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Unformatted text preview: HOM E WO R K CHA P T E R 1 K E Y 34. a. 6.022 x 10 23 x 1.05 x 10 2 = b. c. 1.285 x 102 + 1.24 x 103 + 1.879 x 101 d. 1.285 x 102 – 1.24 x 103 e. f. g. 40. Although the preferred SI unit of area is the square meter, land is often measured in the metric system as hectares (ha). One hectare is equal to 10,000 m 2 . In the English system, land is often measured in acres (1 acre = 160 rod 2 ). Use the exact conversions and those given in Exercise 39 to calculate the following. a. 1 ha = ________km 2 b. The area of a 5.5acre plot of land in hectares, square meters, and square kilometers. c. A lot with dimensions 120 ft by 75 ft is to be sold for $6500. What is the price per acre? What is the price per hectare? 48. A children’s pain relief elixir contains 80. mg of acetaminophen per 0.50 teaspoon. The dosage recommended for a child who weighs between 24 and 35 lb is 1.5 teaspoons. What is the range of acetaminophen dosages, expressed in mg acetaminophen/kg body weight, for children who weigh between 24 and 35 lb. acetaminophen/kg body weight, for children who weigh between 24 and 35 lb....
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This note was uploaded on 07/27/2008 for the course CHEM 105A taught by Professor Bau during the Summer '04 term at USC.
 Summer '04
 Bau

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