I don't get it!!
In winemaking, the sugars in grapes undergo fermentation by yeast to yield CH3CH2OH and CO2. During cellular respiration, sugar and enthanol are "burned" to water vapor andCO2.
Write a combustion reaction for ethanol.
I need help with balancing the equation
i think it's
C2H6OH(l) + 3O2(g) ---> 2CO2(g) + 3H2O(g)
am I correct?..thanks!•chemistry - paul, Sunday, October 25, 2015 at 3:06pm
looks good to me, except the C2H6OH should be C2H5OH.
comment:
I did that, but it said...try again!
then it said HINT:
Start by writing a balanced chemical equation for the fermentation reaction of C6H12O6 and for the respiration reaction (combustion) of C6H12O6...what formula should be used to find the standard enthalpy of a reaction? Use the standard enthalpy of formation values from your textbook when calculating the standard enthalpy of reaction for both fermentation and respiration. thanks!•Chemistry - DrBob222, Monday, October 26, 2015 at 5:30pm
See this site. Zymase is just a catalyst.
See your other post above. I don't get it either although the equation from that site is the correct one for the fermentation.
To write the balanced equation for the combustion of ethanol (C2H5OH), you need to make sure that the number of atoms of each element is the same on both sides of the equation.
The combustion of ethanol can be represented by the following equation:
C2H5OH + O2 → CO2 + H2O
To balance this equation, you need to ensure that the number of atoms of each element is equal on both sides.
Let's start by balancing the carbon atoms.
On the left side, there are 2 carbon atoms from C2H5OH and 1 carbon atom from CO2, so we need to put a coefficient of 2 in front of CO2.
C2H5OH + O2 → 2CO2 + H2O
Next, balance the hydrogen atoms.
On the left side, there are 6 hydrogen atoms from C2H5OH and 2 hydrogen atoms from H2O, so we need to put a coefficient of 3 in front of H2O.
C2H5OH + O2 → 2CO2 + 3H2O
Finally, balance the oxygen atoms.
On the left side, there are 1 oxygen atom from C2H5OH and 2 oxygen atoms from O2, so we need to put a coefficient of 3/2 or 1.5 in front of O2.
C2H5OH + 1.5O2 → 2CO2 + 3H2O
So, the balanced equation for the combustion of ethanol is:
C2H5OH + 1.5O2 → 2CO2 + 3H2O
Remember that when balancing chemical equations, it's important to ensure that the elements and their respective numbers are balanced on both sides.