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-   -   Calculate the mass in grams of each element in the body of a 57kg person (http://www.physicsforums.com/showthread.php?t=256510)

mightyhealthy Sep15-08 02:37 PM

calculate the mass in grams of each element in the body of a 57kg person
 
1. The problem statement, all variables and given/known data
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%

Calculate the mass in gram of each element in the body of a 57-kg person


2. Relevant equations

this involves unit conversions 1000grams=1kg
don't know what else


3. The attempt at a solution

i am clueless

Borek Sep15-08 02:58 PM

Re: calculate the mass in grams of each element in the body of a 57kg person
 
What does it mean 35% of something?


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