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How many moles of lithium phosphate (Li3PO4) are contained in 66.6 g of lithium phosphate?

How many moles of lithium phosphate (Li3PO4) are contained in 66.6 g of lithium phosphate?

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Answer #1

molecular weight of Li3PO4 = 116 (Li atomic weght =7; O atomic weight =16;P atomic weight =31

7*3+31*1+16*4 = 116)

number of moles =weight/molecular weight

                         =66.6/116

                         =0.574 moles

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