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Americium-241 is used in smoke detectors. It has a first order rate constant for radioactive decay of k=1.6 x 10yr By contrast, phophorus-32. which is used for the analysis of metabolic pathways, has a rate constant for radioactive decay of k = 0.050 day ¹ How much of a 2.50 mg sample of americium remains after 3 half-lives? Express your answer in milligrams to two significant figures. TTL= Submit Part E Templates Symbols Undo redo es keyboard shortcuts Help nu How much of a 1.51 mg sample of phophorus remains after 3 half-lives? Express your answer in milligrams to two significant figures. Templates Symbols Undo redo Peser keyboard shortcuts help Submit Part F TTL= Request Answer How much of a 1.00 mg sample of americium remains after 4 days? Express your answer in milligrams to two significant figures. Part G Submit Request Answer Templates Symbols Undo rado Reset keyboard shortcuts Help N Previous Answers Request Answer How much of a 1.35 mg sample of phophorus remains after 4 days? Express your answer in milligrams to two significant figures. Templates Symbols Undo redo Peser keyboard shortcuts Help mg mg mg

Americium-241 is used in smoke detectors. It has a first order rate constant for radioactive decay of k=1.6 x 10yr By contrast, phophorus-32. which is used for the analysis of metabolic pathways, has a rate constant for radioactive decay of k = 0.050 day ¹ How much of a 2.50 mg sample of americium remains after 3 half-lives? Express your answer in milligrams to two significant figures. TTL= Submit Part E Templates Symbols Undo redo es keyboard shortcuts Help nu How much of a 1.51 mg sample of phophorus remains after 3 half-lives? Express your answer in milligrams to two significant figures. Templates Symbols Undo redo Peser keyboard shortcuts help Submit Part F TTL= Request Answer How much of a 1.00 mg sample of americium remains after 4 days? Express your answer in milligrams to two significant figures. Part G Submit Request Answer Templates Symbols Undo rado Reset keyboard shortcuts Help N Previous Answers Request Answer How much of a 1.35 mg sample of phophorus remains after 4 days? Express your answer in milligrams to two significant figures. Templates Symbols Undo redo Peser keyboard shortcuts Help mg mg mg

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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Americium-241 is used in smoke detectors. It has a first order rate constant for radioactive decay of k= 1.6 x 10¹ yr. By contrast, phophorus-32, which is used for the analysis of metabolic pathways, has a rate constant for radioactive decay of k = 0.050 day-1 ▾ How much of a 2.50 mg sample of americium remains after 3 half-lives? Express your answer in milligrams to two significant figures. ▾ TTL = ▾ Part E Submit TIL = How much of a 1.51 mg sample of phophorus remains after 3 half-lives? Express your answer in milligrams to two significant figures. Templates Symbols Undo redo Peser keyboard shortcuts help Templates Symbols Undo redo es keyboard shortcuts Help n Submit Part F TTL= Request Answer How much of a 1.00 mg sample of americium remains after 4 days? Express your answer in milligrams to two significant figures. Part G Submit Request Answer Templates Symbols Undo redo Teset keyboard shortcuts Help n ** Previous Answers Request Answer How much of a 1.35 mg sample of phophorus remains after 4 days? Express your answer in milligrams to two significant figures. Templates Symbols Undo rado eser keyboard shortcuts Help .. nu mng mg mg P Pearson Review
Transcribed Image Text:Americium-241 is used in smoke detectors. It has a first order rate constant for radioactive decay of k= 1.6 x 10¹ yr. By contrast, phophorus-32, which is used for the analysis of metabolic pathways, has a rate constant for radioactive decay of k = 0.050 day-1 ▾ How much of a 2.50 mg sample of americium remains after 3 half-lives? Express your answer in milligrams to two significant figures. ▾ TTL = ▾ Part E Submit TIL = How much of a 1.51 mg sample of phophorus remains after 3 half-lives? Express your answer in milligrams to two significant figures. Templates Symbols Undo redo Peser keyboard shortcuts help Templates Symbols Undo redo es keyboard shortcuts Help n Submit Part F TTL= Request Answer How much of a 1.00 mg sample of americium remains after 4 days? Express your answer in milligrams to two significant figures. Part G Submit Request Answer Templates Symbols Undo redo Teset keyboard shortcuts Help n ** Previous Answers Request Answer How much of a 1.35 mg sample of phophorus remains after 4 days? Express your answer in milligrams to two significant figures. Templates Symbols Undo rado eser keyboard shortcuts Help .. nu mng mg mg P Pearson Review
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