Chemistry Chapter 1 Extra problem solutions

Chemistry Chapter 1 Extra problem solutions - Chapter One...

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Chapter One Extra Practice Solutions 1. Scientific notation to “ordinary” numbers: a. 0.005082 b. 97400 c. 0.07874 d. 0.1507 2. Standard scientific notation a. 1.00 x 10 -3 b. 3.78 x 10 3 c. 1.00 x 10 4 d. 1.00 x 10 -5 3. Calculations a. 1.06 x 10 -6 b. 1.5 x 10 25 c. 7.36 x 10 -9 d. 6.82 x 10 5 e. 2.54 x 10 8 4. Significant figures a. 4 all non-zero digits are significant b. 3 leading zeros are not significant c. 3 x 10 -3 is not significant d. 4 the decimal makes all 3 zeros significant\ e. 3 there is no decimal, so the ending zero is not significant; embedded zeros are always significant f. 2 there is no decimal, so the ending zero is not significant 5. 6.
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7. Unit conversions a. b. c. d. 6.783 kg 1 1000 g 1 kg 1 lb 453.6 g = 14.95 lb e. 2.785 oz 1 1 lb 16 oz 453.6 g 1 lb = 78.95 g f. 8.
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This note was uploaded on 03/17/2009 for the course CHEM 1211 taught by Professor Atwood during the Fall '07 term at University of Georgia Athens.

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Chemistry Chapter 1 Extra problem solutions - Chapter One...

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