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1) A 6.13 g sample of a mixture that contains only carbon (C), hydrogen (H), and...

1) A 6.13 g sample of a mixture that contains only carbon (C), hydrogen (H), and oxygen (O) is combusted in excess oxygen gas. The product CO2 collected has a mass of 14.3 grams and the product H2O collected has a mass of 5.14 grams. Determine the mass (g) of oxygen in this mixture. Enter your mass ROUNDED to 3 significant figures. Do not enter the g units.

2) A metal M forms an oxide with an empirical formula of M2O3. This oxide is 10.301% oxygen by mass. Identify metal M. Type the chemical symbol of metal M into the text field.

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