Calculate the mass of glucose metabolized by a 80.1 person in climbing a mountain

shelly

Banned
with an elevation gain of 1? Calculate the mass of glucose metabolized by a 80.1 person in climbing a mountain with an elevation gain of 1310 . Assume that the work performed in the climb is four times that required to simply lift 80.1 by 1310 .
The metabolism of glucose, C6H12O6, yields CO2(g) and H20(l) as products. Energy released in the process is converted to useful work, with about 68.0% efficiency. deltaHf of glucose is -1273.3.

I can get as far as calculating the work = 4116 kj and the std enthalpy of formation for the balanced equation C6H12O6(s) + 3 O2(g) ----> 6 CO2(g) + 6 H2O(l) as -2802.5 kj
I am stuck on how to set up the unit conversions from here. I think the heat metabolism of one mole glucose (-2802.5 kj/mol) is needed to convert the 68% some how ...does this get me to moles of glucose? if so, how do I set it up? I'm pretty sure I use the moles of glucose and the molar mass of glucose (180.18 g/mol) to get to grams of glucose...but again how? Please do not leave out any steps so I can see where I keep making my errors. Thanks for your time :)
 
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