Exam I Review Problems - Key - EXAM I REVIEW PROBLEMS...

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EXAM I – REVIEW PROBLEMS GENERAL CHEMISTRY P AGE 1 OF 27 Exam I Review Problems 1. Solve the following and give the number is significant figures: ሺଵଷଵ.଻ିଵଵଽሻ ୶ ଵ.଴ହ ଴.ହ଴଴
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EXAM I – REVIEW PROBLEMS GENERAL CHEMISTRY P AGE 2 OF 27 2. Children’s Grape Splash Tylenol Suspension conations 160. mg of acetaminophen per teaspoon or 5.0 mL. 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?
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EXAM I – REVIEW PROBLEMS GENERAL CHEMISTRY P AGE 3 OF 27 3. Liquids A, B, and C are insoluble in one another (i.e., they are immiscible). A, B, and C have densities of 0.998 g/cm 3 , 1.050 g/cm 3 , and 1.102 g/cm 3 , respectively. Which drawing represents the result of placing all three liquids into the same graduated cylinder?
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EXAM I – REVIEW PROBLEMS GENERAL CHEMISTRY P AGE 4 OF 27 4. In the opening scenes of the movie “Raiders of the Lost Ark”, Indiana Jones tries to remove a gold idol form a booby-trapped pedestal. He replaces the idol with a bag of sand of approximately equal volume. The density of gold = 19.32 g/cm 3 and the density of sand = 2 g/cm 3 . (a) Did Indiana have a reasonable chance of not activating the mass-sensitive booby-trap? (b) In a later scene, he and a dishonest guide play catch with the idol. Assume the volume of the idol is about 1.0 L. If it were gold, what mass would the idol have? Can he really play catch with it?
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EXAM I – REVIEW PROBLEMS GENERAL CHEMISTRY P AGE 5 OF 27 5. Onondaga Lake in Syracuse, New York is one of the most polluted lakes in the United States. The lake's present condition is the result of more than a century of domestic and industrial pollution. The lake covers an area of 4.6 square miles, has an average depth of 35 feet. An estimate amount of mercury in the lake is 0.7 g Hg/mL. What is the total mass in kg of mercury in the lake?
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EXAM I – REVIEW PROBLEMS GENERAL CHEMISTRY P AGE 6 OF 27 6. The gas tank in my car has a total volume of 68 L. The manual says the gas gauge light will come on when there are only 5.0 L remaining in the tank and that the car will not be able to draw on the last 2.0 L in the tank. Practically speaking, what is the functional volume of the gas tank?
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