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1. Aspirin has been recommended to minimize the chance of hearts attacks in persons who have already had one or more occurrences. If a patient takes one aspirin tablet for 10.0 years, how many pounds of aspirin will the patient consume? (Assume that each tablet is approximately 325 mg.)

1. Aspirin has been recommended to minimize the chance of hearts attacks in persons who have already had one or more occurrences. If a patient takes one aspirin tablet for 10.0 years, how many pounds of aspirin will the patient consume? (Assume that each tablet is approximately 325 mg.)

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter1: Essential Ideas
Section: Chapter Questions
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1. Aspirin has been recommended to minimize the chance of hearts attacks in persons who have already had one or more occurrences. If a patient takes one aspirin tablet for 10.0 years, how many pounds of aspirin will the patient consume? (Assume that each tablet is approximately 325 mg.) 2. A block of wood measures 8.0 in high, 2.0 in wide, and 1.5 in deep. a. Name one physical property and one chemical property of the block of wood. b. Label each property from part (a) as intensive or extensive. c. Calculate the volume of the block of woods in unites of in³. d. Calculate the dimensions of the block of wood in units of cm. e. Calculate the volume of the block of wood in units of cm³. f. Use the value that you obtained for the volume of the block of wood to calculate the mass of the block of wood. The density of the wood is 0.85 g/cm³. 3. An instrument used to detect metals in drinking water can detect as little as 1 µg of mercury in 1L of water. Mercury is a toxic metal; it accumulates in the body and is responsible for the deterioration of brain cells. Calculate the number of mercury atoms you would consume if you drank 1L if water that contained 1 µg of mercury. (The mass of one mercury atom is 3.3 x 10-22 g.) 4. Consider a volumetric flask containing 50.0 mL of water: a. Provide one physical property and one chemical property of the water in the flask. b. Label each property from part (a) as intensive or extensive. c. Calculate the mass of water in the volumetric flask, knowing that the density of the water is 1.00 g/cm³. d. Convert the mass calculated in part (c) to ounces. e. Convert the mass calculated in part (c) to pounds. f. Which of the units calculated in parts (d) and (e) are most appropriate? Why? 5. Yesterday's temperature was 40 °F. Today it is 80 °F. Bills tells Sue that ir is twice as hot today. Sue disagrees. Do you think Sue is correct or incorrect? Why or why not? 6. An aqueous solution (salt dissolved in water) is contained in a 100.00-mL volumetric flask. The temperature of the solution is 20.0 °C. a. Calculate the temperature of the solution in degrees Fahrenheit. b. Calculate the temperature of the solution on the Kelvin scale. c. When the solution is heated, its density decreases. How would the volume of the solution change if the solution is warned to 25.0 °C. d. When the solution is cooled, its density increases. How would the volume of the solution change if the solution is cooled to 15.0 °C? e. What does the information conveyed in parts (c) and (d) tell you about the proper use of volumetric flasks? f. Is the density of the solution an intensive property or an extensive property?
Transcribed Image Text:1. Aspirin has been recommended to minimize the chance of hearts attacks in persons who have already had one or more occurrences. If a patient takes one aspirin tablet for 10.0 years, how many pounds of aspirin will the patient consume? (Assume that each tablet is approximately 325 mg.) 2. A block of wood measures 8.0 in high, 2.0 in wide, and 1.5 in deep. a. Name one physical property and one chemical property of the block of wood. b. Label each property from part (a) as intensive or extensive. c. Calculate the volume of the block of woods in unites of in³. d. Calculate the dimensions of the block of wood in units of cm. e. Calculate the volume of the block of wood in units of cm³. f. Use the value that you obtained for the volume of the block of wood to calculate the mass of the block of wood. The density of the wood is 0.85 g/cm³. 3. An instrument used to detect metals in drinking water can detect as little as 1 µg of mercury in 1L of water. Mercury is a toxic metal; it accumulates in the body and is responsible for the deterioration of brain cells. Calculate the number of mercury atoms you would consume if you drank 1L if water that contained 1 µg of mercury. (The mass of one mercury atom is 3.3 x 10-22 g.) 4. Consider a volumetric flask containing 50.0 mL of water: a. Provide one physical property and one chemical property of the water in the flask. b. Label each property from part (a) as intensive or extensive. c. Calculate the mass of water in the volumetric flask, knowing that the density of the water is 1.00 g/cm³. d. Convert the mass calculated in part (c) to ounces. e. Convert the mass calculated in part (c) to pounds. f. Which of the units calculated in parts (d) and (e) are most appropriate? Why? 5. Yesterday's temperature was 40 °F. Today it is 80 °F. Bills tells Sue that ir is twice as hot today. Sue disagrees. Do you think Sue is correct or incorrect? Why or why not? 6. An aqueous solution (salt dissolved in water) is contained in a 100.00-mL volumetric flask. The temperature of the solution is 20.0 °C. a. Calculate the temperature of the solution in degrees Fahrenheit. b. Calculate the temperature of the solution on the Kelvin scale. c. When the solution is heated, its density decreases. How would the volume of the solution change if the solution is warned to 25.0 °C. d. When the solution is cooled, its density increases. How would the volume of the solution change if the solution is cooled to 15.0 °C? e. What does the information conveyed in parts (c) and (d) tell you about the proper use of volumetric flasks? f. Is the density of the solution an intensive property or an extensive property?
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please answer 6c, 6d, 6e and 6f. Thank you.

6. An aqueous solution (salt dissolved in water) is contained in a 100.00-mL volumetric flask. The temperature of the solution is 20.0 °C. a. Calculate the temperature of the solution in degrees Fahrenheit. b. Calculate the temperature of the solution on the Kelvin scale. c. When the solution is heated, its density decreases. How would the volume of the solution change if the solution is warned to 25.0 °C. d. When the solution is cooled, its density increases. How would the volume of the solution change if the solution is cooled to 15.0 °C? e. What does the information conveyed in parts (c) and (d) tell you about the proper use of volumetric flasks? f. Is the density of the solution an intensive property or an extensive property?
Transcribed Image Text:6. An aqueous solution (salt dissolved in water) is contained in a 100.00-mL volumetric flask. The temperature of the solution is 20.0 °C. a. Calculate the temperature of the solution in degrees Fahrenheit. b. Calculate the temperature of the solution on the Kelvin scale. c. When the solution is heated, its density decreases. How would the volume of the solution change if the solution is warned to 25.0 °C. d. When the solution is cooled, its density increases. How would the volume of the solution change if the solution is cooled to 15.0 °C? e. What does the information conveyed in parts (c) and (d) tell you about the proper use of volumetric flasks? f. Is the density of the solution an intensive property or an extensive property?
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