Answer to Question #252270 in General Chemistry for Dell

Question #252270

an oxide of chromium is made up of 5.20 g chromium and 5.60 g oxygen what is the empirical formula of the oxide

Expert's answer

Molar mass of chromium = 51.9961g/mol

5.2/51.9961= 0.1

Molar mass of oxygen = 15.999

5.6/15.999= 0.35

= Cr₂O₇

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