Chemistry

In lab, a student weighed out 1.422 g of unknown in a beaker. The student added 58 mL DI water and followed the protocol in the lab to filter and dry the product, which had a final mass of 0.451 g The filtrate was tested, and the student determined that Na3PO4 was the limiting reactant. Determine the percent by mass composition of Na3PO4 in the original unknown sample Note: These numbers are for calculation practice purposes only, and do not necessarily reflect real results. Report your answer to one place after the decimal.