A flask is charged with 0.140 mol of A and allowed to react to form B according to the following hypothetical gas-phase reaction. A(g) → B(g) The following data are collected. times (s) Os 0 moles of A mol 0 40 0.140 0.068 80 (a) Calculate the number of moles of B at each time in the table. 0.043 120 160 0.029 0.016

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...
icon
Related questions
Question
100%
**Hypothetical Gas-Phase Reaction Analysis**

A flask is charged with 0.140 mol of A and allowed to react to form B according to the following hypothetical gas-phase reaction:

\[ \text{A(g)} \rightarrow \text{B(g)} \]

**Data Collected:**

| Times (s) | 0    | 40   | 80   | 120  | 160  |
|-----------|------|------|------|------|------|
| Moles of A | 0.140 | 0.068 | 0.043 | 0.029 | 0.016 |

**Tasks:**

(a) **Calculate the Number of Moles of B at Each Time:**

- **0 s:** 0 mol ✅
- **40 s:** 0.072 mol ✅
- **80 s:** 0.025 mol ❌
- **120 s:** 0.014 mol ❌
- **160 s:** 0.013 mol ❌

(b) **Calculate the Average Rate of Disappearance of A for Each 40 s Interval (units: mol/s):**

- **0 - 40 s:** 0.0018 mol/s ✅
- **40 - 80 s:** 0.000625 mol/s ✅
- **80 - 120 s:** 0.00035 mol/s ✅
- **120 - 160 s:** 0.000325 mol/s ✅

**Explanation of Data:**

The table provides time intervals and corresponding moles of reactant A. The task requires calculating the product B, implying an understanding of the chemical conversion of A to B over time. The reactions are tracked at specified 40-second intervals, with computations required for both B formation and A depletion rates across these intervals. Checking calculations against correct values ensures accuracy in reaction analysis.
Transcribed Image Text:**Hypothetical Gas-Phase Reaction Analysis** A flask is charged with 0.140 mol of A and allowed to react to form B according to the following hypothetical gas-phase reaction: \[ \text{A(g)} \rightarrow \text{B(g)} \] **Data Collected:** | Times (s) | 0 | 40 | 80 | 120 | 160 | |-----------|------|------|------|------|------| | Moles of A | 0.140 | 0.068 | 0.043 | 0.029 | 0.016 | **Tasks:** (a) **Calculate the Number of Moles of B at Each Time:** - **0 s:** 0 mol ✅ - **40 s:** 0.072 mol ✅ - **80 s:** 0.025 mol ❌ - **120 s:** 0.014 mol ❌ - **160 s:** 0.013 mol ❌ (b) **Calculate the Average Rate of Disappearance of A for Each 40 s Interval (units: mol/s):** - **0 - 40 s:** 0.0018 mol/s ✅ - **40 - 80 s:** 0.000625 mol/s ✅ - **80 - 120 s:** 0.00035 mol/s ✅ - **120 - 160 s:** 0.000325 mol/s ✅ **Explanation of Data:** The table provides time intervals and corresponding moles of reactant A. The task requires calculating the product B, implying an understanding of the chemical conversion of A to B over time. The reactions are tracked at specified 40-second intervals, with computations required for both B formation and A depletion rates across these intervals. Checking calculations against correct values ensures accuracy in reaction analysis.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 7 steps with 7 images

Blurred answer
Knowledge Booster
Theories of Reaction Rates
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
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY