Examlex
An unknown gaseous hydrocarbon contains 85.63% C.Its density is 1.524 g/L at 0.665 atm and 373 K.What is the molecular formula of the gas? (R = 0.08206 L⋅atm/mol⋅K)
Q4: Strontium oxide has a face-centered cubic unit
Q10: The electron in a hydrogen atom,originally in
Q24: How long will it take 10.0 mL
Q28: What volume of O<sub>2</sub>,measured at 24.0°C and
Q37: Polyethylene is a polymer consisting of only
Q46: Sulfuryl chloride decomposes to sulfur dioxide and
Q59: What is the wavelength of light emitted
Q66: London dispersion forces are the only significant
Q69: The pressure exerted by gas molecules inside
Q72: Into a 2.82-liter container at 25°C are