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1.90 Measurements show that 1.0 g of iron (Fe) contains 1.1 × 10²2 Fe atoms. How many Fe atoms are in 4.9 g of Fe, which is the total amount of iron in the body of an average adult? Answer

1.90 Measurements show that 1.0 g of iron (Fe) contains 1.1 × 10²2 Fe atoms. How many Fe atoms are in 4.9 g of Fe, which is the total amount of iron in the body of an average adult? Answer

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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◄ Mail 3:11 PM Fri Sep 16 <> M eBooks - My... < 1.90 1.91 1.92 1.93 1.94 1.95 1.96 AA ●●● prod.reader-ui.prod.mheducation.com x Additional Pr... C | Chegg.com G Suppose tha... Answer C Solved: Cha... ↓ C 75% + The surfab Answ Aa by mining gold from the ocean? Measurements show that 1.0 g of iron (Fe) contains 1.1 × 10²² Fe atoms. How many Fe atoms are in 4.9 g of Fe, which is the total amount of iron in the body of an average adult? The thin outer layer of Earth, called the crust, contains only 0.50% of Earth's total mass and yet is the source of almost all the elements (the atmosphere provides elements such as oxygen, nitrogen, and a few other gases). Silicon (Si) is the second most abundant element in Earth's crust (27.2% by mass). Calculate the mass of silicon in kilograms in Earth's crust. (The mass of Earth is 5.9 × 10²¹ tons. 1 ton = 2000 lb; 1 lb = = 453.6 g.) Page 37 The radius of a copper (Cu) atom is roughly 1.3 × 10−¹0 m. How many times can you divide evenly a piece of 10-cm copper wire until it is reduced to two separate copper atoms? (Assume there are appropriate tools for this procedure and that copper atoms are lined up in a straight line, in contact with each other. Round off your answer to an integer.) Answer One gallon of gasoline burned in an automobile's engine produces, on average, 9.5 kg of carbon dioxide, which is a greenhouse gas-that is, it promotes the warming of Earth's atmosphere. Calculate the annual production of carbon dioxide in kilograms if there are 250 million cars in the United States and each car covers a distance of 5000 mi at a consumption rate of 20 miles per gallon. A sheet of aluminum (Al) foil has a total area of 1.000 ft² and a mass of 3.636 g. What is the thickness of the foil in millimeters? (Density of Al = 2.699 g/cm³.) Answer For each of the following, is the mixture homogeneous or heterogeneous: (a) air in a closed bottle, (b) air over New York City. Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm chlorine, or 1 g of chlorine per million grams of water. Calculate the volume of a chlorine solution (in milliliters) a homeowner should add to her swimming pool if the solution contams 0.0% chorne by mass and there are
Transcribed Image Text:◄ Mail 3:11 PM Fri Sep 16 <> M eBooks - My... < 1.90 1.91 1.92 1.93 1.94 1.95 1.96 AA ●●● prod.reader-ui.prod.mheducation.com x Additional Pr... C | Chegg.com G Suppose tha... Answer C Solved: Cha... ↓ C 75% + The surfab Answ Aa by mining gold from the ocean? Measurements show that 1.0 g of iron (Fe) contains 1.1 × 10²² Fe atoms. How many Fe atoms are in 4.9 g of Fe, which is the total amount of iron in the body of an average adult? The thin outer layer of Earth, called the crust, contains only 0.50% of Earth's total mass and yet is the source of almost all the elements (the atmosphere provides elements such as oxygen, nitrogen, and a few other gases). Silicon (Si) is the second most abundant element in Earth's crust (27.2% by mass). Calculate the mass of silicon in kilograms in Earth's crust. (The mass of Earth is 5.9 × 10²¹ tons. 1 ton = 2000 lb; 1 lb = = 453.6 g.) Page 37 The radius of a copper (Cu) atom is roughly 1.3 × 10−¹0 m. How many times can you divide evenly a piece of 10-cm copper wire until it is reduced to two separate copper atoms? (Assume there are appropriate tools for this procedure and that copper atoms are lined up in a straight line, in contact with each other. Round off your answer to an integer.) Answer One gallon of gasoline burned in an automobile's engine produces, on average, 9.5 kg of carbon dioxide, which is a greenhouse gas-that is, it promotes the warming of Earth's atmosphere. Calculate the annual production of carbon dioxide in kilograms if there are 250 million cars in the United States and each car covers a distance of 5000 mi at a consumption rate of 20 miles per gallon. A sheet of aluminum (Al) foil has a total area of 1.000 ft² and a mass of 3.636 g. What is the thickness of the foil in millimeters? (Density of Al = 2.699 g/cm³.) Answer For each of the following, is the mixture homogeneous or heterogeneous: (a) air in a closed bottle, (b) air over New York City. Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm chlorine, or 1 g of chlorine per million grams of water. Calculate the volume of a chlorine solution (in milliliters) a homeowner should add to her swimming pool if the solution contams 0.0% chorne by mass and there are
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