At equilibrium, the concentrations of reactants and products
can be predicted using the equilibrium constant, KcKcK_c, which is
a mathematical expression based on the chemical equation. For
example, in the reaction
aA+bB⇌cC+dDaA+bB⇌cC+dD where aaa, bbb, ccc, and ddd are the stoichiometric coefficients, the equilibrium constant is Kc=[C]c[D]d[A]a[B]bKc=[C]c[D]d[A]a[B]b where [A][A], [B][B], [C][C], and [D][D] are the equilibrium concentrations. If the reaction is not at equilibrium, the quantity can still be calculated, but it is called the reaction quotient, QcQcQ_c, instead of the equilibrium constant, KcKcK_c. Qc=[C]tc[D]td[A]ta[B]tbQc=[C]tc[D]td[A]ta[B]tb where each concentration is measured at some arbitrary time ttt. |
Part A A mixture initially contains AA, BB, and CC in the following concentrations: [A][A]A_1 = 0.450 MM , [B][B]B_1 = 0.750 MM , and [C][C]C_1 = 0.650 MM . The following reaction occurs and equilibrium is established: A+2B⇌CA+2B⇌C At equilibrium, [A][A]A_2 = 0.300 MM and [C][C]C_2 = 0.800 MM . Calculate the value of the equilibrium constant, KcKcK_c. Express your answer numerically. |
A + 2B ⇌ C
I(M) 0.450 0.750 0.650
E(M) 0.450-x 0.750-2x 0.650+x
According to question,
0.650+x = 0.800
x = 0.150 M
[A]eq = 0.450-x = 0.300 M
[B]eq = 0.750-2x= 0.450 M
[C]eq = 0.650+x = 0.800 M
Kc = [C]eq/[A]eq[B]2eq
Kc = [0.800 M/0.300 M x (0.450 M)2]
Kc = 13.17
At equilibrium, the concentrations of reactants and products can be predicted using the equilibrium constant, KcKcK_c,...
At equilibrium, the concentrations of reactants and products can be predicted using the equilibrium constant, Kc, which is a mathematical expression based on the chemical equation. For example, in the reaction aA+bB?cC+dD where a, b, c, and d are the stoichiometric coefficients, the equilibrium constant is Kc=[C]c[D]d[A]a[B]b where [A], [B], [C], and [D] are the equilibrium concentrations. If the reaction is not at equilibrium, the quantity can still be calculated, but it is called the reaction quotient, Qc, instead of...
At equilibrium, the concentrations of reactants and products can be predicted using the equilibrium constant, Kc, which is a mathematical expression based on the chemical equation. For example, in the reaction aA+bB⇌cC+dD where a, b, c, and d are the stoichiometric coefficients, the equilibrium constant is Kc=[C]c[D]d[A]a[B]b where [A], [B], [C], and [D] are the equilibrium concentrations. If the reaction is not at equilibrium, the quantity can still be calculated, but it is called the reaction quotient, Qc, instead of...
At equilibrium, the concentrations of reactants and products can be predicted using the equilibrium constant, Kc , which is a mathematical expression based on the chemical equation. For example, in the reaction aA+bB⇌cC+dD where a , b , c , and d are the stoichiometric coefficients, the equilibrium constant is Kc=[C]c[D]d[A]a[B]b where [A] , [B] , [C] , and [D] are the equilibrium concentrations. If the reaction is not at equilibrium, the quantity can still be calculated, but it is...
At equilibrium, the concentrations of reactants and products can be predicted using the equilibrium constant, Kc, which is a mathematical expression based on the chemical equation. For example, in the reaction aA+bB⇌cC+dD where a, b, c, and d are the stoichiometric coefficients, the equilibrium constant is Kc=[C]c[D]d[A]a[B]b where [A], [B], [C], and [D] are the equilibrium concentrations. If the reaction is not at equilibrium, the quantity can still be calculated, but it is called the reaction quotient, Qc, instead of...
At equilibrium, the concentrations of reactants and products can be predicted using the equilibrium constant, Kc, which is a mathematical expression based on the chemical equation. For example, in the reaction aA+bB⇌cC+dD where a, b, c, and d are the stoichiometric coefficients, the equilibrium constant is Kc=[C]c[D]d[A]a[B]b where [A], [B], [C], and [D] are the equilibrium concentrations. If the reaction is not at equilibrium, the quantity can still be calculated, but it is called the reaction quotient, Qc, instead of...
At equilibrium, the concentrations of reactants and products can be predicted using the equilibrium constant, Kc, which is a mathematical expression based on the chemical equation. For example, in the reaction Part A aA + bB = CC + dD A mixture initially contains A, B, and C in the following concentrations: [A] = 0.350 M , [B] = 1.15 M, and [C] = 0.600 M. The following reaction occurs and equilibrium is established: where a, b, c, and d...
At equilibrium, the concentrations of reactants and products can be predicted using the equilibrium constant, Kc, which is a mathematical expression based on the chemical equation. For example, in the reaction Part A aA +bB = C+ dD A mixture initially contains A, B, and C in the following concentrations: [A] = 0.500 M , [B] = 1.35 M , and [C] = 0.500 M. The following reaction occurs and equilibrium is established: where a, b, c, and d are...
Review Constants Periodic Ta At equilibrium, the concentrations of reactants and products can be predicted using the equilibrium constant, Ke, which is a mathematical expression based on the chemical equation. For example, in the reaction Part A A+B=C+ dD where a, b, c, and d are the stoichiometric coefficients, the equilibrium constant is KID A mixture initially contains A, B and in the following concentrations: A = 0.500 MB] =0.950 M and C -0300 M The following reaction occurs and...
Item 9 equilibrium, the concentrations of reactants and can be predicted using the equilbnum constant Ke which is a mathematical expression based on the chemical equation. For example, in where a, b, c, and dave the stoichiometric coeficents, the equilibrium constant is where lAl. IB), ICM. and D) are the equilibrium is not at equilibrium, concentrations the reaction the quantry can still be calculated, but it is called the reaction quotert, Qe instead of the equlbrun constant. where each concentraMon...
n Review | Constants | Periodic Table Part A At equilibrium, the concentrations of reactants and products can be predicted using the equilibrium constant, Kc, which is a mathematical expression based on the chemical equation. For example, in the reaction A mixture initially contains A, B, and C in the following concentrations: [A] = 0.450 M, [B] = 0.650 M, and [C] = 0.700 M. The following reaction occurs and equilibrium is established: aA + bB = CC + dD...