Chemistry Help!!?

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If you isolated 0.57 g of calcium phosphate, calculate the percent phosphate in a 50 g sample of milk.

2007-07-30 18:56:05 · 2 answers · asked by Allie 2 in Science & Mathematics ➔ Chemistry

PO4 ==> (30.97 + 4*16) = 94.97 g/mole
Ca3(PO4)2 ==> (3*40.08 + 2*94.97) = 310.18 g/mole
%PO4 = (189.94/310.18)(0.57/50)(100) = 0.69808% ≈ 0.70%

2007-07-30 19:14:53 · answer #1 · answered by Helmut 7 · 0⤊ 0⤋

not enough info to complete unless you're saying there's .57 g of Calcium phosphate in 50 g of milk

2007-07-31 02:15:37 · answer #2 · answered by Aaron H 2 · 0⤊ 0⤋