Write the equilibrium K expression.
Substitute the numbers for the concentrations shown at equilibrium.
Calculate K.
I'll be glad to check your work if you post it.
Hi this question is on my study guide and I want to make sure I get to the right answer and know why.
Calculate K for the synthesis of ammonia at 400°C
N2(g) + 3 H2(g) —> 2 NH3(g)
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, if the following concentrations are present at equilibrium: N2(g)= 1.2 mol/L, H2(g) = 0.80 mol/L, and NH3(g) = 0.28 mol/L.
(Subscript 2 in N2, 3 H2, and subscript 3 in 2 NH3, double arrows in reaction)
4 answers
K = (0.28)^2 / 1.2 ( 0.80)^3 =1.28 x 10^-1 ?
I agree. Good work. If your prof is picky about significant figures, s/he will object to using 3 s.f. in the answer when you have only 2 in the numbers; therefore, you may want to round that final answer to 0.13
Thanks