At equilibrium, the mixture contained 0.00272 M \(NH_3\). a_{H_2O}} \dfrac{[H_3O^+][F^-]}{[HF](1)} = \dfrac{[H_3O^+][F^-]}{[HF]} \]. This problem has been solved! We can check the results by substituting them back into the equilibrium constant expression to see whether they give the same \(K\) that we used in the calculation: \[K=\dfrac{[\text{isobutane}]}{[\text{n-butane}]}=\left(\dfrac{0.72\; \cancel{M}}{0.28\;\cancel{M}}\right) =2.6 \nonumber \]. , Posted 7 years ago. Initial reactant and product concentrations and equilibrium concentrations (in M) are given as well as the equilibrium constants (at 25 C). Write the equilibrium equation for the reaction. This equation can be solved using the quadratic formula: \[ x = \dfrac{-b \pm \sqrt{b^2-4ac}}{2a} = \dfrac{0.127 \pm \sqrt{(0.127)^24(0.894)(0.0382)}}{2(0.894)}\nonumber \], \[x =0.148 \text{ and } 0.290\nonumber \]. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. In order to reach equilibrium, the reaction will. At equilibrium, both the concentration of dinitrogen tetroxide and nitrogen dioxide are not changing with time. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Direct link to Lily Martin's post why aren't pure liquids a, Posted 6 years ago. This expression might look awfully familiar, because, From Le Chteliers principle, we know that when a stress is applied that moves a reaction away from equilibrium, the reaction will try to adjust to get back to equilbrium. start text, a, A, end text, plus, start text, b, B, end text, \rightleftharpoons, start text, c, C, end text, plus, start text, d, D, end text, K, start subscript, start text, c, end text, end subscript, K, start subscript, start text, e, q, end text, end subscript, K, start subscript, start text, c, end text, end subscript, equals, start fraction, open bracket, start text, C, close bracket, end text, start superscript, start text, c, end text, end superscript, start text, open bracket, D, close bracket, end text, start superscript, start text, d, end text, end superscript, divided by, open bracket, start text, A, end text, close bracket, start superscript, start text, a, end text, end superscript, open bracket, start text, B, end text, close bracket, start superscript, start text, b, end text, end superscript, end fraction, start text, N, O, end text, start subscript, 2, end subscript, start text, N, end text, start subscript, 2, end subscript, start text, O, end text, start subscript, 4, end subscript, start text, N, end text, start subscript, 2, end subscript, start text, O, end text, start subscript, 4, end subscript, left parenthesis, g, right parenthesis, \rightleftharpoons, 2, start text, N, O, end text, start subscript, 2, end subscript, left parenthesis, g, right parenthesis, start text, N, end text, start subscript, 2, end subscript, start text, O, end text, start subscript, 4, end subscript, left parenthesis, g, right parenthesis, start fraction, start text, m, o, l, end text, divided by, start text, L, end text, end fraction, open bracket, start text, C, close bracket, end text, start text, open bracket, D, close bracket, end text, open bracket, start text, A, end text, close bracket, open bracket, start text, B, end text, close bracket, K, start subscript, start text, p, end text, end subscript, 2, start text, S, O, end text, start subscript, 2, end subscript, left parenthesis, g, right parenthesis, plus, start text, O, end text, start subscript, 2, end subscript, left parenthesis, g, right parenthesis, \rightleftharpoons, 2, start text, S, O, end text, start subscript, 3, end subscript, left parenthesis, g, right parenthesis, K, start subscript, start text, c, end text, end subscript, equals, start fraction, open bracket, start text, S, O, end text, start subscript, 3, end subscript, close bracket, squared, divided by, open bracket, start text, S, O, end text, start subscript, 2, end subscript, close bracket, squared, open bracket, start text, O, end text, start subscript, 2, end subscript, close bracket, end fraction, K, start subscript, start text, c, end text, end subscript, equals, 4, point, 3, Q, equals, start fraction, open bracket, start text, S, O, end text, start subscript, 3, end subscript, close bracket, squared, divided by, open bracket, start text, S, O, end text, start subscript, 2, end subscript, close bracket, squared, open bracket, start text, O, end text, start subscript, 2, end subscript, close bracket, end fraction, Q, equals, K, start subscript, start text, c, end text, end subscript, start text, N, end text, start subscript, 2, end subscript, start text, O, end text, start subscript, 2, end subscript, start text, N, end text, start subscript, 2, end subscript, left parenthesis, g, right parenthesis, plus, start text, O, end text, start subscript, 2, end subscript, left parenthesis, g, right parenthesis, \rightleftharpoons, 2, start text, N, O, end text, left parenthesis, g, right parenthesis, K, start subscript, start text, c, end text, end subscript, equals, start fraction, start text, open bracket, N, O, end text, close bracket, squared, divided by, open bracket, start text, N, end text, start subscript, 2, end subscript, close bracket, open bracket, start text, O, end text, start subscript, 2, end subscript, close bracket, end fraction, 3, point, 4, times, 10, start superscript, minus, 21, end superscript, open bracket, start text, N, end text, start subscript, 2, end subscript, close bracket, equals, open bracket, start text, O, end text, start subscript, 2, end subscript, close bracket, equals, 0, point, 1, start text, M, end text, start text, N, O, end text, left parenthesis, g, right parenthesis, K, start subscript, start text, c, end text, end subscript, equals, start fraction, start text, open bracket, N, O, end text, close bracket, squared, divided by, open bracket, start text, N, end text, start subscript, 2, end subscript, close bracket, open bracket, start text, O, end text, start subscript, 2, end subscript, close bracket, end fraction, space, space, space, space, space, space, space, space, space, space, space, space, space, space, space, space, start text, G, e, t, space, t, h, e, space, N, O, space, t, e, r, m, space, b, y, space, i, t, s, e, l, f, space, o, n, space, o, n, e, space, s, i, d, e, point, end text.
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