Answer to Question #64712 in General Chemistry for Liliana

Question #64712

I need to solve the following using the Molecular Formula:
1. Empirical formula = C2H4S; molecular formula = 179 amu
2. Empirical formula = C2H2O; molecular formula mass = 254 amu
3. Determine the molecular formula for a compound that is 41.3% C, 3.47% H, 55.14% O and has an experimental molar mass of 116.07g.
4. Determine the molecular formula for a compound that is 54.54% C, 9.15% H, and 36.32% O and has an experimental molar mass of 88g.
5. A 2.65g sample of a salmon-colored powder contains 0.70g of Cr, 0.65g S and 1.30g O. The molar mass is 392.2g. What is the molecular formula?

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