On this webpage you will find my solutions to the third edition of "Introduction to Quantum Mechanics" by David J. Griffiths. Here is a link to the book's page on amazon.com. If you find my work useful, please consider making a donation. Thank you.

Chapter 1: The Wave Function
Problem 1.1 Problem 1.4 Problem 1.7 Problem 1.10 Problem 1.13 Problem 1.16
Problem 1.2 Problem 1.5 Problem 1.8 Problem 1.11 Problem 1.14 Problem 1.17
Problem 1.3 Problem 1.6 Problem 1.9 Problem 1.12 Problem 1.15 Problem 1.18
Chapter 2: Time-Independent Schrödinger Equation
Problem 2.1 Problem 2.6 Problem 2.11 Problem 2.16 Problem 2.21 Problem 2.26 Problem 2.31
Problem 2.2 Problem 2.7 Problem 2.12 Problem 2.17 Problem 2.22 Problem 2.27 Problem 2.32
Problem 2.3 Problem 2.8 Problem 2.13 Problem 2.18 Problem 2.23 Problem 2.28 Problem 2.33
Problem 2.4 Problem 2.9 Problem 2.14 Problem 2.19 Problem 2.24 Problem 2.29 Problem 2.34
Problem 2.5 Problem 2.10 Problem 2.15 Problem 2.20 Problem 2.25 Problem 2.30 Problem 2.35
Chapter 2: Time-Independent Schrödinger Equation (cont'd)
Problem 2.36 Problem 2.41 Problem 2.46 Problem 2.51 Problem 2.56 Problem 2.61 Bound State Simulation
Problem 2.37 Problem 2.42 Problem 2.47 Problem 2.52 Problem 2.57 Problem 2.62 Scattering State Simulation
Problem 2.38 Problem 2.43 Problem 2.48 Problem 2.53 Problem 2.58 Problem 2.63
Problem 2.39 Problem 2.44 Problem 2.49 Problem 2.54 Problem 2.59 Problem 2.64
Problem 2.40 Problem 2.45 Problem 2.50 Problem 2.55 Problem 2.60
Appendix: Linear Algebra
Problem A.1 Problem A.5 Problem A.9 Problem A.13 Problem A.17 Problem A.21 Problem A.25 Problem A.29
Problem A.2 Problem A.6 Problem A.10 Problem A.14 Problem A.18 Problem A.22 Problem A.26 Problem A.30
Problem A.3 Problem A.7 Problem A.11 Problem A.15 Problem A.19 Problem A.23 Problem A.27 Problem A.31
Problem A.4 Problem A.8 Problem A.12 Problem A.16 Problem A.20 Problem A.24 Problem A.28
Chapter 3: Formalism
Problem 3.1 Problem 3.6 Problem 3.11 Problem 3.16 Problem 3.21
Problem 3.2 Problem 3.7 Problem 3.12 Problem 3.17 Problem 3.22
Problem 3.3 Problem 3.8 Problem 3.13 Problem 3.18 Problem 3.23
Problem 3.4 Problem 3.9 Problem 3.14 Problem 3.19 Problem 3.24
Problem 3.5 Problem 3.10 Problem 3.15 Problem 3.20 Problem 3.25
Chapter 3: Formalism (cont'd)
Problem 3.26 Problem 3.31 Problem 3.36 Problem 3.41 Problem 3.46
Problem 3.27 Problem 3.32 Problem 3.37 Problem 3.42 Problem 3.47
Problem 3.28 Problem 3.33 Problem 3.38 Problem 3.43 Problem 3.48
Problem 3.29 Problem 3.34 Problem 3.39 Problem 3.44 Problem 3.49
Problem 3.30 Problem 3.35 Problem 3.40 Problem 3.45
Chapter 4: Quantum Mechanics in Three Dimensions
Problem 4.1 Problem 4.6 Problem 4.11 Problem 4.16 Problem 4.21 Problem 4.26 Problem 4.31 Problem 4.36
Problem 4.2 Problem 4.7 Problem 4.12 Problem 4.17 Problem 4.22 Problem 4.27 Problem 4.32 Problem 4.37
Problem 4.3 Problem 4.8 Problem 4.13 Problem 4.18 Problem 4.23 Problem 4.28 Problem 4.33 Problem 4.38
Problem 4.4 Problem 4.9 Problem 4.14 Problem 4.19 Problem 4.24 Problem 4.29 Problem 4.34 Problem 4.39
Problem 4.5 Problem 4.10 Problem 4.15 Problem 4.20 Problem 4.25 Problem 4.30 Problem 4.35 Problem 4.40
Chapter 4: Quantum Mechanics in Three Dimensions (cont'd)
Problem 4.41 Problem 4.46 Problem 4.51 Problem 4.56 Problem 4.61 Problem 4.66 Problem 4.71 Problem 4.76
Problem 4.42 Problem 4.47 Problem 4.52 Problem 4.57 Problem 4.62 Problem 4.67 Problem 4.72
Problem 4.43 Problem 4.48 Problem 4.53 Problem 4.58 Problem 4.63 Problem 4.68 Problem 4.73
Problem 4.44 Problem 4.49 Problem 4.54 Problem 4.59 Problem 4.64 Problem 4.69 Problem 4.74
Problem 4.45 Problem 4.50 Problem 4.55 Problem 4.60 Problem 4.65 Problem 4.70 Problem 4.75
Chapter 5: Identical Particles
Problem 5.1 Problem 5.6 Problem 5.11 Problem 5.16 Problem 5.21 Problem 5.26 Problem 5.31 Problem 5.36
Problem 5.2 Problem 5.7 Problem 5.12 Problem 5.17 Problem 5.22 Problem 5.27 Problem 5.32 Problem 5.37
Problem 5.3 Problem 5.8 Problem 5.13 Problem 5.18 Problem 5.23 Problem 5.28 Problem 5.33 Problem 5.38
Problem 5.4 Problem 5.9 Problem 5.14 Problem 5.19 Problem 5.24 Problem 5.29 Problem 5.34 Problem 5.39
Problem 5.5 Problem 5.10 Problem 5.15 Problem 5.20 Problem 5.25 Problem 5.30 Problem 5.35
Chapter 6: Symmetries & Conservation Laws
Problem 6.1 Problem 6.6 Problem 6.11 Problem 6.16 Problem 6.21 Problem 6.26 Problem 6.31 Problem 6.36
Problem 6.2 Problem 6.7 Problem 6.12 Problem 6.17 Problem 6.22 Problem 6.27 Problem 6.32 Problem 6.37
Problem 6.3 Problem 6.8 Problem 6.13 Problem 6.18 Problem 6.23 Problem 6.28 Problem 6.33
Problem 6.4 Problem 6.9 Problem 6.14 Problem 6.19 Problem 6.24 Problem 6.29 Problem 6.34
Problem 6.5 Problem 6.10 Problem 6.15 Problem 6.20 Problem 6.25 Problem 6.30 Problem 6.35
Chapter 7: Time-Independent Perturbation Theory
Problem 7.1 Problem 7.5 Problem 7.9 Problem 7.13 Problem 7.17 Problem 7.21 Problem 7.25 Problem 7.29
Problem 7.2 Problem 7.6 Problem 7.10 Problem 7.14 Problem 7.18 Problem 7.22 Problem 7.26 Problem 7.30
Problem 7.3 Problem 7.7 Problem 7.11 Problem 7.15 Problem 7.19 Problem 7.23 Problem 7.27 Problem 7.31
Problem 7.4 Problem 7.8 Problem 7.12 Problem 7.16 Problem 7.20 Problem 7.24 Problem 7.28 Problem 7.32
Chapter 7: Time-Independent Perturbation Theory (cont'd)
Problem 7.33 Problem 7.37 Problem 7.41 Problem 7.45 Problem 7.49 Problem 7.53 Problem 7.57
Problem 7.34 Problem 7.38 Problem 7.42 Problem 7.46 Problem 7.50 Problem 7.54
Problem 7.35 Problem 7.39 Problem 7.43 Problem 7.47 Problem 7.51 Problem 7.55
Problem 7.36 Problem 7.40 Problem 7.44 Problem 7.48 Problem 7.52 Problem 7.56
Chapter 8: The Variational Principle
Problem 8.1 Problem 8.5 Problem 8.9 Problem 8.13 Problem 8.17 Problem 8.21 Problem 8.25 Problem 8.29
Problem 8.2 Problem 8.6 Problem 8.10 Problem 8.14 Problem 8.18 Problem 8.22 Problem 8.26 Problem 8.30
Problem 8.3 Problem 8.7 Problem 8.11 Problem 8.15 Problem 8.19 Problem 8.23 Problem 8.27
Problem 8.4 Problem 8.8 Problem 8.12 Problem 8.16 Problem 8.20 Problem 8.24 Problem 8.28
Chapter 9: The WKB Approximation
Problem 9.1 Problem 9.4 Problem 9.7 Problem 9.10 Problem 9.13 Problem 9.16 Problem 9.19
Problem 9.2 Problem 9.5 Problem 9.8 Problem 9.11 Problem 9.14 Problem 9.17 Problem 9.20
Problem 9.3 Problem 9.6 Problem 9.9 Problem 9.12 Problem 9.15 Problem 9.18
Chapter 10: Scattering
Problem 10.1 Problem 10.4 Problem 10.7 Problem 10.10 Problem 10.13 Problem 10.16 Problem 10.19 Problem 10.22
Problem 10.2 Problem 10.5 Problem 10.8 Problem 10.11 Problem 10.14 Problem 10.17 Problem 10.20 Problem 10.23
Problem 10.3 Problem 10.6 Problem 10.9 Problem 10.12 Problem 10.15 Problem 10.18 Problem 10.21
Chapter 11: Quantum Dynamics
Problem 11.1 Problem 11.6 Problem 11.11 Problem 11.16 Problem 11.21 Problem 11.26 Problem 11.31 Problem 11.36
Problem 11.2 Problem 11.7 Problem 11.12 Problem 11.17 Problem 11.22 Problem 11.27 Problem 11.32 Problem 11.37
Problem 11.3 Problem 11.8 Problem 11.13 Problem 11.18 Problem 11.23 Problem 11.28 Problem 11.33 Problem 11.38
Problem 11.4 Problem 11.9 Problem 11.14 Problem 11.19 Problem 11.24 Problem 11.29 Problem 11.34 Problem 11.39
Problem 11.5 Problem 11.10 Problem 11.15 Problem 11.20 Problem 11.25 Problem 11.30 Problem 11.35
Chapter 12: Afterword
Problem 12.1 Problem 12.3 Problem 12.5 Problem 12.7
Problem 12.2 Problem 12.4 Problem 12.6 Problem 12.8