Equilibruim Assessment

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beckyolmedo1G
Posts: 34
Joined: Fri Sep 28, 2018 12:21 am

Equilibruim Assessment

Postby beckyolmedo1G » Wed Mar 13, 2019 11:23 pm

A mixture initially consisting of 0.250 N2 (g) and 0.500 M H2 (g) reacts to form NH3 (g) which is 0.15 M NH3 (g) at equilibrium. Calculate the concentration of N2 (g) at equilibrium for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g)

can someone help me find the concentration of N2? Above is everything that is given in the problem.

Sarah Fatkin 4I
Posts: 71
Joined: Fri Sep 28, 2018 12:27 am

Re: Equilibruim Assessment

Postby Sarah Fatkin 4I » Wed Mar 13, 2019 11:57 pm

You should try using an ICE chart using the initial concentrations given as well as the concentration of NH3 at equilibrium. Hope this helps!

beckyolmedo1G
Posts: 34
Joined: Fri Sep 28, 2018 12:21 am

Re: Equilibruim Assessment

Postby beckyolmedo1G » Thu Mar 14, 2019 12:03 am

Thank you!!

Ethan Breaux 2F
Posts: 63
Joined: Sat Sep 29, 2018 12:16 am

Re: Equilibruim Assessment

Postby Ethan Breaux 2F » Thu Mar 14, 2019 12:51 am

don't forget if the x value is very small (i.e. less than 10^-3) you can ignore the x when subtracting it from another value!

Jacqueline Duong 1H
Posts: 61
Joined: Fri Sep 28, 2018 12:28 am

Re: Equilibruim Assessment

Postby Jacqueline Duong 1H » Thu Mar 14, 2019 4:32 am

to add on to the x being small, if it is less than 5% of the initial value, then x is negligible when adding or subtracting from a number

beckyolmedo1G
Posts: 34
Joined: Fri Sep 28, 2018 12:21 am

Re: Equilibruim Assessment

Postby beckyolmedo1G » Thu Mar 14, 2019 3:34 pm

Ethan Breaux 2F wrote:don't forget if the x value is very small (i.e. less than 10^-3) you can ignore the x when subtracting it from another value!


I thought if K is less than 10^-3 then we can estimate? Not x?


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