Worked Chemistry Problems

This is a collection of worked general chemistry and introductory chemistry problems, listed in alphabetical order. I have included printable pdf chemistry worksheets so you can practice problems and then check your answers. You may also browse chemistry problems according to type of problem.

Alphabetical Index of Chemistry Problem Types

• Accuracy Review
• Acid-Base Titration
• Activation Energy Calculation
• Angle Between Two Vectors
• Aqueous Solution Dilutions
• Atomic Mass & Isotopic Abundance
• Atomic Mass from Atomic Abundance
• Atomic Weight Calculation
• Average of a Set of Numbers
• Avogadro's Law
• Avogadro's Gas Law
• Avogadro's Number - Finding Mass of a Single Atom
• Avogadro's Number - Mass of a Known Number of Molecules
• Avogadro's Number - Finding Number of Molecules in a Known Mass
• Balancing Chemical Equations - Tutorial
• Balancing Chemical Equations - Example
• Balancing Redox Reactions - Example and Tutorial
• Balancing Redox Reactions in a Basic Solution - Example
• Balancing Redox Equations - Tutorial
• Bohr Atom Energy Levels
• Bohr Atom Energy Change
• Boiling Point Elevation
• Bond Energies & Enthalpies
• Bond Polarity
• Boyle's Law
• Boyle's Gas Law
• Boyle's Law - Example #2
• Calorimetry & Heat Flow
• Carbon-14 Dating
• Celsius to Kelvin Temperature Conversion
• Charles' Law
• Charles' Gas Law
• Clausius-Clapeyron Equation
• Concentration and Molarity - Determine a Concentration From A Known Mass of Solute
• Concentration and Molarity - Preparing a Stock Solution
• Concentration and Molarity - Finding Concentration of Ions in an Aqueous Solution
• Dalton's Law of Partial Pressures
• de Broglie Wavelength Calculation
• Density Calculation
• Density of an Ideal Gas
• Diamagnetism
• Dilutions from Stock Solutions
• Electron Configuration
• Electron Volt to Joule Conversion
• Electronegativity
• Empirical Formula
• Calculate Empirical and Molecular Formula of a Compound
• Enthalpy Change - Enthalpy Change of a Reaction
• Enthalpy Change - Enthalpy Change of a Reaction of a Given Mass
• Enthalpy Change - Enthalpy Change of Water
• Entropy and Reaction Spontaneity
• Entropy Calculation
• Entropy Change
• Entropy of Reaction
• Equation of a Line
• Equilibrium Constant
• Equilibrium Constant 2
• Equilibrium Constant for Gaseous Reactions
• Equilibrium Concentration for Reactions with Large Equilibrium Constant
• Equilibrium Concentration for Reactions with Small Equilibrium Constant
• Experimental Error
• Free Energy and Pressure
• Free Energy and Reaction Spontaneity
• Formal Charge - Lewis Structure Resonance Structures
• Freezing Point Depression
• Frequency to Wavelength Conversion
• Graham's Law
• Gram to Mole Conversion
• Guy-Lussac's Gas Law
• Half Life
• Heats of Formation
• Henderson-Hasselbalch Equation
• Henry's Law
• Hess's Law
• Ideal Gas Example Problem
• Ideal Gas Law
• Ideal Gas - Constant Pressure
• Ideal Gas - Constant Temperature
• Ideal Gas - Constant Volume
• Ideal Gas Example Problem - Partial Pressure
• Ideal Gas Example Problem - Unknown Gas
• Ideal Gas vs Real Gas - van der Waals Equation
• Isotopes and Nuclear Symbols - Example 1
• Isotopes and Nuclear Symbols - Example 2
• Isotopes and Nuclear Symbols - Example 3
• Joule to Electron Volt Conversion
• Law of Multiple Proportions
• Length Conversion - Angstroms to Meters
• Length Conversion - Angstroms to Nanometers
• Length Conversion - Centimeters to Meters
• Length Conversion - Feet to Kilometers
• Length Conversion - Feet to Meters
• Length Conversion - Inches to Centimeters
• Length Conversion - Kilometers to Meters
• Length Conversion - Miles to Kilometers
• Length Conversion - Millimeters to Centimeters
• Length Conversion - Millimeters to Meters
• Length Conversion - Micrometers to Meters
• Length Conversion - Nanometers to Meters
• Length Conversion - Nanometers to Angstroms
• Length Conversion - Yards to Meters
• Draw a Lewis Structure
• Draw a Lewis Structure - Octet Rule Exception
• Limiting Reactant & Theoretical Yield
• Mass Conversions - Grams to Kilograms
• Mass Conversions - Grams to Kilograms - Example #2
• Mass Conversions - Kilograms to Grams
• Mass Conversions - Pounds to Kilograms
• Mass Conversions - Ounces to Grams
• Mass - Energy Relations in Nuclear Reactions
• Mass of Liquid from Density
• Mass Percent Composition
• Mass Percent Composition Example #2
• Mass Relations in Balanced Equations
• Mean of a Set of Numbers
• Molality
• Molar Mass
• Molarity
• Molarity to PPM Conversion
• Mole - Gram Conversions
• Mole Relations in Balanced Equations
• Molecular Formula from Simplest Formula
• Molecular Mass Calculations
• Nernst Equation
• Neutralizing a Base with an Acid
• Normality
• Osmotic Pressure
• Oxidation and Reduction
• Assigning Oxidation States
• Paramagnetism
• Percent Compostion by Mass
• pH Calculation
• pH Calculation - Example #2
• pH of a Strong Acid
• pH of a Strong Base
• pH of a Weak Acid
• Phosphate Buffer Preparation
• pOH Calculation
• Precision Review
• Predicting Formulas of Compounds with Polyatomic Ions
• Predicting Formulas of Ionic Compounds
• Prepare a Solution (Molarity)
• Pressure Conversion - kPa to mm Hg
• Pressure Conversion - mm Hg to kPa
• Pressure Conversion - Pa to atm
• Pressure Conversion - millibar to atm
• Pressure Conversion - atm to millibar
• Pressure Conversion - atm to Pa
• Pressure Conversion - bars to atm
• Pressure Conversion - atm to bars
• Pressure Conversion - millibars to mm Hg
• Pressure Conversion - mm Hg to millibars
• Pressure Conversion - psi to atm
• Pressure Conversion - atm to psi
• Pressure Conversion - psi to Pa
• Pressure Conversion - psi to millbars
• Pressure Conversion - atm to psi
• Protons & Electrons in Ions
• Protons & Electrons in Ions - 2nd Example
• Radioactive Decay - α Decay
• Radioactive Decay - Electron Capture
• Radioactive Decay - β⁺ Decay
• Radioactive Decay - β^- Decay
• Raoult's Law - Example #1
• Raoult's Law - Example #2
• Raoult's Law - Example #3
• Rate of Radioactive Decay
• Rates of Reaction
• Reactions in Aqueous Solution
• Reaction Quotient
• Redox Reaction
• Root Mean Square Velocity of Ideal Gas Molecules
• Scientific Notation
• Significant Figures
• Simplest Formula from Percent Composition
• Solubilty from Solubility Product
• Solubility Product from Solubility
• Temperature Conversions
• Temperature Conversions - Kelvin to Celsius & Fahrenheit
• Temperature Conversions - Celsius to Fahrenheit
• Temperature Conversions - Celsius to Kelvin
• Temperature Conversions - Kelvin to Celsius
• Temperature Conversions - Fahrenheit to Celsius
• Temperature Conversions - Fahrenheit to Kelvin
• Theoretical Yield
• Theoretical Yield #2
• Titration Concentration
• Uncertainty
• Unit Cancelling - English to Metric
• Unit Cancelling - Metric to Metric
• Unit Conversions
• Vector Scalar Product
• Volume Conversions - Cubic Centimeters to Liters
• Volume Conversions - Cubic Feet to Liters
• Volume Conversions - Cubic Inches to Cubic Centimeters
• Volume Conversions - Cubic Meters to Cubic Feet
• Volume Conversions - Cubic Meters to Liters
• Volume Conversions - Gallons to Liters
• Volume Conversions - Cubic Inches to Liters
• Volume Conversions - Fluid Ounces to Milliliters
• Volume Conversions - Liters to Milliliters
• Volume Conversions - Microliters to Milliliters
• Volume Conversions - Milliliters to Liters
• Volume Percent
• Wavelength to Frequency Conversion

Chemistry Worksheets (pdf to download or print)

• Metric to English Conversions Worksheet
• Metric to English Conversions Answers

• Metric to Metric Conversions Worksheet
• Metric to Metric Conversions Answers

• Temperature Conversions Worksheet
• Temperature Conversions Answers
• Temperature Conversions Worksheet #2
• Temperature Conversions Answers #2

• Moles to Grams Conversions Worksheet
• Moles to Grams Conversions Answers

• Formula or Molar Mass Worksheet
  
• Formula or Molar Mass Worksheet Answers

• Practicing Balancing Chemical Equations - Worksheet
  
• Balancing Chemical Equations - Answers
• Practicing Balancing Chemical Equations - Worksheet #2
  
• Balancing Chemical Equations - Answers #2
  
• Practicing Balancing Chemical Equations - Worksheet #3
  
• Balancing Chemical Equations - Answers #3

• Common Acid Names & Formulas - Worksheet
  
• Acid Names and Formulas - Answers

• Practice Calculations with Moles - Worksheet
  
• Mole Calculations - Answers

• Practice Mole Relations in Balanced Equations - Worksheet
  
• Mole Relations in Balanced Equations - Answers

• Gas Laws
  
• Gas Laws Answers
  
• Gas Laws Answers - Shown Work

• Limiting Reagent - Worksheet
  
• Limiting Reagent - Answers

• Calculating Molarity - Worksheet
  
• Calculating Molarity - Answers

• Acid & Base pH - Worksheet
• Acid & Base pH - Answers

• Electron Configurations - Worksheet
  
• Electron Configurations - Answers

• Balancing Redox Reactions - Worksheet
  
• Balancing Redox Reactions - Answers