Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN: 9781305079373
Author: William L. Masterton, Cecile N. Hurley
Publisher: Cengage Learning
Question
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Chapter 4, Problem 46QAP
Interpretation Introduction

(a)

Interpretation:

The following half-reaction should be classified as oxidation or reduction.

TiO2(s)Ti3+(aq)

Concept introduction:

The chemical reaction in which both oxidation and reduction process takes place is known as redox reaction. In this reaction, transfer of electrons takes place among the elements.

Oxidation is the process in which either loss of electrons, oxidation number increases, or loss of hydrogen atoms takes place. An element is oxidized, when oxidation number increases.

Reduction is the process in which either gain of electrons, oxidation number decreases, or gain of hydrogen atoms takes place. An element is reduced, when oxidation number decreases.

Interpretation Introduction

(b)

Interpretation:

The following half-reaction should be classified as oxidation or reduction.

Zn2+(aq)Zn (s)

Concept introduction:

The chemical reaction in which both oxidation and reduction process takes place is known as redox reaction. In this reaction, transfer of electrons takes place among the elements.

Oxidation is the process in which either loss of electrons, oxidation number increases, or loss of hydrogen atoms takes place. An element is oxidized, when oxidation number increases.

Reduction is the process in which either gain of electrons, oxidation number decreases, or gain of hydrogen atoms takes place. An element is reduced, when oxidation number decreases.

Interpretation Introduction

(c)

Interpretation:

The following half-reaction should be classified as oxidation or reduction.

NH4+(aq)N2(g)

Concept introduction:

The chemical reaction in which both oxidation and reduction process takes place is known as redox reaction. In this reaction, transfer of electrons takes place among the elements.

Oxidation is the process in which either loss of electrons, oxidation number increases, or loss of hydrogen atoms takes place. An element is oxidized, when oxidation number increases.

Reduction is the process in which either gain of electrons, oxidation number decreases, or gain of hydrogen atoms takes place. An element is reduced, when oxidation number decreases.

Interpretation Introduction

(d)

Interpretation:

The following half-reaction should be classified as oxidation or reduction.

CH3OH(aq)CH2O(aq)

Concept introduction:

The chemical reaction in which both oxidation and reduction process takes place is known as redox reaction. In this reaction, transfer of electrons takes place among the elements.

Oxidation is the process in which either loss of electrons, oxidation number increases, or loss of hydrogen atoms takes place. An element is oxidized, when oxidation number increases.

Reduction is the process in which either gain of electrons, oxidation number decreases, or gain of hydrogen atoms takes place. An element is reduced, when oxidation number decreases.

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Chapter 4 Solutions

Chemistry: Principles and Reactions

Ch. 4 - What volume of 0.2500 M cobalt(III) sulfate is...Ch. 4 - Prob. 12QAPCh. 4 - A 50.00-mL sample of 0.0250 M silver nitrate is...Ch. 4 - Aluminum ions react with carbonate ions to form an...Ch. 4 - When Na3PO4 and Ca(NO3)2 are combined, the...Ch. 4 - When solutions of aluminum sulfate and sodium...Ch. 4 - Prob. 17QAPCh. 4 - Prob. 18QAPCh. 4 - Prob. 19QAPCh. 4 - Follow the directions of Question 19 for the...Ch. 4 - For an acid-base reaction, what is the reacting...Ch. 4 - Follow the directions of Question 21 for the...Ch. 4 - Prob. 23QAPCh. 4 - Prob. 24QAPCh. 4 - Consider the following generic equation: H+(aq)+...Ch. 4 - Consider the following generic equation...Ch. 4 - Prob. 27QAPCh. 4 - Prob. 28QAPCh. 4 - Prob. 29QAPCh. 4 - Consider several 25.00-mL solutions of perchloric...Ch. 4 - Prob. 31QAPCh. 4 - A student tries to determine experimentally the...Ch. 4 - Prob. 33QAPCh. 4 - For a product to be called vinegar, it must...Ch. 4 - The percentage of sodium hydrogen carbonate,...Ch. 4 - Prob. 36QAPCh. 4 - An artificial fruit beverage contains 12.0 g of...Ch. 4 - Lactic acid, C3H6O3 is the acid present in sour...Ch. 4 - Prob. 39QAPCh. 4 - Prob. 40QAPCh. 4 - Assign oxidation numbers to each element in (a)...Ch. 4 - Assign oxidation numbers to each element in (a)...Ch. 4 - Classify each of the following half-reactions as...Ch. 4 - Classify each of the following half-reactions as...Ch. 4 - Classify each of the following half-reactions as...Ch. 4 - Prob. 46QAPCh. 4 - For each unbalanced equation given below • write...Ch. 4 - Prob. 48QAPCh. 4 - A solution of potassium permanganate reacts with...Ch. 4 - Prob. 50QAPCh. 4 - Hydrogen gas is bubbled into a solution of barium...Ch. 4 - Consider the reaction tween silver and nitric acid...Ch. 4 - The molarity of iodine in solution can be...Ch. 4 - A wire weighing 0.250 g and containing 92.50% Fe...Ch. 4 - Glycerol (C3H8O3) is commonly used as an additive...Ch. 4 - Laws passed in some states define a drunk driver...Ch. 4 - A sample of limestone weighing 1.005 g is...Ch. 4 - The iron content of hemoglobin is determined by...Ch. 4 - In order to determine the purity of ammonium...Ch. 4 - Gold metal will dissolve only in aqua regia, a...Ch. 4 - Prob. 61QAPCh. 4 - Ten mL of concentrated H3PO4 (91.7% by mass,...Ch. 4 - Consider the following balanced redox reaction in...Ch. 4 - Prob. 64QAPCh. 4 - Using circles to represent cations and squares to...Ch. 4 - Assuming that circles represent cations and...Ch. 4 - Consider four beakers. Beaker A has an aqueous...Ch. 4 - The following figures represent species before and...Ch. 4 - A student is asked to identify the metal nitrate...Ch. 4 - Three students titrate different samples of the...Ch. 4 - Calcium in blood or urine can be determined by...Ch. 4 - Copper metal can reduce silver ions to metallic...Ch. 4 - Copper metal can reduce silver ions to metallic...Ch. 4 - A solution contains both iron(II) and iron(III)...Ch. 4 - A student is given 0.930 g of an unknown acid,...Ch. 4 - Solid iron(III) hydroxide is added to 625 mL of...Ch. 4 - A 300.0-g sample of a solid is made up of a...Ch. 4 - When 85.0 mL of 0.250 M Ba(OH)2 solution is added...
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