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...
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Can you please hand write the answer for question 4.70 and show all of the work
Transcribed Image Text:**Neutralization and Redox Reactions: Educational Resource**
### Neutralization Reactions
**Problem 4.64:**
*How many milliliters of 1.00 M KOH must be added to neutralize the following solutions?*
**(a) A mixture of 0.240 M LiOH (25.0 mL) and 0.200 M HBr (75.0 mL)**
- To solve the problem, apply the neutralization equation and consider the molarity and volume of each reactant.
**(b) A mixture of 0.300 M HCl (45.0 mL) and 0.250 M NaOH (10.0 mL)**
- Apply stoichiometry and the concept of equivalence points in neutralization reactions to determine the required volume of KOH.
**Problem 4.65:**
*How many milliliters of 2.00 M HCl must be added to neutralize the following solutions?*
**(a) A mixture of 0.160 M HNO₃ (100.0 mL) and 0.100 M KOH (400.0 mL)**
- Use the molarity and the volumes of each reactant to find the volume of HCl needed for neutralization.
**(b) A mixture of 0.120 M NaOH (350.0 mL) and 0.190 M HBr (150.0 mL)**
- Calculate using the neutralization principle to find the exact volume of HCl necessary.
### Redox Reactions and Oxidation Numbers (Sections 4.6–4.8)
**Problem 4.66:**
*Where in the periodic table are the best reducing agents found? The best oxidizing agents?*
- Explore trends in the periodic table to locate the strongest reducing and oxidizing agents based on their positions.
**Problem 4.67:**
*Where in the periodic table are the most easily reduced elements found? The most easily oxidized?*
- Analyze the periodic trends and explain the ease of oxidation and reduction among different groups and periods.
**Problem 4.68:**
*In each of the following instances, tell whether the substance gains electrons or loses electrons in a redox reaction:*
**(a) An oxidizing agent**
**(b) A reducing agent**
**(c) A substance undergoing oxidation**
**
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