Calculate the equilibrium concentrations at 25 °C for the reaction in Problem 15.84 if the initial concentrations are 3N2O44 = 0.0200 M and 3NO24 = 0.0300 M.

Guida verificata passo dopo passo

Identify the balanced chemical equation for the reaction. For example, if the reaction is \( N_2O_4 \rightleftharpoons 2NO_2 \), write it down.

Write the expression for the equilibrium constant \( K_c \) using the balanced equation. For the example reaction, \( K_c = \frac{[NO_2]^2}{[N_2O_4]} \).

Set up an ICE (Initial, Change, Equilibrium) table to track the concentrations of reactants and products. Use the initial concentrations given: \([N_2O_4]_0 = 0.0200\, M\) and \([NO_2]_0 = 0.0300\, M\).

Define the change in concentration using a variable, such as \( x \), and express the equilibrium concentrations in terms of \( x \). For example, if \( N_2O_4 \) decreases by \( x \), then \( NO_2 \) increases by \( 2x \).

Substitute the equilibrium concentrations into the \( K_c \) expression and solve for \( x \). Use this value to find the equilibrium concentrations of all species.

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.

Durata del video:

16m

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Chemical Equilibrium

Chemical equilibrium occurs when the rates of the forward and reverse reactions are equal, resulting in constant concentrations of reactants and products. At this state, the system is dynamic, meaning that reactions continue to occur, but there is no net change in concentration. Understanding this concept is crucial for calculating equilibrium concentrations.

Video consigliato:

Percorso guidato

04:21

Chemical Equilibrium Concepts

Equilibrium Constant (K)

The equilibrium constant (K) is a numerical value that expresses the ratio of the concentrations of products to reactants at equilibrium, each raised to the power of their coefficients in the balanced equation. It provides insight into the position of equilibrium and helps predict how changes in concentration, temperature, or pressure will affect the system.

Video consigliato:

Percorso guidato

01:14

Equilibrium Constant K

ICE Table (Initial, Change, Equilibrium)

An ICE table is a tool used to organize the initial concentrations, the changes in concentrations as the reaction proceeds, and the equilibrium concentrations of reactants and products. By setting up an ICE table, one can systematically calculate the equilibrium concentrations based on the initial conditions and the stoichiometry of the reaction.

Video consigliato:

Percorso guidato

01:14

ICE Charts and Equilibrium Amount

Pratica correlata

Domanda del libro di testo

The industrial solvent ethyl acetate is produced by the reac-tion of acetic acid with ethanol: CH3CO2H1soln2 + CH3CH2OH1soln2 ∆ CH3CO2CH2CH31soln2 + H2O1soln2 Ethyl acetate (b) A solution prepared by mixing 1.00 mol of acetic acid and 1.00 mol of ethanol contains 0.65 mol of ethyl ace- tate at equilibrium. Calculate the value of Kc. Explain why you can calculate K without knowing the volume of the solution.

644

views