Specialty Chemistry Forums > Biochemistry and Chemical Biology Forum
Stoichiometry balance help
metalgearrex21:
Would anyone be able to assist me with the problem below. Have to take this engineering module as part of my degree and just struggling at the moment with it.
https://imgur.com/WF1SijD
Just in the first part of the question when it asks to write and balance the equation. I just want to make sure I am using the correct equation.
C6 H12 06 + NH3 = C5 H7 NO2 + CO2 + H20
(Glucose) + (Ammonia) = (Cells) + (Carbon dioxide) + (Water)
This is the equation I wrote myself and I am not sure if it is correct? I think I will be fine to balance it and do the other questions but I just want to make sure I am using the right equation before doing any calculations. If anyone could point me in the right direction please :)
Babcock_Hall:
That looks OK to me, but as you say, it is not balanced yet.
metalgearrex21:
Balanced it out and got 5C6H12O6 + 6NH3 = 5C5H7NO2 + CO2 + 18H2O
But I think the equation in general is wrong as the second question asks for the respiratory quotient and the formula for it is moles of CO2 produced/moles of O2 consumed...Why I am second guessing myself...
AWK:
This reaction is poorly balanced. Try addition of oxygen on the left side of the equation.
metalgearrex21:
Ok so re did it and got C6H12O6 + O2 + NH3 => C5H7NO2 + CO2 + 4H2O.
This would then give me an RQ of 1. So I think I am on the right track with that balance.
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