### Chemical Equilibrium Expressions#### Problem Statement:1. Write the equilibrium expression for each of the following reactions:#### Reactions:##### a)\[ 4 \text{NO}_{(g)} + 2 \text{O}_2{(g)} \rightleftharpoons 2 \text{N}_2\text{O}_4{(g)} \]##### c)\[ \text{CO}_{(g)} + 2 \text{H}_2{(g)} \rightleftharpoons \text{CH}_3\text{OH}{(g)} \]### Solution:#### a) For the reaction:\[ 4 \text{NO}_{(g)} + 2 \text{O}_2{(g)} \rightleftharpoons 2 \text{N}_2\text{O}_4{(g)} \]The equilibrium expression \( K_c \) is:\[ K_c = \frac{[\text{N}_2\text{O}_4]^2}{[\text{NO}]^4 [\text{O}_2]^2} \]#### c)For the reaction:\[ \text{CO}_{(g)} + 2 \text{H}_2{(g)} \rightleftharpoons \text{CH}_3\text{OH}{(g)} \]The equilibrium expression \( K_c \) is:\[ K_c = \frac{[\text{CH}_3\text{OH}]}{[\text{CO}] [\text{H}_2]^2} \]#### Explanation:The equilibrium constant expression \( K_c \) is derived from the balanced chemical equation. It is the ratio of the concentrations of the products to the concentrations of the reactants, each raised to the power of their respective stoichiometric coefficients.### Study Notes:* Ensure the reaction is balanced before writing the equilibrium expression.* Concentrations are denoted by square brackets, e.g., \([A]\).* The exponents in the expression correspond to the coefficients in the balanced equation.This content provides the foundational knowledge needed to understand and write equilibrium expressions for various chemical reactions.

Answered: Image /qna-images/answer/af508236-f5b8-40d8-9918-ae284ff2b413.jpg

Answered: 1. Write the equilibrium expression for…

1. Write the equilibrium expression for each of the following reactions: а) + 2 Oze) = 2 sN,04(e) c) CO, + 2 Hzie) = CH;OHe) 4 NO,

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: 1. Write the equilibrium constant expressions (K. and K.) for the following reactions: 4NH,(g) +…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: 1. Write the correct equilibrium-constant expressions for the following reactions: a) 2H,S(g) 2…

A: Equilibrium constant expressions for all the equations is given below.

Q: At 100 °C, the equilibrium constant for the reactionCOCl21g2 ∆ CO1g2 + Cl21g2 has the value Kc =2.19…

A: For a reversible reaction at any stage other than the equilibrium, the ratio of the products of the…

Q: The equilibrium constant Ksp for silver phosphate is 8.9x 1017 at 25°C. If you start with a solution…

A: GIVEN Ksp of Silver phosphate = 8.9 x 10-17 Concentration of Ag+ = 0.050 M To Calculate: Equilibrium…

Q: Construct an equilibrium expression for the following reaction. A,B,C, and D are hypothetical…

A: Introduction: Equilibrium expression can be expressed in two ways-------> 1) In terms of…

Q: CoCl4-2 {blue} + 6 H2O Co(H2O)6+2 {red} + 4 Cl- + heat

A: Co(H2O)62+(aq) + 4 Cl-(aq) <=> CoCl42-(aq) + 6 H2O(g) The Co(H2O)62+ complex is…

Q: Write the equilibrium constant expression, K, for the following reaction: (If either the numerator…

Q: . A chemist places a mixture of 2.30 mol of hydrogen gas, H2(g); 1.15 mol of nitrogen gas, N2(g);…

A: All the three subparts have been solved below.

Q: Which of the following statements is correct concerning the value of the equilibrium constant of the…

Q: Write the equilibrium constant expression, Kc, for the following reaction: Please enter the…

Q: i need help with this For the following reaction (A+B⇔C+D) , If the initial concentration of (A)…

A: The Given reaction is A + B ↔ C + D [A] = 2[B]. The initial concentration of [B] = 1 mol/L

Q: Write the equilibrium constant expression, K, for the following reaction: Please enter the compounds…

A: The equilibrium constant can be defined as the ratio of the product of the product species (each…

Q: Write the equilibrium constant expression,K , for the following reaction: (If either the numerator…

Q: Write the chemical equation that has the equilibriumconstant expression K eq = ([CO ] 2 [ O 2 ]) /…

A: The given expression for the equilibrium constant is, Keq=CO2O2CO22......(1) In the expression of…

Q: 10) For the reaction below at a certain time, temperature and pressure, the [CO2] is 2.24 M, [H*] is…

A: Given: [CO2] = 2.24 M [H+] = 0.058 M [HCO3-] = 0.097 M KC = 9.81 x 10-6

Q: What is the equilibrium constant expression for each reaction below? 3NaBr(aq) + CuN(s) →…

A: (1) Equilibrium constant expression = ?

Q: 2. Write the correct equilibrium-constant expressions for the following reactions:

A: For general equlibrium reaction aA + bB ⇔ cC + dD according to law of chemical…

Q: The equilibrium constant for the reaction A(g) B(g) is Keg = 1.2 x 103. %3! At equilibrium [A] =…

A: If the two opposing process in a reversible change are chemical change and the state in this change…

Q: The initial concentrations for the following reaction are [POCI,] = 0.049 M, [H,] = 0.052 M, [PH,] =…

A: The given reaction is: POCl3(g)+4H2(g)→PH3(g)+3HCl(g)+H2O(g) The ICE table is as follows:…

Q: Consider the equilibrium, 2A + B C . At equilibrium, the following concentrations are measured:…

A: Kc can be defined as the ratio of concentration of products and concentration of reactants at…

Q: 36) The equilibrium constant Ke for the reaction HF(aq) + H2O(1) =H3O+aq) +F-(aq) is 3.5 x 10-4.…

A: The equation concentration (KC) of the reaction is . The equilibrium concentration of HF is 1.0 M.…

Q: Write the equilibrium constant expression, K, for the following reaction: If either the numerator or…

A: The equilibrium constant has numerator and denominator parts.The numerator has products and the…

Q: Write the equilibrium constant expression for the reaction A(s)+ 3B(I) --> <--- 2C(aq)+D(aq) in…

A: Since in the equilibrium constant expression, the concentration of pure solids and liquid components…

Q: Find the equilibrium concentration expression for the following reaction 4HNO3 (aq) + 3Ag(s)…

A: Given that : We have to find the equilibrium concentration expression for the following reaction :…

Q: The reaction equilibrium constant N2 (g) + O2 (g) chemical balance NO (g) Kc = 1.00.10-5 at 1200 ºC…

Q: Write the equilibrium constant expression, Kc, for the following reaction: If either the numerator…

Q: Which of the following expressions is the correct equilibrium-constant expression for the following…

Q: At a particular temperature, K-2.0 X 10-5 for the reaction 2CO2(g)2CO+ O₂ (g) If 2.0 mol CO2 is…

A: Answer:For any reaction, value of equilibrium constant is equal to the ratio of molar concentration…

Q: 4. In an experiment, 0.2000 mole of H2 and 0.200 mole of l2 were mixed in a 2.00 Litre flask. If…

A: Given: The number of moles of H2 gas (hydrogen gas) is 0.2000 mole The number of moles of I2 gas…

Q: Hzlg) + Bra(1) = 2HBrig) K. 4.8x 105 Assume initial conditions of 0.400 MHlg) and excess Br). What…

A: Equilibrium constant gives the relation between concentration of reactants and products when the…

Q: what is the equilibrium constant expression of 2A + B --> 2C

A: Equilibrium constant is the ratio of product of concentration of products raised to their…

Q: 2HI -> H2 + 12 K = 3.2 x 10 - 16 If the initial concentration of HI is 0.2 mol/L, determine the…

A: First, we need to identify the initial concentrations of all entities in the reaction. The initial…

Q: Consider the reaction. A(aq) = 2B(aq) Kc = 5.04 x 10-6 at 500 K If a 5.20 M sample of A is heated to…

Q: The equilibrium constant for the reaction shown is 1.30 x 10-2 CH,(g)+ H,0(g) Co(g)+3H,(g) What is…

A: We have to predict the equilibrium constant for given reaction.

Q: The equilibrium constant for the reaction of chlorine gas with phosphorus trichloride to form…

A: The reaction's chemistry at equilibrium can be examined through equilibrium constant. It relates the…

Q: reaction

A: The relation between dissociation constant of acid and dissociation constant of base for conjugate…

Q: For the reaction below, Kc = 1.10 x 10-8. What is the equilibrium %3D concentration of OH- if the…

A: The reaction given is HONH2 (aq) + H2O (l) ------> HONH3+ (aq) + OH- (aq)

Q: Consider the reaction. A(aq) = 2 B(aq) K. = 2.00 × 10-6 at 500 K If a 3.80 M sample of A is heated…

A: Assuming y concentration of A is reacting to reach equilibrium hence the concentration of A at…

Q: NiCO3(s)N*(aq) + CO3²(aq) Ke

A: Given,

Q: 3. Write the equilibrium expression for the reaction, Zn 2(aq) + NH, (aq) → Zn (NH,), (aq) NH.CO,NH,…

A: At equilibrium, the rate of the forward and the reverse reaction is the same and the concentration…

Q: Consider the equilibrium, 2A + B C . At equilibrium, the following concentrations are measured:…

Q: At 800 K, the equilibrium constant for the reaction A2(g) = 2A(g) is Kc = 3.1 * 10-4. Based on the…

A: In the given reaction, a molecule A2 is dissociating into two atoms of A. So breaking of covalent…

Q: b. the system is at equilibrium, and dichlorine (Cl2) is added to the reaction (no change in…

Q: Given a solution whose equation is expressed below, identify the (a) shift in equilibrium (b) effect…

A: According to Le Chatelier’s principle, we can say that if any system in equilibrium faces any kind…

Q: Consider the cobalt-chloride ion equilibrium shown. Co(H,O)%*(aq)+4C1-(aq) = CoCl (aq) +6H,O) blue…

Question

### Chemical Equilibrium Expressions

#### Problem Statement:
1. Write the equilibrium expression for each of the following reactions:

#### Reactions:
##### a)
\[ 4 \text{NO}_{(g)} + 2 \text{O}_2{(g)} \rightleftharpoons 2 \text{N}_2\text{O}_4{(g)} \]

##### c)
\[ \text{CO}_{(g)} + 2 \text{H}_2{(g)} \rightleftharpoons \text{CH}_3\text{OH}{(g)} \]

### Solution:
#### a)
For the reaction:
\[ 4 \text{NO}_{(g)} + 2 \text{O}_2{(g)} \rightleftharpoons 2 \text{N}_2\text{O}_4{(g)} \]

The equilibrium expression \( K_c \) is:
\[ K_c = \frac{[\text{N}_2\text{O}_4]^2}{[\text{NO}]^4 [\text{O}_2]^2} \]

#### c)
For the reaction:
\[ \text{CO}_{(g)} + 2 \text{H}_2{(g)} \rightleftharpoons \text{CH}_3\text{OH}{(g)} \]

The equilibrium expression \( K_c \) is:
\[ K_c = \frac{[\text{CH}_3\text{OH}]}{[\text{CO}] [\text{H}_2]^2} \]

#### Explanation:
The equilibrium constant expression \( K_c \) is derived from the balanced chemical equation. It is the ratio of the concentrations of the products to the concentrations of the reactants, each raised to the power of their respective stoichiometric coefficients.

### Study Notes:
* Ensure the reaction is balanced before writing the equilibrium expression.
* Concentrations are denoted by square brackets, e.g., \([A]\).
* The exponents in the expression correspond to the coefficients in the balanced equation.

This content provides the foundational knowledge needed to understand and write equilibrium expressions for various chemical reactions.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

2C. Please don't write on a paper. I can't understand handwritten.
C2,H2905S- (ag) + NH,CI (ag) → C2,H29O5SH (ag) + NH3 (aq) Yellow Blue Reaction after it reaches equilibrium appears Green A. Assume the reaction mixture is at equilibrium, appearing green in color, and at room temperature before each of the following disturbances. Explain which direction the reaction shifts to re-establish equilibrium and predict how the color of the solution will change 1.100 mL of water, H2O is added to the reaction mixture. 2. Solid platinum, Pt, is added to the reaction mixture. It reacts with NH3 to form N and H2 gasses. B. When the green reaction mixture at equilibrium is heated the color changes to green-blue, and then eventually, a dark blue color. When the green reaction mixture at equilibrium is placed in an ice water bath the solution color changes to a yellow-green, and eventually a bright yellow color. Is the reaction exothermic or endothermic? |
What is the equilibrium expression for the following reaction? Zn(s) + 2NAOH(aq) + 2H,O(t) = Na,Zn(OH),(aq) + H2(g) [Na,Zn (OH) [H.] A [zn][NAOH]{[H,0]² K = [Na,Zn(OH) [H,] [NaOH]F[1,0}| B K= [Na,Zn(OH) [H,] [NAOH]? K = [Na,Zn(OH) [H,] [Zn][NaOH][H,0] D K =
4 Calculate the equilibrium constant, K, for the following: A + 2 B 3C +D when the equilibrium concentrations of each species were determined: [A] = 0.010 M, [B] = 0.15 M, [C] = 0.20 M, and [D] = 0.25 M.
For the following reaction and its equilibrium constant, determine whether the position of equilibrium lies towards reactants, towards products, or somewhere reasonably close to the middle (intermediate). NH3(aq) + HBrO(aq) ⇒ NH4*(aq) + BrO (aq) K = 5.0
II. For each of the following reactions, write the equilibrium constant (k) expression. 01. 02. 03. 04. 05. CO2 Pb,0. (s) CH, Ag.O (s) HCI + co PbO (s) CS2 Ag (s) Cl, O2 O2 H2 H;S O2 H,O + + + + +
Write the equilibrium constant expression for this reaction: 2 CH₂COO (aq)+C₂H6O₂(aq) → C6H1004(aq)+2 OH (aq) HEATIN RE 7² 3 7 FIN _ X S HOME P ? PO 10002 HEMER po HOTE ALUM KREMO M
Fe3+ + SCN- <---> FeNCS2+ Given that Keq= 299, the initial concentration of Fe3+ is 0.04 M, and the initial concentration of SCN- is 0.001 M, calculate the final concentrations of each species in the reaction at equilibrium.
What is the equilibrium-constant expression for the following reaction?N2O4 (g) <--> 2NO2 (g)
Find the equilibrium concentration expression for the following reaction 4HNO3(aq)+3Ag(s)-->3AgNO3(aq)+NO(g)+2H2O
6. Give the equilibrium constant for the following reaction. 2PB1, (g) + 3Cl,(s) 2PCI;(g) + 3Br,(g)