Netflix Kathryn Bru Consider the following reaction Grade A

Netflix : Kathryn Bru Consider the following reaction. Grade Alaq) 3Blaq) K, 8.90 x 10\'. at500 K If a 2.70 M sample of A is heated is the concentration of B at equilibrium? You can You can glve up c You have There is n click to edt [B]- .06 0 Help With O Web Help O Technical Su help

Solution

We are given the equillibrium reaction,

A (aq) 3B (aq)                        at 500 K

We know that at equillibrium,

K_c = [B]³ / [A]

where,

K_c = Equillibrium Constant

[A] = Concentration of A at equillibrium

[B] = Concentration of B at equillibrium

We are given,

K_c = 8.90 * 10^-6

[A] = 2.70 M

On substituting given values in above formula we get,

K_c = [B]³ / [A]

8.90 * 10^-6 = [B]³ / [2.70 M]

[B]³ = ( 8.90 * 10^-6 ) * (2.70 M)

[B]³ = 2.403 * 10^-5 M

[B] = 2.403 * 10^-5 M

[B] = 0.0289 M