AP Chemistry

If the heat of combustion of 1-butanol (C4H9OH) is 2,710 kJ/mol, what mass of oxygen is consumed when enough 1-butanol is burned to yield 26,400 kJ of energy?

I have no clue where to begin I thought to use enthalpy but it didnt work

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asked by Blake
  1. I worked this problem for you about 4 or 5 yours ago. Here is a link.
    https://www.jiskha.com/display.cgi?id=1512514097

    posted by DrBob222
  2. LOL. HOURS ago.

    posted by DrBob222

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