SOLUTION: Please HELP IF YOU KNOW SOME CHEMISTRY BASIS. . Apatite (Ca5(PO4)3F) is used to manufacture fertilizer. How many kilograms of pure phosphorus (P) is included in 1150 kg of apat

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Question 410191: Please HELP IF YOU KNOW SOME CHEMISTRY BASIS.
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Apatite (Ca5(PO4)3F) is used to manufacture fertilizer.
How many kilograms of pure phosphorus (P) is included in 1150 kg of apatite?
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I tried and found 70622.23g
Found 2 solutions by solver91311, richard1234:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
This is a mathematics site. Try the Chemistry board on Cramster.com

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
The atomic weight of phosphorus is 30.974. The total atomic weight of Ca%5B5%5D%28PO%5B4%5D%293F%29 is 5(40.078) + 30.974 + 4(16) + 3(19) = 352.364. Thus, the amount of phosphorus is

%281150kg%29%2830.974%2F352.364%29+=+101.089kg

However, I haven't taken very much chemistry in school (I've only taken biology, physics, and AP physics so far....) but I'm pretty sure this would be how you solve it, simply using ratios.