Transcription of Percent Composition Worksheet
1 Percent Composition Worksheet W 342 everett community college Tutoring Center Student Support Services Program Find the Percent compositions (rounded to the nearest tenth of a Percent ) of all of the elements in the following compounds: 1) CrF3 Cr: _____ F: _____ 2) Na3PO4 Na: _____ P: _____ O: _____ 3) KCN K: _____ C: _____ N: _____ 4) PI3 P: _____ I: _____ Solutions Hint: Find the molecular weight of the compound then divide the total mass of each element by it and multiply by 100. 1) CrF3 Cr: F: 2) Na3PO4 Na: P: O: 3) KCN K: C: N: 4) PI3 P: I.
