Discussion Overview
The discussion revolves around a homework problem involving the identification of a hydrocarbon based on its combustion products and physical properties. Participants explore the calculations needed to determine the molecular formula of the hydrocarbon X, including the use of the ideal gas law and stoichiometry.
Discussion Character
- Homework-related
- Mathematical reasoning
- Technical explanation
Main Points Raised
- One participant presents the problem stating that combustion of hydrocarbon X produces 0.66g of carbon dioxide and 0.27g of water, leading to an empirical formula of CH2.
- Another participant questions the units used in the calculations, specifically regarding the volume of gas and the gas constant R.
- Multiple participants engage in clarifying the correct volume of one mole of gas at standard temperature and pressure (STP), with conflicting values of 24000 m³ and 22400 m³ being discussed.
- There is a correction regarding the conversion of liters to cubic meters, with emphasis on the need for accurate unit conversion in calculations.
- A participant claims to have found the molecular formula as C3H6 after correcting their earlier mistakes in the calculations.
Areas of Agreement / Disagreement
Participants express disagreement regarding the correct volume of one mole of gas at STP, with no consensus reached on the correct value. There is also uncertainty about the appropriate units and conversions needed for the calculations.
Contextual Notes
Limitations include unresolved mathematical steps and dependencies on correct unit conversions. The discussion reflects varying levels of understanding and corrections made throughout the thread.
Who May Find This Useful
Students and individuals interested in chemistry, particularly those studying gas laws, stoichiometry, and hydrocarbon identification.