Posted by **Jamie** on Monday, June 14, 2010 at 10:11pm.

I need to find how many grams phosphorus (P) are in 0.8645 g sample of MgNH4PO4 x 6H2O

How many grams P2O5 can be calculated with this many grams of P

What is the percent P (as P2O5) in this

- chemistry -
**DrBob222**, Tuesday, June 15, 2010 at 1:02am
moles MgNH4PO4.6H2O in 0.8645 g MgNH4PO4.6H2O =

0.8645/molar mass MgNH4PO4.6H2O = ?? moles.

Then ?? moles x (1 mole P/1 mole MgNH4PO4.6H2O = ?? moles x 1/1 = xx moles P.

Then g P = moles P x molar mass P.

- ap chemistry -
**nikita**, Wednesday, October 13, 2010 at 10:06am
girlll u needa stop stressin! jus chill erythang gon b okay.

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