Question 250737

A cylinder was found in a storeroom of a manufacturing plant. The label on the cylinder was gone, and no one remembered what the cylinder held. A 0.00469-gram sample was found to occupy 4.13 mL at 23° C and 745 torr. The sample was also found to be composed of only carbon and hydrogen. Identify the gas (C2H2, CH4. C2H6 or C2H4)

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