[cfox248]

I don't have the first clue where to start on this. Here is the problem:

A 1.0234 g sample of solid plant food was analyzed according to the standard procedure. .8645 g of solid product (MgNH4PO4*6H2O) was isolated at the end of the procedure. How many grams of P are in .8645 g of MgNH4PO4*6H2O? How many grams of P2O5 can be calculated with this many grams of P? What % phosphate (As in P2O5) in plant food sample?

I missed a class period, and this is what I missed. I am so lost. Can anyone help? It's due a bit later today. I tried he Chem Tutoring center and finding my professor, but both times nobody was there.

[Borek]

0.8645 g of MgNH₄PO₄·6H₂O - how many moles?

How many moles of P per 1 mole of MgNH₄PO₄·6H₂O?

[cfox248]

IS that what I'm supposed to figure out, or are you asking me? If it's the latter, it doesn't say.

If it's what I'm supposed to figure out, I think I can possibly start on it at least.

[Borek]

These are steps that would lead to the answer.