cm. a. What is the height of the rectangle? Report your answer to the correct number of sig figs.
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Unformatted text preview: (1 point) 2.0cm b. Is volume an intensive of extensive property of matter? Circle the correct answer. (1 point) 4. Complete the following arithmetic and report the answer to the correct number of significant figures. (2 points) (78.1563 / 4.134) + 2.123 21.03 5. Formic acid, CH 2 O 2 , is a convenient source of small quantities of carbon monoxide, CO(g). CH 2 O 2 (l) 2H 2 0(l) + CO(g) If you collect 3.51g of water from 5.52mL of formic acid, what is the mass of the CO (g) produced. The density of formic acid is 1.22g/mL. Show all work and report the answer to the correct number of significant figures. (4 points) 3.22g CO...
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This note was uploaded on 01/28/2009 for the course CHEM 130 taught by Professor Jadwigasipowska during the Fall '07 term at University of Michigan.

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Quiz1+215+KEY[1] - (1 point) 2.0cm b. Is volume an...

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