For Practice 14.9 The reaction N2(g) O2 (g) 2NO(g) is carried out at a temperatu

Question

For Practice 14.9 The reaction N2(g) O2 (g) 2NO(g) is carried out at a temperature at which Kc 0.060 The reaction mixture starts with only the product, NO 0.0300 M, and no reactants. Part A Find the equilibrium concentrations of N2, O2, and NO at equilibrium. Express your answer to two significant figures and include the appropriate units N2 Value Units Submit My Answers Give U Incorrect, Try Again, 5 attempts remaining Part B Express your answer to two significant figures and include the appropriate units Value Units Submit My Answers Give Up Part C Express your answer to two significant figures and include the appropriate units NO Value Units Submit My Answers Give Up

Explanation / Answer

N2(g)+O2(g) <==> 2NO(g) Kc= 0.060

ICE TABLE:
I _______0_______0 _______0.0300
C ______+x______+x______-2x
E_______ x_______x______0.0300-2x

Kc =( [0.0300-2x]^2)/([x]*[x])
0.060 = ( [0.0300-2x]^2)/([x]*[x])
Solve for x==> x=0.017

Therefore: [N2] = 0.013 M;

[N2] = 1.3x10-2 M;

[O2] = 0.013 M;

[O2] = 1.3x10-2 M;

[NO] = 0.0300-2(0.013)= 0.0040 M.

4.0x10 M

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