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Arrange these samples in order of increasing mass: 2.5 mol Pb, 0.75 mol Au, 4.0 mol Mg, and 12 mol F.

3.15 A 100-g sample of the phosphorus oxide contains 43.64 g P and 56.36 g O. The known molar mass is 283.89 g/mol. The molar mass is twice as large as the empirical formula mass, so the molecular formula of the oxide is P4O10. 3.16 Find the number of moles of each element in 100.0 g of vitamin C.

Explanation:

heat or electricity in the atmosphere- c.

r just means there's a number of carbon in teh chain. for example rcooh means that after x number of carbon, the chain ends with cooh.

explanation: