Quantitative Chemical Analysis 9th edition

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Daniel C. Harris
Publisher: W. H. Freeman

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  • Chapter T: WebAssign Answer Templates and Tutorials
    • T: WebAssign Answer Templates and Tutorials

  • Chapter 0: The Analytical Process
    • 0.1: The Analytical Chemist's Job
    • 0.2: General Steps in a Chemical Analysis (6)
    • 0: Extra Problems
    • 0: Test Bank (19)

  • Chapter 1: Chemical Measurements
    • 1.1: SI Units (12)
    • 1.2: Chemical Concentration (17)
    • 1.3: Preparing Solutions (6)
    • 1.4: Stoichiometry Calculations for Gravimetric Analysis (3)
    • 1: Extra Problems
    • 1: Test Bank (15)

  • Chapter 2: Tools of the Trade
    • 2.1: Safe, Ethical Handling of Chemicals and Waste
    • 2.2: The Lab Notebook (5)
    • 2.3: Analytical Balance (10)
    • 2.4: Burets
    • 2.5: Volumetric Flasks
    • 2.6: Pipets and Syringes
    • 2.7: Filtration
    • 2.8: Drying
    • 2.9: Calibration of Volumetric Glassware (16)
    • 2.10: Introduction to Microsoft Excel®
    • 2.11: Graphing with Microsoft Excel
    • 2: Extra Problems
    • 2: Test Bank (19)

  • Chapter 3: Experimental Error
    • 3.1: Significant Figures
    • 3.2: Significant Figures in Arithmetic (8)
    • 3.3: Types of Error (6)
    • 3.4: Propagation of Uncertainty from Random Error
    • 3.5: Propagation of Uncertainty from Systematic Error (9)
    • 3: Extra Problems (3)
    • 3: Test Bank (17)

  • Chapter 4: Statistics
    • 4.1: Gaussian Distribution (10)
    • 4.2: Comparison of Standard Deviations with the F Test
    • 4.3: Confidence Intervals
    • 4.4: Comparison of Means with Student's t
    • 4.5: t Tests with a Spreadsheet
    • 4.6: Grubbs Test for an Outlier (17)
    • 4.7: The Method of Least Squares (5)
    • 4.8: Calibration Curves (10)
    • 4.9: A Spreadsheet for Least Squares
    • 4: Extra Problems
    • 4: Test Bank (16)

  • Chapter 5: Quality Assurance and Calibration Methods
    • 5.1: Basics of Quality Assurance
    • 5.2: Method Validation (21)
    • 5.3: Standard Addition (10)
    • 5.4: Internal Standards (6)
    • 5: Extra Problems
    • 5: Test Bank (15)

  • Chapter 6: Chemical Equilibrium
    • 6.1: The Equilibrium Constant
    • 6.2: Equilibrium and Thermodynamics (13)
    • 6.3: Solubility Product (8)
    • 6.4: Complex Formation (6)
    • 6.5: Protic Acids and Bases (8)
    • 6.6: pH (5)
    • 6.7: Strengths of Acids and Bases (14)
    • 6: Extra Problems
    • 6: Test Bank (15)

  • Chapter 7: Let the Titrations Begin
    • 7.1: Titrations
    • 7.2: Titration Calculations (16)
    • 7.3: Precipitation Titration Curves (5)
    • 7.4: Titration of a Mixture (5)
    • 7.5: Calculating Titration Curves with a Spreadsheet (4)
    • 7.6: End-Point Detection (5)
    • 7: Extra Problems
    • 7: Test Bank (15)

  • Chapter 8: Activity and the Systematic Treatment of Equilibrium
    • 8.1: The Effect of Ionic Strength on Solubility of Salts
    • 8.2: Activity Coefficients (14)
    • 8.3: pH Revisited
    • 8.4: Systematic Treatment of Equilibrium (19)
    • 8.5: Applying the Systematic Treatment of Equilibrium
    • 8: Extra Problems
    • 8: Test Bank (15)

  • Chapter 9: Monoprotic Acid-Base Equilibria
    • 9.1: Strong Acids and Bases (4)
    • 9.2: Weak Acids and Bases
    • 9.3: Weak-Acid Equilibria (13)
    • 9.4: Weak-Base Equilibria (8)
    • 9.5: Buffers (26)
    • 9: Extra Problems
    • 9: Test Bank (15)

  • Chapter 10: Polyprotic Acid-Base Equilibria
    • 10.1: Diprotic Acids and Bases (11)
    • 10.2: Diprotic Buffers (4)
    • 10.3: Polyprotic Acids and Bases (7)
    • 10.4: Which Is the Principal Species? (4)
    • 10.5: Fractional Composition Equations (12)
    • 10.6: Isoelectric and Isoionic pH (5)
    • 10: Extra Problems
    • 10: Test Bank (15)

  • Chapter 11: Acid-Base Titrations
    • 11.1: Titration of Strong Base with Strong Acid (4)
    • 11.2: Titration of Weak Acid with Strong Base (11)
    • 11.3: Titration of Weak Base with Strong Acid (8)
    • 11.4: Titrations in Diprotic Systems (18)
    • 11.5: Finding the End Point with a pH Electrode (3)
    • 11.6: Finding the End Point with Indicators (13)
    • 11.7: Practical Notes
    • 11.8: Kjeldahl Nitrogen Analysis
    • 11.9: The Leveling Effect (17)
    • 11.10: Calculating Titration Curves with Spreadsheets (9)
    • 11.11: Using Beer's Law with Indicators* (2)
    • 11: Extra Problems
    • 11: Test Bank (15)

  • Chapter 12: EDTA Titrations
    • 12.1: Metal-Chelate Complexes
    • 12.2: EDTA (5)
    • 12.3: EDTA Titration Curves (10)
    • 12.4: Do It with a Spreadsheet
    • 12.5: Auxiliary Complexing Agents (9)
    • 12.6: Metal Ion Indicators (4)
    • 12.7: EDTA Titration Techniques (11)
    • 12: Extra Problems
    • 12: Test Bank (15)

  • Chapter 13: Advanced Topics in Equilibrium
    • 13.1: General Approach to Acid-Base Systems
    • 13.2: Activity Coefficients
    • 13.3: Dependence of Solubility on pH
    • 13.4: Analyzing Acid-Base Titrations with Difference Plots (17)
    • 13: Extra Problems
    • 13: Test Bank (15)

  • Chapter 14: Fundamentals of Electrochemistry
    • 14.1: Basic Concepts (6)
    • 14.2: Galvanic Cells (5)
    • 14.3: Standard Potentials (2)
    • 14.4: Nernst Equation (14)
    • 14.5: E° and the Equilibrium Constant (12)
    • 14.6: Cells as Chemical Probes (7)
    • 14.7: Biochemists Use E°' (7)
    • 14: Extra Problems
    • 14: Test Bank (15)

  • Chapter 15: Electrodes and Potentiometry
    • 15.1: Reference Electrodes (5)
    • 15.2: Indicator Electrodes (6)
    • 15.3: What Is a Junction Potential? (9)
    • 15.4: How Ion-Selective Electrodes Work
    • 15.5: pH Measurement with a Glass Electrode (11)
    • 15.6: Ion-Selective Electrodes
    • 15.7: Using Ion-Selective Electrodes (21)
    • 15.8: Solid-State Chemical Sensors (2)
    • 15: Extra Problems
    • 15: Test Bank (15)

  • Chapter 16: Redox Titrations
    • 16.1: The Shape of a Redox Titration Curve (8)
    • 16.2: Finding the End Point (2)
    • 16.3: Adjustment of Analyte Oxidation State (4)
    • 16.4: Oxidation with Potassium Permanganate
    • 16.5: Oxidation with Ce4+
    • 16.6: Oxidation with Potassium Dichromate (10)
    • 16.7: Methods Involving Iodine (16)
    • 16: Extra Problems
    • 16: Test Bank (15)

  • Chapter 17: Electroanalytical Techniques
    • 17.1: Fundamentals of Electrolysis (9)
    • 17.2: Electrogravimetric Analysis (4)
    • 17.3: Coulometry (11)
    • 17.4: Amperometry (4)
    • 17.5: Voltammetry (14)
    • 17.6: Karl Fischer Titration of H2O (2)
    • 17: Extra Problems
    • 17: Test Bank (15)

  • Chapter 18: Fundamentals of Spectrophotometry
    • 18.1: Properties of Light (5)
    • 18.2: Absorption of Light
    • 18.3: Measuring Absorbance (11)
    • 18.4: Beer's Law in Chemical Analysis (9)
    • 18.5: Spectrophotometric Titrations (8)
    • 18.6: What Happens When a Molecule Absorbs Light?
    • 18.7: Luminescence (10)
    • 18: Extra Problems
    • 18: Test Bank (18)

  • Chapter 19: Applications of Spectrophotometry
    • 19.1: Analysis of a Mixture (10)
    • 19.2: Measuring an Equilibrium Constant (6)
    • 19.3: The Method of Continuous Variation (6)
    • 19.4: Flow Injection Analysis and Sequential Injection
    • 19.5: Immunoassays
    • 19.6: Sensors Based on Luminescence Quenching (7)
    • 19: Extra Problems
    • 19: Test Bank (15)

  • Chapter 20: Spectrophotometers
    • 20.1: Lamps and Lasers: Sources of Light
    • 20.2: Monochromators
    • 20.3: Detectors (16)
    • 20.4: Optical Sensors (11)
    • 20.5: Fourier Transform Infrared Spectroscopy (2)
    • 20.6: Dealing with Noise (9)
    • 20: Extra Problems
    • 20: Test Bank (16)

  • Chapter 21: Atomic Spectroscopy
    • 21.1: An Overview
    • 21.2: Atomization: Flames, Furnaces, and Plasmas
    • 21.3: How Temperature Affects Atomic Spectroscopy
    • 21.4: Instrumentation
    • 21.5: Interference
    • 21.6: Sampling by Laser Ablation (19)
    • 21.7: Inductively Coupled Plasma–Mass Spectrometry (8)
    • 21.8: X-ray Fluorescence (6)
    • 21: Extra Problems
    • 21: Test Bank (19)

  • Chapter 22: Mass Spectrometry
    • 22.1: What Is Mass Spectrometry? (7)
    • 22.2: Oh, Mass Spectrum, Speak to Me! (17)
    • 22.3: Types of Mass Spectrometers (6)
    • 22.4: Chromatography–Mass Spectrometry Interfaces
    • 22.5: Chromatography–Mass Spectrometry Techniques
    • 22.6: Open-Air Sampling for Mass Spectrometry (12)
    • 22.7: Ion Mobility Spectrometry
    • 22: Extra Problems
    • 22: Test Bank (15)

  • Chapter 23: Introduction to Analytical Separations
    • 23.1: Solvent Extraction (16)
    • 23.2: What Is Chromatography?
    • 23.3: A Plumber's View of Chromatography (15)
    • 23.4: Efficiency of Separation
    • 23.5: Why Bands Spread (17)
    • 23: Extra Problems
    • 23: Test Bank (15)

  • Chapter 24: Gas Chromatography
    • 24.1: The Separation Process in Gas Chromatography
    • 24.2: Sample Injection
    • 24.3: Detectors
    • 24.4: Sample Preparation
    • 24.5: Method Development in Gas Chromatography (39)
    • 24: Extra Problems
    • 24: Test Bank (18)

  • Chapter 25: High-Performance Liquid Chromatography
    • 25.1: The Chromatographic Process
    • 25.2: Injection and Detection in HPLC (26)
    • 25.3: Method Development for Reversed-Phase Separations (21)
    • 25.4: Gradient Separations
    • 25.5: Do it with a Computer
    • 25: Extra Problems
    • 25: Test Bank (18)

  • Chapter 26: Chromatographic Methods and Capillary Electrophoresis
    • 26.1: Ion-Exchange Chromatography
    • 26.2: Ion Chromatography (17)
    • 26.3: Molecular Exclusion Chromatography
    • 26.4: Affinity Chromatography
    • 26.5: Hydrophobic Interaction Chromatography (8)
    • 26.6: Principles of Capillary Electrophoresis
    • 26.7: Conducting Capillary Electrophoresis (21)
    • 26.8: Lab-on-a-Chip: DNA Profiling
    • 26: Extra Problems
    • 26: Test Bank (17)

  • Chapter 27: Gravimetric and Combustion Analysis
    • 27.1: An Example of Gravimetric Analysis
    • 27.2: Precipitation
    • 27.3: Examples of Gravimetric Calculations (27)
    • 27.4: Combustion Analysis (11)
    • 27: Extra Problems
    • 27: Test Bank (15)

  • Chapter 28: Sample Preparation
    • 28.1: Statistics of Sampling (11)
    • 28.2: Dissolving Samples for Analysis
    • 28.3: Sample Preparation Techniques (14)
    • 28: Extra Problems
    • 28: Test Bank (15)


Dan Harris's 9th edition of Quantitative Chemical Analysis provides a sound physical understanding of the principles of analytical chemistry and their applications in the disciplines. The WebAssign component for this text engages students with an interactive eBook, formatting of chemical symbols with the chemPad tool, and structure drawing with the Marvin JS drawing tool.

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Most questions from this textbook are available in WebAssign. The online questions are identical to the textbook questions except for minor wording changes necessary for Web use. Whenever possible, variables, numbers, or words have been randomized so that each student receives a unique version of the question. This list is updated nightly.

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TB - Test Bank
XP - Extra Problem


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Group Quantity Questions
Chapter 0: The Analytical Process
0.P 6 001 002 003 004 005 006
0.TB 19 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019
Chapter 1: Chemical Measurements
1.P 38 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038
1.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 2: Tools of the Trade
2.P 31 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031
2.TB 19 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019
Chapter 3: Experimental Error
3.P 23 001 002 003 004 005 006 006.alt 007 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023
3.TB 17 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017
3.XP 3 001 002 003
Chapter 4: Statistics
4.P 42 001 002 003 004 005 005.alt 006 006.alt 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 027.alt 028 029 030 031 032 033 034 035 035.alt 036 037 037.alt
4.TB 16 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016
Chapter 5: Quality Assurance and Calibration Methods
5.P 37 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 026.alt 027 027.alt 028 028.alt 029 030 031 032 032.alt 033
5.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 6: Chemical Equilibrium
6.P 54 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054
6.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 7: Let the Titrations Begin
7.P 35 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035
7.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 8: Activity and the Systematic Treatment of Equilibrium
8.P 33 001 002 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034
8.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 9: Monoprotic Acid-Base Equilibria
9.P 51 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 044.alt 045 045.alt 046 047 048 048.alt
9.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 10: Polyprotic Acid-Base Equilibria
10.P 43 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 035.alt 036 036.alt 037 038 039 040 041
10.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 11: Acid-Base Titrations
11.P 85 001 002 002.alt 003 004 004.alt 005 006 006.alt 007 007.alt 008 009 010 011 012 013 014 014.alt 015 016 017 018 019 019.alt 020 021 022 023 023.alt 024 024.alt 025 025.alt 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 056.alt 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075
11.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 12: EDTA Titrations
12.P 39 001 002 003 004 005 006 007 008 008.alt 009 009.alt 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 031 032 033 034 035 036 037 038 039
12.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 13: Advanced Topics in Equilibrium
13.P 17 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017
13.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 14: Fundamentals of Electrochemistry
14.P 53 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 038.alt 039 040 041 042 043 044 045 046 047 048 049 050 051 052
14.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 15: Electrodes and Potentiometry
15.P 54 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 030.alt 031 032 033 034 035 036 037 038 039 040 041 042 043 044 044.alt 045 046 047 048 049 050 051 052
15.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 16: Redox Titrations
16.P 40 001 002 002.alt 003 003.alt 004 005 005.alt 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037
16.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 17: Electroanalytical Techniques
17.P 44 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 038.alt 039 040 041 042 043
17.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 18: Fundamentals of Spectrophotometry
18.P 43 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 027.alt 028 028.alt 029 029.alt 030 031 032 033 034 035 035.alt 036 037 037.alt 038
18.TB 18 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018
Chapter 19: Applications of Spectrophotometry
19.P 29 001 002 003 004 005 006 007 008 009 010 011 011.alt 012 012.alt 013 014 015 015.alt 016 017 018 018.alt 019 020 021 022 023 024 025
19.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 20: Spectrophotometers
20.P 38 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 037.alt
20.TB 16 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016
Chapter 21: Atomic Spectroscopy
21.P 33 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 021.alt 022 023 024 024.alt 025 026 027 028 029 030 031
21.TB 19 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019
Chapter 22: Mass Spectrometry
22.P 42 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042
22.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 23: Introduction to Analytical Separations
23.P 48 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 041.alt 042 043 044 045 046 047
23.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 24: Gas Chromatography
24.P 39 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039
24.TB 18 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018
Chapter 25: High-Performance Liquid Chromatography
25.P 47 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047
25.TB 18 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018
Chapter 26: Chromatographic Methods and Capillary Electrophoresis
26.P 46 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 041.alt 048 049 050 050.alt
26.TB 17 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017
Chapter 27: Gravimetric and Combustion Analysis
27.P 38 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038
27.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Chapter 28: Sample Preparation
28.P 25 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025
28.TB 15 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
Total 1618