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OpenStudy (anonymous):
what is the mass of phosphorus in a 23-kg person?
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OpenStudy (cuanchi):
The natural abundaces of elements in the human body, expressed as a percent by mass, are oxygen (o) 65%; carbon (C), 18%; hydrogen (H), 10%; nitrogen (N), 3.0%; calcium (Ca), 1.6%; phosphorous(P), 1.2%; all other elements 1.2% Read more: http://www.physicsforums.com
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