26. For the decay of rubidium (Rb³") into strontium (Sr*") the value of À in Exercise 25 is 1.39 x 10". a. Biotite taken from a sample of granite in the Grand Canyon contained 202 parts per million of rubidium and 3.96 parts per million of strontium.* Determine the age of the sample of granite. b. Some lunar breccias, formed by meteors and collected during the Apollo 16 mission, were determined by the rubidium-strontium method to be approximately 4.53 billion years old. Assuming that the breccias contained no strontium when they were formed, determine the present ratio of strontium to rubidium in the breccias. 2. Potassium (K*) decays into tur
26. For the decay of rubidium (Rb³") into strontium (Sr*") the value of À in Exercise 25 is 1.39 x 10". a. Biotite taken from a sample of granite in the Grand Canyon contained 202 parts per million of rubidium and 3.96 parts per million of strontium.* Determine the age of the sample of granite. b. Some lunar breccias, formed by meteors and collected during the Apollo 16 mission, were determined by the rubidium-strontium method to be approximately 4.53 billion years old. Assuming that the breccias contained no strontium when they were formed, determine the present ratio of strontium to rubidium in the breccias. 2. Potassium (K*) decays into tur
Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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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I want an answer of question number 26.
Transcribed Image Text:26. For the decay of rubidium (Rb³") into strontium (Sr*")
the value of À in Exercise 25 is 1.39 x 10".
a. Biotite taken from a sample of granite in the Grand
Canyon contained 202 parts per million of rubidium
and 3.96 parts per million of strontium.* Determine
the age of the sample of granite.
b. Some lunar breccias, formed by meteors and collected
during the Apollo 16 mission, were determined by the
rubidium-strontium method to be approximately 4.53
billion years old. Assuming that the breccias contained
no strontium when they were formed, determine the
present ratio of strontium to rubidium in the breccias.
2. Potassium (K*) decays into tur
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