HW208 - CHEM 1406 0 " " 1) * Homework #2 due:...

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Unformatted text preview: CHEM 1406 0 " " 1) * Homework #2 due: Mon. 2/4 or Tues. 2/5 1 The number of significant figures in the measurement of 45.030 mm is A) none. B) three. C) four. D) five. E) six. 2) Which of the following is the smallest unit? A) gram B) milligram C) kilogram D) decigram E) microgram 3) Accordi the United States Food and Drug Administration, the recommended daily requirement ng to of protein is 44 g. This is _____ of protein. A) 1248.5 oz B) 320 000 oz C) 1.6 oz D) 0.0605 oz E) 150 000 oz 4) Which of the following setups would convert centimeters to feet? A) cm B) 2.54 in. 1 cm 1 ft 12 in. cm C) 2.54 cm 1 in. 12 in. 1 ft cm D) 1 in. 2.54 cm 1 ft 12 in. cm E) 1 in. 2.54 cm 12 in. 1 ft cm 5) 2.54 cm 1 in. 1 ft 12 in. A patient has a temperature of 38.5C. What is the temperature in degrees Fahrenheit? A) 70.5F B) 311F C) 126.95F D) 101.3F E) 11.7F 6) How many calories of heat are required to raise the temperature of a 35.0 g sample of iron from 25C to 35C? Iron has a specific heat of 0.106 cal/g C. A) 37 cal B) 1.1 cal C) 3.7 cal D) 93 cal E) 130 cal 7) The fusion for water is 80. cal/g. How many calories of heat are released when 20.0 g heat of of water at 0C is frozen to ice? A) 600 cal B) 1600 cal C) 2000 cal D) 2200 cal E) 0 cal 8) A order is 0.125 g of ampicillin. The liquid suspension on hand contains 250 mg/5.0 doctor's mL. How many milliliters of the suspension are required? A) 0.0025 mL B) 3.0 mL C) 2.5 mL D) 6.3 mL E) 0.0063 mL 9) Which one of the following substances will float in gasoline (D = 0.66 g/mL)? A) table salt B) (d = 2.16 g/mL) balsa wood C) (d = 0.16 g/mL) sugar D) (d = 1.59 g/mL) aluminum E) (d = 2.70 g/mL) mercury 10) (d = 13.6 g/mL) What is the mass of 53 mL of ethyl alcohol (D = 0.79 g/mL)? A) 67.1 g B) 41.9 g C) 42 g D) 67 g E) 53 g ...
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This homework help was uploaded on 04/09/2008 for the course CHEMISTRY 1406 taught by Professor Harman during the Spring '08 term at South Plains College.

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HW208 - CHEM 1406 0 " " 1) * Homework #2 due:...

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