2. Pentane combusts with oxygen to form carbon dioxide and water by the following reaction: C5H12(1) +8 O2(g) → 5 CO2(g) + 6 H₂O(g) a. If 0.111 moles of pentane (CsH12) is mixed with 0.313 moles of oxygen (O₂), which is the limiting reactant?

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
**Limiting Reactant, Theoretical Yield and Percent Yield**

2. **Pentane combusts with oxygen to form carbon dioxide and water by the following reaction:**

   \[ \text{C}_5\text{H}_{12}(l) + 8 \text{O}_2(g) \rightarrow 5 \text{CO}_2(g) + 6 \text{H}_2\text{O}(g) \]

   a. **If 0.111 moles of pentane (\(\text{C}_5\text{H}_{12}\)) is mixed with 0.313 moles of oxygen (\(\text{O}_2\)), which is the limiting reactant?**
   
   Page: 6/7

---

**Explanation:**

This section covers concepts of stoichiometry in chemical reactions, focusing on determining the limiting reactant. The reaction provided shows the combustion of pentane in oxygen, forming carbon dioxide and water.

To determine the limiting reactant, compare the mole ratio of the reactants based on the balanced chemical equation:

- **1 mole of \(\text{C}_5\text{H}_{12}\)** requires **8 moles of \(\text{O}_2\)**.
- The given amounts are **0.111 moles of \(\text{C}_5\text{H}_{12}\)** and **0.313 moles of \(\text{O}_2\)**.

Calculate the amount of \(\text{O}_2\) required for 0.111 moles of \(\text{C}_5\text{H}_{12}\):

\[ 0.111 \text{ moles C}_5\text{H}_{12} \times 8 = 0.888 \text{ moles O}_2 \]

Since only 0.313 moles of \(\text{O}_2\) are available, \(\text{O}_2\) is the limiting reactant.
Transcribed Image Text:**Limiting Reactant, Theoretical Yield and Percent Yield** 2. **Pentane combusts with oxygen to form carbon dioxide and water by the following reaction:** \[ \text{C}_5\text{H}_{12}(l) + 8 \text{O}_2(g) \rightarrow 5 \text{CO}_2(g) + 6 \text{H}_2\text{O}(g) \] a. **If 0.111 moles of pentane (\(\text{C}_5\text{H}_{12}\)) is mixed with 0.313 moles of oxygen (\(\text{O}_2\)), which is the limiting reactant?** Page: 6/7 --- **Explanation:** This section covers concepts of stoichiometry in chemical reactions, focusing on determining the limiting reactant. The reaction provided shows the combustion of pentane in oxygen, forming carbon dioxide and water. To determine the limiting reactant, compare the mole ratio of the reactants based on the balanced chemical equation: - **1 mole of \(\text{C}_5\text{H}_{12}\)** requires **8 moles of \(\text{O}_2\)**. - The given amounts are **0.111 moles of \(\text{C}_5\text{H}_{12}\)** and **0.313 moles of \(\text{O}_2\)**. Calculate the amount of \(\text{O}_2\) required for 0.111 moles of \(\text{C}_5\text{H}_{12}\): \[ 0.111 \text{ moles C}_5\text{H}_{12} \times 8 = 0.888 \text{ moles O}_2 \] Since only 0.313 moles of \(\text{O}_2\) are available, \(\text{O}_2\) is the limiting reactant.
**Chemistry Problem Set**

1. **Problem on Theoretical Yield:**

   **b.** What is the theoretical yield (in grams) of carbon dioxide and water for this reaction?

2. **Ammonia Synthesis Reaction:**

   Hydrogen reacts with nitrogen to form ammonia by the following equation:

   \[
   3 \text{H}_2(g) + \text{N}_2(g) \rightarrow 2 \text{NH}_3(g)
   \]

   **a.** What is the limiting reactant if 1.60 g of hydrogen are mixed with 6.90 g of nitrogen?

   **b.** What is the theoretical yield of ammonia (in grams)?

   **c.** Calculate the percent yield of ammonia when 7.45 grams of ammonia was experimentally obtained from the reaction.
Transcribed Image Text:**Chemistry Problem Set** 1. **Problem on Theoretical Yield:** **b.** What is the theoretical yield (in grams) of carbon dioxide and water for this reaction? 2. **Ammonia Synthesis Reaction:** Hydrogen reacts with nitrogen to form ammonia by the following equation: \[ 3 \text{H}_2(g) + \text{N}_2(g) \rightarrow 2 \text{NH}_3(g) \] **a.** What is the limiting reactant if 1.60 g of hydrogen are mixed with 6.90 g of nitrogen? **b.** What is the theoretical yield of ammonia (in grams)? **c.** Calculate the percent yield of ammonia when 7.45 grams of ammonia was experimentally obtained from the reaction.
Expert Solution
steps

Step by step

Solved in 5 steps with 27 images

Blurred answer
Knowledge Booster
Stoichiometry
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