Chemical Equation Glucose To Ethanol

By admin, July 21, 2009 8:47 pm

Can you help me with this pleaseee!? I really don’t get it.?

Ok..here is the info:
Fermentation is a chemical process that has been used in the production of bread, beer, wine and many other products throughout history. In fermentation, glucose (C6H12O6) is broken down into ethanol (C2H6O).

Here is the balanced equation:
C6H12O6 –> 2C2H6O + 2CO2

The questions are:
1.If you wanted to obtain 25g of ethanol, how many grams of glucose would you need to ferment?

2. If you assume that the reaction in Question 1 happens at STP, what volume of carbon dioxide would be produced.

Here is the first part.

1. 25g ethanol/molwt = moles of ethanol (you do the math)

2. two moles ethanol = 1 mole of glucose

3. so moles from #1/2 = moles of glucose

4. moles glucose times mol wt = grams glucose

For part 2, do the same thing with the CO2 and convert to L instead of grams at the end.


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