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6. Radium decomposes in air at the rate proportional to the amount present. It is found out that in 25 years,I.1% of a certain amount decomposed. Determine approximately how long will it take: A. For one-half of the original amount to decompose? B. 20% of the amount to decompose? C. What percent of the amount will decompose in 50 years?

6. Radium decomposes in air at the rate proportional to the amount present. It is found out that in 25 years,I.1% of a certain amount decomposed. Determine approximately how long will it take: A. For one-half of the original amount to decompose? B. 20% of the amount to decompose? C. What percent of the amount will decompose in 50 years?

Chemistry for Today: General, Organic, and Biochemistry
Chemistry for Today: General, Organic, and Biochemistry
9th Edition
ISBN:9781305960060
Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Chapter10: Radioactivity And Nuclear Processes
Section: Chapter Questions
Problem 10.80E
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6. Radium decomposes in air at the rate proportional to the amount present. It is found out that in 25 years,I.1% of a certain amount decomposed. Determine approximately how long will it take: A. For one-half of the original amount to decompose? B. 20% of the amount to decompose? C. What percent of the amount will decompose in 50 years?
Transcribed Image Text:6. Radium decomposes in air at the rate proportional to the amount present. It is found out that in 25 years,I.1% of a certain amount decomposed. Determine approximately how long will it take: A. For one-half of the original amount to decompose? B. 20% of the amount to decompose? C. What percent of the amount will decompose in 50 years?
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