change from grams to mole units

Question

8.96 of Ca3(PO₄)₂

Change from grams to mole units

Answer 1

You're taking chemistry, right?  You know about molecular weight, right?  Well, then, calculate the molecular weight of Ca₃(PO₄)₂.  8.96 grams divided by the molecular weight equals the number of moles.  Go for it ... good luck!!

Answer 2

 

Molecular wt of Ca₃(PO₄)₂  = (20x3) + ((15 + (8x4))2 = 154

 

154 g = 1 mole

8.96g = 8.96/154 = 0.058 moles

:)