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

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Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.