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I need help with all part of I and j IF SOMEONE CAN HELP WITH WORK PLEASE

i. Find the simplest (empirical) formula for each of the following compounds, given the percentage by mass 72.4% Fe and 27.6% O ii. 0.5% H, 47.6% Pt, and 51.9% C iii. 28.0% N, 10.7% H, 20.6% P, and 42.6% O j. A metal, M, forms an oxide, M203, which contains 81.9% of the metal by weight. Find the atomic weight of M. What is the chemical symbol for the metal?

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(o.ทุ 276x .73 1-301 33 - 2-66 Cii) 95.0 393に ひL4

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