11.3 6th edition

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Karyn Nguyen 1K
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Joined: Fri Apr 06, 2018 11:04 am

11.3 6th edition

Postby Karyn Nguyen 1K » Sun Jan 20, 2019 7:21 pm

For (b) in this question, I was wondering why we don't balance the equation first and then give K?

Write the equilibrium expression K for each of the following reactions:
(a) 2C2H4(g) + O2(g) + 4HCl(g) = 2C2H4Cl2(g) + 2H2O(g)
(b) 4NH3(g) + 6NO(g) = 7N2(g) + 6H2O(g)

Raquel Ruiz 1K
Posts: 30
Joined: Tue Nov 14, 2017 3:02 am

Re: 11.3 6th edition

Postby Raquel Ruiz 1K » Sun Jan 20, 2019 7:39 pm

That is a really good question! Usually we are supposed to balance the equation first before we do any other steps! In this case we were asked to only write the expression of K with no other calculations necessary, so maybe it was just practice to get us used to placing the coefficients where they belong when writing expressions for K. Regardless, I'm pretty sure we should always balance balance balance reactions!

eden tefera 2B
Posts: 39
Joined: Fri Sep 28, 2018 12:21 am

Re: 11.3 6th edition

Postby eden tefera 2B » Sun Jan 20, 2019 10:51 pm

I think the directions should tell you to balance it first.

Joon Chang 2F
Posts: 59
Joined: Fri Sep 28, 2018 12:25 am

Re: 11.3 6th edition

Postby Joon Chang 2F » Sun Jan 20, 2019 11:19 pm

I think they put 7N2 instead of 5N2 on mistake. However, you should always balance the equation first.

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