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Chemistry Homework Help => AP Chemistry => Topic started by: Rayudu on February 01, 2026, 08:13:54 PM

Title: Quiz 6.6 - AP chemistry quiz
Post by: Rayudu on February 01, 2026, 08:13:54 PM
Not sure why answer choice C is wrong given my work
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Title: Re: Quiz 6.6 - AP chemistry quiz
Post by: uma on February 06, 2026, 12:26:12 AM
Your method is correct however the value is for two moles of C4H10.In the balanced equation it is 2 moles of butane on combustion gives −5756 kJ of energy.
You need to take this ratio-
 580 g * (1mol C4H10 / 58.12g  ) * (−5756 kJ / 2 moles C4H10)
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