64E-Formula-Prob-Ans

64E-Formula-Prob-Ans - 3 Molecular Formula: S 3 O 6 4. A...

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EMPIRICAL FORMULA GCHEM I CONCEPT LAB PROBLEMS 1. A magnesium compound ( MM 300.0 grams/mole) contains 72.2% Mg and 27.8% N. Emp/Formula : Mg 3 N 2 Emp/Mass: 100.92 grs Emp/Units: 3 Molecular Formula: Mg 9 N 6 2. A compound was analyzed and found to contains 42.05 grs Nitrogen (N) and 95.95 grs Oxygen (O). The molar mass of compound was 230.0 grams/mole. Emp/Formula: NO 2 Emp/Mass: 46.01 grs Emp/Units: 5 Molecular Formula: N 5 O 1 0 3. Sample of a sulfur and oxygen compound was isolated in oil. The compound ( MM 192.0 grams/mole) was analyzed and found to contain 50.1% S and 49.9% O. Emp/Formula: SO 2 Emp/Mass: 64.07 grs Emp/Units:
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Unformatted text preview: 3 Molecular Formula: S 3 O 6 4. A simple sugar contains 0.0406 grams C, 0.00681 grams H, and 0.0540 grams O. The molar mass of the compound is 180.0 grams/mole. Emp /Formula: CH 2 O Emp/Mass: 30.03 grs Emp/Units: 6 Molecular Formula: C 6 H 12 O 6 5. Fats are used in the manufacturing soap compounds. An analysis of a 100.0 gram sample of a fat showed it contained: 76.5 % C, 11.3 % O, and balance H. The molar mass of the fat was 1,128.0 grams/mole. Emp/Formula: C 9 H 17 O Emp/Mass: 141.23 grs Emp/Units: 8 Molecular Formula: C 72 H 136 O 8 jpech 06/2002...
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