6. A compound is composed of 28.03% Mg. 21.60% Si, 1.16% H, and 49.21% O. a) Working only with these percentages, determine the empirical formula of this compound. b) What is the molecular formula if the actual molar mass of the compound is 520.28 g/mol? Element Molar Mass (/mol) 101 16.00 24.31 H. Mg Si 28.09

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