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1. The Chemical World(0)

The Scientific Method
(0)

2. Measurement and Problem Solving(0)

Scientific Notation
(0)

SI Units (Simplified)
(0)

Metric Prefixes
(0)

Significant Figures (Simplified)
(0)

Significant Figures: Precision in Measurements
(0)

Significant Figures: In Calculations
(0)

Conversion Factors (Simplified)
(0)

Dimensional Analysis
(0)

Density
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Density of Non-Geometric Objects
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3. Matter and Energy(0)

Classification of Matter
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States of Matter
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Physical & Chemical Changes
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Chemical Properties
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Physical Properties
(0)

Temperature (Simplified)
(0)

Law of Conservation of Mass
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Nature of Energy
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First Law of Thermodynamics
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Endothermic & Exothermic Reactions
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Heat Capacity
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Thermal Equilibrium (Simplified)
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Intensive vs. Extensive Properties
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4. Atoms and Elements(0)

The Atom (Simplified)
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Subatomic Particles (Simplified)
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Isotopes
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Ions (Simplified)
(0)

Atomic Mass (Simplified)
(0)

Periodic Table: Element Symbols
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Periodic Table: Classifications
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Periodic Table: Group Names
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Periodic Table: Representative Elements & Transition Metals
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Periodic Table: Phases (Simplified)
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Periodic Table: Main Group Element Charges
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Atomic Theory
(0)

Rutherford Gold Foil Experiment
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5. Molecules and Compounds(0)

Law of Definite Proportions
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Periodic Table: Elemental Forms (Simplified)
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Naming Monoatomic Cations
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Naming Monoatomic Anions
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Polyatomic Ions
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Naming Ionic Compounds
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Writing Formula Units of Ionic Compounds
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Naming Acids
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Naming Binary Molecular Compounds
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Molecular Models
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Calculating Molar Mass
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6. Chemical Composition(0)

Empirical Formula
(0)

Molecular Formula
(0)

Mole Concept
(0)

Mass Percent
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7. Chemical Reactions(0)

Chemical Reaction: Chemical Change
(0)

Balancing Chemical Equations (Simplified)
(0)

Solubility Rules
(0)

Electrolytes (Simplified)
(0)

Molecular Equations
(0)

Types of Chemical Reactions
(0)

Complete Ionic Equations
(0)

Gas Evolution Equations (Simplified)
(0)

8. Quantities in Chemical Reactions(0)

Stoichiometry
(0)

Limiting Reagent
(0)

Percent Yield
(0)

Thermochemical Equations
(0)

9. Electrons in Atoms and the Periodic Table(0)

Wavelength and Frequency (Simplified)
(0)

Electromagnetic Spectrum (Simplified)
(0)

Bohr Model (Simplified)
(0)

Emission Spectrum (Simplified)
(0)

Electronic Structure
(0)

Electronic Structure: Shells
(0)

Electronic Structure: Subshells
(0)

Electronic Structure: Orbitals
(0)

Electronic Structure: Electron Spin
(0)

Electronic Structure: Number of Electrons
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The Electron Configuration (Simplified)
(0)

The Electron Configuration: Condensed
(0)

Ions and the Octet Rule
(0)

Valence Electrons of Elements (Simplified)
(0)

Periodic Trend: Metallic Character
(0)

Periodic Trend: Atomic Radius (Simplified)
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Periodic Trend: Ionization Energy (Simplified)
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Periodic Trend: Electron Affinity (Simplified)
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Electron Arrangements
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The Electron Configuration: Exceptions (Simplified)
(0)

10. Chemical Bonding(0)

Lewis Dot Symbols (Simplified)
(0)

Ionic Bonding
(0)

Covalent Bonds
(0)

Lewis Dot Structures: Neutral Compounds (Simplified)
(0)

Bonding Preferences
(0)

Multiple Bonds
(0)

Lewis Dot Structures: Multiple Bonds
(0)

Lewis Dot Structures: Ions (Simplified)
(0)

Lewis Dot Structures: Exceptions (Simplified)
(0)

Resonance Structures (Simplified)
(0)

Valence Shell Electron Pair Repulsion Theory (Simplified)
(0)

Electron Geometry (Simplified)
(0)

Molecular Geometry (Simplified)
(0)

Bond Angles (Simplified)
(0)

Dipole Moment (Simplified)
(0)

Molecular Polarity (Simplified)
(0)

11 Gases(0)

Pressure Units
(0)

Kinetic Molecular Theory
(0)

The Ideal Gas Law
(0)

The Ideal Gas Law Derivations
(0)

The Ideal Gas Law Applications
(0)

Chemistry Gas Laws
(0)

Chemistry Gas Laws: Combined Gas Law
(0)

Standard Temperature and Pressure
(0)

Dalton's Law: Partial Pressure (Simplified)
(0)

Gas Stoichiometry
(0)

12. Liquids, Solids, and Intermolecular Forces(0)

Intermolecular Forces (Simplified)
(0)

Intermolecular Forces and Physical Properties
(0)

Atomic, Ionic and Molecular Solids
(0)

Heating and Cooling Curves
(0)

13. Solutions(0)

Solutions
(0)

Solubility and Intermolecular Forces
(0)

Solutions: Mass Percent
(0)

Molarity
(0)

Osmolarity
(0)

Solubility: Temperature Effect
(0)

Intro to Henry's Law
(0)

Dilutions
(0)

Solution Stoichiometry
(0)

Molality
(0)

The Colligative Properties
(0)

Boiling Point Elevation
(0)

Freezing Point Depression
(0)

Osmosis
(0)

14. Acids and Bases(0)

Acid-Base Introduction
(0)

Arrhenius Acid and Base
(0)

Bronsted Lowry Acid and Base
(0)

Acid and Base Strength
(0)

The pH Scale
(0)

Auto-Ionization
(0)

pH of Strong Acids & Bases
(0)

Acid-Base Reactions
(0)

Buffers
(0)

Strong Acid Strong Base Titrations (Simplified)
(0)

15. Chemical Equilibrium(0)

Rate of Reaction
(0)

Energy Diagrams
(0)

Chemical Equilibrium
(0)

The Equilibrium Constant
(0)

Le Chatelier's Principle
(0)

Solubility Product Constant (Ksp)
(0)

16. Oxidation and Reduction(0)

Calculate Oxidation Numbers
(0)

Redox Reactions
(0)

Spontaneous Redox Reactions
(0)

Balancing Redox Reactions: Acidic Solutions
(0)

Balancing Redox Reactions: Basic Solutions
(0)

Galvanic Cell (Simplified)
(0)

17. Radioactivity and Nuclear Chemistry(0)

Types of Radiation
(0)

Alpha Decay
(0)

Beta Decay
(0)

Gamma Emission
(0)

Positron Emission
(0)

Radioactive Half-Life
(0)

Measuring Radioactivity
(0)

13. Solutions

Molarity

13. Solutions

Molarity: Videos & Practice Problems

Video Lessons Practice Worksheet

Molarity Practice Problems

20 problems

Problem 1Multiple Choice

What is the definition of molarity?

Problem 2Multiple Choice

How does molarity differ from general concentration?

Problem 3Multiple Choice

Calculate the molarity of a solution containing 2 moles of solute in 4 liters of solution.

Problem 4Multiple Choice

What is the molarity of a solution with 0.75 moles of solute in 1.5 liters of solution?

Problem 5Multiple Choice

If you have a 3.0 M solution and you need 9.0 moles of solute, how many liters of solution do you need?

Problem 6Multiple Choice

How many moles of solute are in 2 liters of a 4 M solution?

Problem 7Multiple Choice

Using molarity as a conversion factor, how many liters of a 2 M solution are needed to obtain 6 moles of solute?

Problem 8Multiple Choice

If you have 5.0 liters of a 1.5 M solution, how many moles of solute are present?

Problem 9Multiple Choice

What is the molarity of a solution containing 0.5 moles of solute in 0.25 liters of solution?

Problem 10Multiple Choice

Determine the molarity of a solution with 1.2 moles of solute in 3.0 liters of solution.

Problem 11Multiple Choice

What is dimensional analysis and why is it important in solving molarity problems?

Problem 12Multiple Choice

Why is dimensional analysis useful in chemistry?

Problem 13Multiple Choice

In a laboratory, you have a 5.8 M NaCl solution. How would you use this information to prepare 1.0 liter of a 2.9 M NaCl solution?

Problem 14Multiple Choice

You have a 5.80 M NaCl solution. How many liters of this solution are needed to obtain 11.6 moles of NaCl?

Problem 15Multiple Choice

How many grams of NaCl are in 0.5000 liters of a 2.000 M NaCl solution? (Molar mass of NaCl = 58.44 g/mol)

Problem 16Multiple Choice

What is the mass of solute in 1.000 liter of a 3.000 M KCl solution? (Molar mass of KCl = 74.55 g/mol)

Problem 17Multiple Choice

You need to prepare 250. mL of a 0.100 M HCl solution from a 1.00 M stock solution. How much of the stock solution and water will you use?

Problem 18Multiple Choice

To make 500. mL of a 0.500 M NaOH solution, how much of a 2.00 M NaOH stock solution is needed?

Problem 19Multiple Choice

Which of the following best describes molarity?

Problem 20Multiple Choice

What is the primary purpose of dimensional analysis in chemistry?

Solutions: Mass Percent Practice Problems Osmolarity Practice Problems

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Molarity: Videos & Practice Problems

Molarity Practice Problems

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