. Suppose that an 85.0-g laboratory animal ingests 10.0 mg of a substance that contained 2.55% by mass Pu-239, an alpha emitter with a half-life of 24,110 years. a. What is the animal's initial radiation exposure in curies? b. If all of the energy from the emitted alpha particles is absorbed by the animal's tissues and if the energy of each emission is 7.77 x 10-12J, what is the dose in rads to the animal in the first 4.0 hours following the ingestion of the radioactive material? Assuming a biological effectiveness factor of 20, what is the 4.0-hour dose in rems?

. Suppose that an 85.0-g laboratory animal ingests 10.0 mg of a substance that contained 2.55% by mass Pu-239, an alpha emitter with a half-life of 24,110 years. a. What is the animal's initial radiation exposure in curies? b. If all of the energy from the emitted alpha particles is absorbed by the animal's tissues and if the energy of each emission is 7.77 x 10-12J, what is the dose in rads to the animal in the first 4.0 hours following the ingestion of the radioactive material? Assuming a biological effectiveness factor of 20, what is the 4.0-hour dose in rems?

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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Question

. Suppose that an 85.0-g laboratory animal ingests 10.0 mg of a
substance that contained 2.55% by mass Pu-239, an alpha emitter
with a half-life of 24,110 years.
a. What is the animal's initial radiation exposure in curies?
b. If all of the energy from the emitted alpha particles is
absorbed by the animal's tissues and if the energy of each
emission is 7.77 x 10-12J, what is the dose in rads to the
animal in the first 4.0 hours following the ingestion of the
radioactive material? Assuming a biological effectiveness
factor of 20, what is the 4.0-hour dose in rems?

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