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tdyson3p6xvtu
01.08.2019 •
Chemistry
At 350 k, kc = 0.142 for the reaction 2 brcl(g) ⇀↽ br2(g) + cl2(g) an equilibrium mixture at this temperature contains equal concentrations of bromine and chlorine, 0.043 mol/l. what is the equilibrium concentration of brcl? answer in units of m.
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Ответ:
The equilibrium equation will be:
Kc = ([Br2][Cl2])/[BrCl]^2
The square factor for BrCl is due to the 2 coefficient on that side of the equation.
Now solve for BrCl, substitute the known values and calculate.
Kc = ([Br2][Cl2])/[BrCl]^2
[BrCl]^2 * Kc = ([Br2][Cl2])
[BrCl]^2 = ([Br2][Cl2])/Kc
[BrCl] = sqrt(([Br2][Cl2])/Kc)
[BrCl] = sqrt(0.043 mol/l * 0.043 mol/l / 0.142)
[BrCl] = sqrt(0.001849 mol^2/l^2 / 0.142)
[BrCl] = sqrt(0.013021127 mol^2/l^2)
[BrCl] = 0.114110152 mol/l
Rounding to 3 significant figures gives 0.114 mol/l
Ответ:
En el mito de Aracne hay un acto, que se desarrolla con cinco escenas.
Explanation:
En el mito de Aracne hay un solo acto, que se desarrolla con cinco escenas. En este mito, la joven Aracne es muy hábil tejiendo, tanto así se enorgullece de su talento que se compara y se considera mejor que la diosa Atenea. Esto último ofende a la divinidad, que le advierte sobre su egocentrismo, lo que lleva a que ambas mujeres participen en una competencia. Aracne demuestra ser muy hábil pero irrespetuosa, lo que hace enfadar a la diosa. Al final, la joven se da cuenta de su error y se ahorca, pero Atenea se apiada de ella y la transforma en una araña.