If a rock contained 12.0 g of 4°K when the earth was formed 4.54 billion years ago and the half-life of 4°K is 1.25 billion years, what mass of 4°K remains, in grams, in the rock today? g
If a rock contained 12.0 g of 4°K when the earth was formed 4.54 billion years ago and the half-life of 4°K is 1.25 billion years, what mass of 4°K remains, in grams, in the rock today? g
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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Transcribed Image Text:Question 3.e of 24
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Alkali metals derive their name
from wood ashes. Their basic
hydroxides are used as lye in soap
making.
If a rock contained 12.0 g of 4°K
when the earth was formed 4.54
billion years ago and the half-life
of 4°K is 1.25 billion years, what
mass of 4°K remains, in grams, in
the rock today?
g
1
2
4
C
7
8
+/-
х 100
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