Chemistry Solutions Library

Chemistry Solutions Library

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28,780 solutions

Enthalpy of Formation

Q. Calculate ΔH° for each of the following reactions, which occur in the atmosphere.(a) O3(g) + NO(g) → NO2(g) + O2(g)

Solved • Apr 2, 2021

Energy Diagram

Q. The diagram below represents a spontaneous reaction (deltaG degree < 0). Drag the labels to the correct bins. 

Solved • Apr 2, 2021

Rate Law

Q. Consider the following elementary equation:H2O2(g) → H2O(g) + O(g)What is the order with respect to H2O2?What is the overall order of the reaction?...

Solved • Apr 2, 2021

Weak Acids

Q. In a 1.0x 10-4 M solution of HClO(aq), identify the relative molar amounts of these species. (Most to least) HClO  H2O H3O+ OH- OCl-

Solved • Apr 2, 2021

Cell Potential

Q. Calculate the standard free-energy change for the following reaction at 25 °C. 2 Au3+(aq) + 3 Cr(s) ↔ 2 Au(s) + 3Cr2+(aq)

Solved • Apr 2, 2021

Intermolecular Forces

Q. Which of the following pairs exhibit an ion-dipole interaction?CH3OH and Na+CH3CH2OH and H2OCl– and K+CH3CH2CH2CH2CH3 and CH3CH2CH2CH2COOH

Solved • Apr 2, 2021

Balancing Chemical Equations

Q. The basic principle in balancing a chemical equation is to _____ A) have the same number of reactants as products B) have the same number of atoms ...

Solved • Apr 2, 2021

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Ch.1 - Intro to General Chemistry
Classification of Matter The Scientific Method Filtration Standard Deviation, Mean, Median & Mode Physical & Chemical Changes Chemical Properties Physical Properties Intensive vs. Extensive Properties Temperature Scientific Notation SI Units Metric Prefixes Significant Figures Significant Figures: Precision in Measurements Significant Figures: In Calculations Accuracy & Precision Conversion Factors Types of Energy Dimensional Analysis Density Density of Geometric Objects Density of Non-Geometric Objects
Ch.2 - Atoms & Elements
The Atom Subatomic Particles Isotopes Ions Atomic Mass Periodic Table: Classifications Periodic Table: Group Names Periodic Table: Representative Elements & Transition Metals Periodic Table: Element Symbols Periodic Table: Elemental Forms Periodic Table: Phases Periodic Table: Charges Calculating Molar Mass Mole Concept Law of Conservation of Mass Law of Definite Proportions Atomic Theory Law of Multiple Proportions Millikan Oil Drop Experiment Thomson's Cathode Ray Tube Experiment Rutherford Gold Foil Experiment The Chadwick Neutron Experiment Mass Spectrometry
Ch.3 - Chemical Reactions
Empirical Formula Molecular Formula Molecular Models Combustion Analysis Polyatomic Ions Naming Ionic Compounds Writing Ionic Compounds Naming Ionic Hydrates Naming Acids Naming Molecular Compounds Ionic and Covalent Compounds Metal Alloys Balancing Chemical Equations Stoichiometry Limiting Reagent Percent Yield Mass Percent Functional Groups in Chemistry
BONUS: Lab Techniques and Procedures
Laboratory Materials Distillation & Floatation Chromatography Filtration and Evaporation Extraction Test for Ions and Gases
BONUS: Mathematical Operations and Functions
Multiplication and Division Operations Addition and Subtraction Operations Power and Root Functions Power and Root Functions The Quadratic Formula
Ch.4 - Chemical Quantities & Aqueous Reactions
Solutions Molarity Osmolarity Dilutions Solubility Rules Electrolytes Molecular Equations Gas Evolution Equations Solution Stoichiometry Complete Ionic Equations Calculate Oxidation Numbers Redox Reactions Balancing Redox Reactions: Acidic Solutions Balancing Redox Reactions: Basic Solutions Activity Series Types of Chemical Reactions Normality & Equivalent Weight
Ch.5 - Gases
Pressure Units The Ideal Gas Law The Ideal Gas Law Derivations The Ideal Gas Law Applications Chemistry Gas Laws Chemistry Gas Laws: Combined Gas Law Manometer Mole Fraction Partial Pressure The Ideal Gas Law: Molar Mass The Ideal Gas Law: Density Gas Stoichiometry Collecting Gas Over Water Standard Temperature and Pressure Effusion Root Mean Square Speed Kinetic Energy of Gases Maxwell-Boltzmann Distribution Velocity Distributions Kinetic Molecular Theory Van der Waals Equation
Ch.6 - Thermochemistry
Nature of Energy Kinetic & Potential Energy First Law of Thermodynamics Internal Energy Endothermic & Exothermic Reactions Heat Capacity Constant-Pressure Calorimetry Constant-Volume Calorimetry Thermal Equilibrium Thermochemical Equations Formation Equations Enthalpy of Formation Hess's Law
Ch.7 - Quantum Mechanics
Wavelength and Frequency Speed of Light The Energy of Light Electromagnetic Spectrum Photoelectric Effect Diffraction vs Refraction De Broglie Wavelength Heisenberg Uncertainty Principle Bohr Model Emission Spectrum Bohr Equation Introduction to Quantum Mechanics Quantum Numbers: Principal Quantum Number Quantum Numbers: Angular Momentum Quantum Number Quantum Numbers: Magnetic Quantum Number Quantum Numbers: Spin Quantum Number Quantum Numbers: Number of Electrons Quantum Numbers: Emission Spectrum Quantum Numbers: Nodes Dimensional Boxes
Ch.8 - Periodic Properties of the Elements
The Electron Configuration The Electron Configuration: Condensed The Electron Configurations: Exceptions The Electron Configuration: Ions Paramagnetism and Diamagnetism The Electron Configuration: Quantum Numbers Valence Electrons of Elements Periodic Trend: Metallic Character Periodic Trend: Atomic Radius Periodic Trend: Ionic Radius Periodic Trend: Ionization Energy Periodic Trend: Successive Ionization Energies Periodic Trend: Electron Affinity Periodic Trend: Electronegativity Periodic Trend: Effective Nuclear Charge Periodic Trend: Cumulative
Ch.9 - Bonding & Molecular Structure
Lewis Dot Symbols Chemical Bonds Dipole Moment Octet Rule Formal Charge Lewis Dot Structures: Neutral Compounds Lewis Dot Structures: Sigma & Pi Bonds Lewis Dot Structures: Ions Lewis Dot Structures: Exceptions Lewis Dot Structures: Acids Resonance Structures Lewis Dot Structure: Formal Charge Average Bond Order Bond Energy Coulomb's Law Lattice Energy Born Haber Cycle
Ch.10 - Molecular Shapes & Valence Bond Theory
Electron Geometry Bond Angles Hybridization Molecular Orbital Theory Delocalized Electrons MO Theory: Heteronuclear Diatomic Molecules
Ch.11 - Liquids, Solids & Intermolecular Forces
Molecular Polarity Intermolecular Forces Intermolecular Forces and Physical Properties Phase Diagram Heating and Cooling Curves Unit Cell Bragg Equation and Electron Diffraction Atomic, Ionic, and Molecular Solids Clausius-Clapeyron Equation
Ch.12 - Solutions
Solutions, Molarity and Intermolecular Forces Making Solutions Henry's Law Calculate Molarity Mass Percent Molality Mole Fraction ppm Boiling Point Elevation Freezing Point Depression Colloid The Colligative Properties
Ch.13 - Chemical Kinetics
Rate of Reaction Average Rate of Reaction Instantaneous Rate of Change Arrhenius Equation Energy Diagram Catalyst Michaelis-Menten Equation Reaction Mechanism Rate Law Integrated Rate Law Identifying Reaction Order Collision Theory
Ch.14 - Chemical Equilibrium
Chemical Equilibrium Equilibrium Expressions ICE Chart Le Chatelier's Principle The Reaction Quotient
Ch.15 - Acid and Base Equilibrium
Identifying Acids and Bases Strong Acids and Strong Bases (IGNORE) Arrhenius Acid and Base Bronsted Lowry Acid and Base Conjugate Acids and Bases Amphoteric Lewis Acid and Base pH and pOH Strong Acid-Base Calculations Weak Acids Weak Bases Ka and Kb Ionic Salts Diprotic Acid Polyprotic Acid
Ch.16 - Aqueous Equilibrium
Buffer Henderson Hasselbalch Equation (IGNORE) Acid and Base Titration Curves Weak Acid Strong Base Titrations Weak Base Strong Acid Titrations Equivalence Point Strong Acid Strong Base Titrations Titrations of Diprotic and Polyprotic Acids Acid Base Indicators Ksp Selective Precipitation Formation Constant
Ch. 17 - Chemical Thermodynamics
Spontaneous Reaction First Law of Thermodynamics Second and Third Laws of Thermodynamics Entropy Boltzmann Equation Gibbs Free Energy
Ch.18 - Electrochemistry
Redox Reaction Balancing Redox Reaction The Nernst Equation Faraday's Constant Galvanic Cell Cell Notation Standard Hydrogen Electrode Ion Selective Electrodes Cell Potential Batteries and Electricity Electroplating Electrolysis of Water & Mixture of Ions
Ch.19 - Nuclear Chemistry
Radioactive Decay Alpha Decay Beta Decay Gamma Emission Electron Capture Positron Emission Band of Stability First Order Half Life Nuclear Fission Mass Defect Nuclear Fusion Nuclear Transmutation
Ch.20 - Organic Chemistry
Introduction to Organic Chemistry Structural Formula Stereoisomers Chirality Optical Isomers Hydrocarbon The Alkyl Group Naming Alkanes Naming Alkenes Naming Alkynes Organic Chemistry Nomenclature Benzene Alkenes and Alkynes Benzene Reactions Functional Groups Alcohol Reactions Carboxylic Acid Derivative Reactions Polymer
Ch.22 - Chemistry of the Nonmetals
Hydrogen Atom Alkali Metals Alkaline Earth Metals Periodic Trends and Diagonal Relationships
Ch.23 - Transition Metals and Coordination Compounds
Transition Metals Transition Metals Electron Configuration Oxidation States of Transition Metals Coordination Complexes Naming Coordination Compounds Coordination Isomers Crystal Field Theory Colors of Complex Ions