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Tests on human subjects in Boston in 1965 and 1966,

Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward ISBN: 9780321696724 27

Solution for problem 83AE Chapter 21

Chemistry: The Central Science | 12th Edition

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Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward

Chemistry: The Central Science | 12th Edition

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Problem 83AE

Problem 83AE

Tests on human subjects in Boston in 1965 and 1966, following the era of atomic bomb testing, revealed average quantities of about 2 pCi of plutonium radioactivity in the average person. How many disintegrations per second does this level of activity imply? If each alpha particle deposits 8 × 10-13 J of energy and if the average person weighs 75 kg, calculate the number of rads and rems of radiation in 1 yr from such a level of plutonium.

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[Bios 1600] [Chapter 38] [Transport - Plants] [Movement of Material ] •Passive transport - Movement of material down a concentration gradient without expenditure of energy (diffusion) ` •Facilitated diffusion - Passive transport with the aid of membrane transport proteins •Osmosis - Diffusion of water across a selectively permeable membrane in response to differences in solute concentrations •In roots, water moves from soil (lower solute concentration) to root cells (higher solute concentration) •But passive diffusion may not meet needs of plant •Also rely on facilitated diffusion through proteins ( aquaporins) - Increase rate at which waters flows into expanding plant cells

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Chapter 21, Problem 83AE is Solved
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Textbook: Chemistry: The Central Science
Edition: 12
Author: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward
ISBN: 9780321696724

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Tests on human subjects in Boston in 1965 and 1966,