What is the equilibrium constant expression for the following reaction: HCN(aq) + H2O(l)↔CN−(aq) + H3O+(aq) Choose...

What is the equilibrium constant expression for the following reaction:

HCN(aq) + H₂O(l)↔CN⁻(aq) + H₃O⁺(aq)

Choose from the list below and enter the letters alphabetical order. (e.g. For an equilibrium constant of [H₃O⁺]^-1_eq[HCN]_eq enter AH.)

A) [HCN]_eq	E) [HCN]^-1_eq	I) [Ru(NH₃)₆²⁺]⁶_eq
B) [H₂O]_eq	F) [H₂O]^-1_eq	J) [Ru²⁺]^-6_eq
C) [CN^-]_eq	G) [CN^-]^-1_eq	K) [NH₃]^-6_eq
D) [H₃O⁺]_eq	H) [H₃O⁺]^-1_eq	L) [Ru(NH₃)₆²⁺]^-6_eq

Expert Solution

Equilibrium constant expression is the ratio of concentration terms of products to reactants.

The activity of solids and liquids is one so they do not participate in equilibrium constant expression.

K = [CN^-]eq[H₃O⁺]eq / [HCN]aq

so the order is CDE

queen_honey_blossom answered 2 years ago

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