سؤال في الكيمياء ((كيف؟!))

[Ranad Ayman]

السلام عليكم ورحمة الله وبركاته

10. A 0.580 g sample of a compound containing only carbon and hydrogen contains 0.480 g of carbon and 0.100 g of
hydrogen. At STP, 33.6 mL of the gas has a mass of 0.087 g. What is the molecular (true) formula for the compound?
a) CH3
b) C2H6
c) C2H5
d) C4H10

Which of the following gases will have the greatest density at the same specified temperature and pressure 36 ?
a) H2
b) CClF3
c) CO2
d) C2H6


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