Need chemistry help to Consider the following reaction: 2HF(g) H2(g) + F2(g) (Kc = 1.00 x 10–2)

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Consider the following reaction:

2HF(g)  H2(g) + F2(g)     (Kc = 1.00 x 10–2)

Given that 1.00 mol of HF(g), 0.371 mol of H2(g), and 0.750 mol of F2(g) are mixed in a 5.00-L flask, determine the reaction quotient, Q.

Select one:

Nov 8th, 2015

Thank you for the opportunity to help you with your question!

[HF(g)] = 1/5 = 0.2M 

[H2(g)] = 0.371/5 = 0.0742 M

[F2(g)] = 0.750/5 =0.150 M

This reaction quotient = 0.0742*0.150/(0.2*0.2) = 0.278

Hence correct answer is (b)

Please let me know if you need any clarification. I'm always happy to answer your questions.
Nov 8th, 2015

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