(a) Explanation It is given that: The initial mass of Br 2 is 70.31 g . The initial mass of H 2 is 1.374 g . The initial mass of HBr is 0.0 g . At equilibrium, the mass of H 2 is 0.566 g . The volume of the vessel is 2.0 L . It means the volume of the reaction mixture is 2.0 L . Molar mass of Br 2 is calculated as, 2 × ( 79.904 g/mol ) = 159.808 g/mol The initial number of moles of Br 2 is calculated by the formula., Initial moles of Br 2 = Initial mass of Br 2 Molar mass of Br 2 Substitute the value of the initial mass of Br 2 and molar mass of Br 2 in the above equation. Initial moles of Br 2 = 70.31 g 159.808 g/mol = 0.44 mol The initial concentration (molarity) of Br 2 is calculated by the formula, Molarity = Initial moles of Br 2 Volume of reaction mixture Substitute the value of initial moles of Br 2 and the volume of reaction mixture in the above equation. Molarity = 0.44 mol 2 .0 L = 0.22 M In a similar way, the initial concentrations of H 2 and HBr are 0.34 M and 0.0 M and the concentration of H 2 at equilibrium is 0.14 M . The change in the concentration of H 2 is calculated as, Δ [ H 2 ] = [ H 2 ] 0 − [ H 2 ] eq Where, Δ [ H 2 ] is the change in the concentration of H 2 . [ H 2 ] 0 is the initial concentration of H 2 . [ H 2 ] eq is the concentration of H 2 at equilibrium. Substitute the value of [ H 2 ] 0 and [ H 2 ] eq in the above equation. Δ [ H 2 ] = 0.34 M − 0.14 M = 0.20 M The reaction is given as, H 2 ( g ) + Br 2 ( g ) ⇌ 2HBr ( g ) The change in the concentration of Br 2 is calculated as, 1 mol of H 2 react with = 1 mol of Br 2 0 (b) Interpretation Introduction To determine: The equilibrium constant, K c of the given reaction.

Chemistry: The Central Science Plus Mastering Chemistry with Pearson eText -- Access Card Package (14th Edition)

14th Edition

ISBN: 9780134292816

Author: Theodore E. Brown, H. Eugene LeMay, Bruce E. Bursten, Matthew E. Stoltzfus

Publisher: PEARSON

See similar textbooks

Videos

Question

Chapter 15, Problem 36E

(a)

Interpretation Introduction

To determine:
The equilibrium concentrations of H2 , Br2 and HBr .

(b)

Interpretation Introduction

To determine:
The equilibrium constant, Kc of the given reaction.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 15, Problem 35E

Chapter 15, Problem 37E

Students have asked these similar questions

4. Provide a clear arrow-pushing mechanism for each of the following reactions. Do not skip proton transfers, do not combine steps, and make sure your arrows are clear enough to be interpreted without ambiguity. a. 2. 1. LDA 3. H3O+ HO

b. H3C CH3 H3O+ ✓ H OH

2. Provide reagents/conditions to accomplish the following syntheses. More than one step is required in some cases. a. CH3

Chapter 15 Solutions

Chemistry: The Central Science Plus Mastering Chemistry with Pearson eText -- Access Card Package (14th Edition)

Ch. 15.2 - Prob. 15.1.1PE Ch. 15.2 - Prob. 15.1.2PE Ch. 15.2 - Prob. 15.2.1PE Ch. 15.2 - Prob. 15.2.2PE Ch. 15.3 - Prob. 15.3.1PE Ch. 15.3 - Practice Exercise 2 For the reaction H2 (g) + I2...Ch. 15.3 - Prob. 15.4.1PE Ch. 15.3 - Prob. 15.4.2PE Ch. 15.4 - Prob. 15.5.1PE Ch. 15.4 - Prob. 15.5.2PE

Ch. 15.4 - Practice Exercise 1 If 8.0 g of NH4HS(s)...Ch. 15.4 - Prob. 15.6.2PE Ch. 15.5 - Practice Exercise 1 A mixture of gaseous sulfur...Ch. 15.5 - Prob. 15.7.2PE Ch. 15.5 - Practice Exercise 1 In Section 15.1, we discussed...Ch. 15.5 - Practice Exercise 2 The gaseous compound BrCl...Ch. 15.6 - Prob. 15.9.1PE Ch. 15.6 - Practice Exercise 2 At 1000 k, the value of Kp for...Ch. 15.6 - Prob. 15.10.1PE Ch. 15.6 - Prob. 15.10.2PE Ch. 15.6 - Practice Exercise 1 For the equilibrium Br2(g) +...Ch. 15.6 - Prob. 15.11.2PE Ch. 15.7 - Practice Exercise 1 For the reaction 4 NH3(g) + 5...Ch. 15.7 - Prob. 15.12.2PE Ch. 15 - Prob. 1DE Ch. 15 - Based on the following energy profile, predict...Ch. 15 - 15.2 The following diagrams represent a...Ch. 15 - Prob. 3E Ch. 15 - Prob. 4E Ch. 15 - Prob. 5E Ch. 15 - 15.6 Ethene (C2H4) reacts with healogens (X2) by...Ch. 15 - When lead(IV) oxide is heated above 300 O C, it...Ch. 15 - Prob. 8E Ch. 15 - The reactin A2(g) + B(g) + A(g) + AB(g) has an...Ch. 15 - Prob. 10E Ch. 15 - Prob. 11E Ch. 15 - The following graph represents the yield of the...Ch. 15 - Suppose that the gas-phase reactions A B and B A...Ch. 15 - Prob. 14E Ch. 15 - Prob. 15E Ch. 15 - Write the expression for KC for the following...Ch. 15 - When the following reaction come to equilibrium,...Ch. 15 - Prob. 18E Ch. 15 - Prob. 19E Ch. 15 - Prob. 20E Ch. 15 - If Kc = 0.042 for PC13(g) + C12 (g) PC15 (g) at...Ch. 15 - Prob. 22E Ch. 15 - 15.23 The equilibrium constant for the...Ch. 15 - Prob. 24E Ch. 15 - Prob. 25E Ch. 15 - Prob. 26E Ch. 15 - The following equilibria were attained at 823 K:...Ch. 15 - Consider the equilibrium N2(g) + O2(g) + Br2(g) 2...Ch. 15 - Mercury(I) oxide decomposes into elemental mercury...Ch. 15 - Prob. 30E Ch. 15 - Prob. 31E Ch. 15 - Prob. 32E Ch. 15 - Prob. 33E Ch. 15 - Phosphorus trichloride gas and chlorine gas react...Ch. 15 - A mixture of 0.10 mol of NO, 0.050 mol of H2, and...Ch. 15 - Prob. 36E Ch. 15 - A mixture of 0.2000 mol of CO2, 0.1000 mol of H2,...Ch. 15 - 15.38 A flask is charged with 1.500 atm of N2O4(g)...Ch. 15 - Prob. 39E Ch. 15 - Prob. 40E Ch. 15 - a. If QC KC, in which direction will a reaction...Ch. 15 - Prob. 42E Ch. 15 - At 100 OC , the equilibrium constant for the...Ch. 15 - 15.44 As shown in Table 15.2, KP for the...Ch. 15 - At 100 C, K = 0.078 for the reaction SO2Cl2 (g) ...Ch. 15 - Prob. 46E Ch. 15 - Prob. 47E Ch. 15 - Prob. 48E Ch. 15 - At 800 k, the equilibrium constant for I2 (g) ...Ch. 15 - Prob. 50E Ch. 15 - At 2000 OC, the equilibrium constant for the...Ch. 15 - For the equilibrium Br2 (g) + Cl2 (g) 2BrCl(g) At...Ch. 15 - At 373 k, Kp = 0.416 for the equilibrium 2NOBr (g)...Ch. 15 - At 218 oC, KC= 1.2 X 10-4 for the equilibrium NH4...Ch. 15 - Prob. 55E Ch. 15 - At 80 oC, K =1.87 X 10-3 for the reaction PH3 BCl3...Ch. 15 - Prob. 57E Ch. 15 - Prob. 58E Ch. 15 - Prob. 59E Ch. 15 - Prob. 60E Ch. 15 - Consider the following equilibrium for which H<0...Ch. 15 - Prob. 62E Ch. 15 - 15.63 How do the following changes affect the...Ch. 15 - Prob. 64E Ch. 15 - Consider the following equilibrium between oxides...Ch. 15 - Prob. 66E Ch. 15 - Ozone, O3, decomposes to molecular oxygen in the...Ch. 15 - Prob. 68E Ch. 15 - Prob. 69E Ch. 15 - 15.70 True or false: When the temperature of an...Ch. 15 - Prob. 71AE Ch. 15 - Prob. 72AE Ch. 15 - 15.73 A mixture of CH4 and H2O is passed over a...Ch. 15 - Prob. 74AE Ch. 15 - Prob. 75AE Ch. 15 - Prob. 76AE Ch. 15 - Prob. 77AE Ch. 15 - Prob. 78AE Ch. 15 - Prob. 79AE Ch. 15 - For the equilibrium PH3BCI3 (s) PH3 (g) + BCI3...Ch. 15 - Prob. 81AE Ch. 15 - Prob. 82AE Ch. 15 - Prob. 83AE Ch. 15 - At 900 o C, Kc = 0.0108 for the reaction CaCO3(g) ...Ch. 15 - Prob. 85AE Ch. 15 - The equilibrium constant Kc for C(s) +CO2 2CO(g)...Ch. 15 - Prob. 87AE Ch. 15 - Le Chatelier noted that many industrial processes...Ch. 15 - Prob. 89AE Ch. 15 - Prob. 90AE Ch. 15 - [15.91] An equilibrium mixture of H2, I2, and HI...Ch. 15 - Consider the hypothetical reaction A(g) + 2B(g) 2...Ch. 15 - Prob. 93AE Ch. 15 - Prob. 94AE Ch. 15 - Prob. 95IE Ch. 15 - The following equilibria were measured at 823 K:...Ch. 15 - Prob. 97IE Ch. 15 - Prob. 98IE Ch. 15 - At 800 K, the equilibrium constant for the...Ch. 15 - Prob. 100IE Ch. 15 - Prob. 101IE Ch. 15 - Prob. 102IE

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.

The equilibrium concentrations of H 2 , Br 2 and HBr .

Videos

To determine: The equilibrium concentrations of H2 , Br2 and HBr .

To determine: The equilibrium constant, Kc of the given reaction.

Want to see the full answer?

Chapter 15 Solutions

To determine:
The equilibrium concentrations of H2 , Br2 and HBr .

To determine:
The equilibrium constant, Kc of the given reaction.