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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: LeftDMSO on May 20, 2020, 07:37:08 AM

Title: Algebric Method for Chem Equation
Post by: LeftDMSO on May 20, 2020, 07:37:08 AM

Hello all :)
I am new here so sorry if this is under the wrong category!

So I am having a lot of exercises for university and one of them is balancing chemical equations with algebric method... and I am stuck with one for more than a week. Was hoping someone could help me?

NH₃ + CO + Na₂CO₃  :rarrow: NaCN + CO₂ +  H₂ + H₂O

I can't find enough expressions. I have managed to balance it with the half reaction method though to make sure its solvable (?).
Thanks in advance!!!!

Title: Re: Algebric Method for Chem Equation
Post by: AWK on May 20, 2020, 10:25:11 AM

This is a combination of two different reactions.
NH₃ + CO + Na₂CO₃ = NaCN + H₂O + CO₂
and
CO + H₂O = H₂ + CO₂
This set of reactions can be balanced in an infinite number of ways though number of water molecules limits multiplicity of the second reaction.

Title: Re: Algebric Method for Chem Equation
Post by: LeftDMSO on May 20, 2020, 11:26:30 AM

Oh my-  Thank you so much!