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Phuong Tran 1G
Posts: 33
Joined: Sat Sep 14, 2019 12:16 am


Postby Phuong Tran 1G » Tue Jan 14, 2020 3:54 pm

Hi! For the b part, you have to balance the equation first before you write the expression for K right?

How would you balance the eq?
4NH3 + 6NO — 7N2 + 6H20

Hiba Alnajjar_2C
Posts: 108
Joined: Fri Aug 09, 2019 12:17 am

Re: 5g.3 b HOMEWORK

Postby Hiba Alnajjar_2C » Tue Jan 14, 2020 4:18 pm

I had the same issue as you with this problem, as typically you do have to balance the reaction before writing the equilibrium expression to ensure that your stoichiometric coefficients are correct. However, I checked the answer key and its stoichiometric coefficients match the equation as given (4:6:7:6) , leading me to believe that you don't have to balance the reaction for this particular question. Hope this helps!

Ashley Tran 2I
Posts: 108
Joined: Thu Jul 11, 2019 12:17 am

Re: 5g.3 b HOMEWORK

Postby Ashley Tran 2I » Tue Jan 14, 2020 5:18 pm

On the class website, it says that there is a typo for this problem so in the given balanced chemical equation the coefficient in front of N2 should be 5. This would also change K in the answer.

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