Section: 1. Some Basic Concepts of Chemistry | Chemistry - Khan Academy + Learn from the Masters+Seema Dhawan Arora Chemistry

- Collapse Expand
  Importance of Chemistry
  
  Select activity Introduction to Chemistry
  
  Introduction to Chemistry Lesson
  
  Students must
  
  Mark as done
- Collapse Expand
  Nature of Matter
  
  Select activity Nature of Matter
  
  Nature of Matter Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Elements and Atoms
  
  Elements and Atoms Lesson
  
  Not available for guest users. Please register to access the content.
- Collapse Expand
  Properties of Matter and Their Measurement
  
  Select activity Measurement of Physical Properties
  
  
  
  Measurement of Physical Properties Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Comparing Celsius and Fahrenheit temperature scales
  
  
  
  Comparing Celsius and Fahrenheit temperature scales Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Converting Fahrenheit to Celsius
  
  
  
  Converting Fahrenheit to Celsius Lesson
  
  Not available for guest users. Please register to access the content.
- Collapse Expand
  Uncertainty in Measurement
  
  Select activity Introduction to Scientific Notation
  
  
  
  Introduction to Scientific Notation Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Scientific Notation Examples
  
  
  
  Scientific Notation Examples Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Express a Small Number in Scientific Notation
  
  
  
  Express a Small Number in Scientific Notation Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Significant Figures
  
  
  
  Significant Figures Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity More on Significant Figures
  
  
  
  More on Significant Figures Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Multiplying and Dividing with Significant Figures
  
  
  
  Multiplying and Dividing with Significant Figures Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Addition and Subtraction with Significant Figures
  
  
  
  Addition and Subtraction with Significant Figures Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity 1st Application of Dimensional Analysis
  
  
  
  1st Application of Dimensional Analysis Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity 2nd Application of Dimensional Analysis
  
  
  
  2nd Application of Dimensional Analysis Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Worked Example: Dimensional Analysis
  
  
  
  Worked Example: Dimensional Analysis Lesson
  
  Not available for guest users. Please register to access the content.
- Collapse Expand
  Laws of Chemical Combinations
  
  Select activity Law of Conservation of Mass
  
  
  
  Law of Conservation of Mass Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Law of Definite Proportions
  
  
  
  Law of Definite Proportions Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Law of Multiple Proportions
  
  
  
  Law of Multiple Proportions Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Gay Lussac's Law of Gaseous Volumes
  
  
  
  Gay Lussac's Law of Gaseous Volumes Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Avogadro's law
  
  
  
  Avogadro's law Lesson
  
  Not available for guest users. Please register to access the content.
- Collapse Expand
  Atomic and Molecular Masses
  
  Select activity Atomic, Molecular & Formula Masses
  
  Atomic, Molecular & Formula Masses Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Average Atomic Mass
  
  Average Atomic Mass Lesson
  
  Not available for guest users. Please register to access the content.
- Collapse Expand
  Mole Concept and Molar Masses
  
  Select activity The Mole and Avogadro's Number
  
  The Mole and Avogadro's Number Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Worked Example: Calculating Molar Mass and Number of Moles
  
  Worked Example: Calculating Molar Mass and Number of Moles Lesson
  
  Not available for guest users. Please register to access the content.
- Collapse Expand
  Percentage Composition
  
  Select activity Empirical, Molecular, and Structural Formulas
  
  
  
  Empirical, Molecular, and Structural Formulas Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Molecular and Empirical Formulas I
  
  
  
  Molecular and Empirical Formulas I Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Molecular and Empirical Formulas II
  
  
  
  Molecular and Empirical Formulas II Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Worked example: Determining an Empirical Formula from Percent Composition Data
  
  
  
  Worked example: Determining an Empirical Formula from Percent Composition Data Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Worked example: Determining an Empirical Formula from Combustion Data
  
  
  
  Worked example: Determining an Empirical Formula from Combustion Data Lesson
  
  Not available for guest users. Please register to access the content.
- Collapse Expand
  Stoichiometry and Stoichiometric Calculations
  
  Select activity Stoichiometry
  
  
  
  Stoichiometry Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Stoichiometry Example Problem 1
  
  
  
  Stoichiometry Example Problem 1 Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Stoichiometry Example Problem 2
  
  
  
  Stoichiometry Example Problem 2 Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Limiting Reagent
  
  
  
  Limiting Reagent Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Limiting Reactant Example Problem 1
  
  
  
  Limiting Reactant Example Problem 1 Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Worked Example: Calculating the Amount of Product Formed from a Limiting Reactant
  
  
  
  Worked Example: Calculating the Amount of Product Formed from a Limiting Reactant Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Molarity vs. Molality
  
  
  
  Molarity vs. Molality Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Mole Fraction, Molarity, Molality, ppm
  
  
  
  Mole Fraction, Molarity, Molality, ppm Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Mole Fraction & its Relation with Concentration Terms
  
  
  
  Mole Fraction & its Relation with Concentration Terms Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Concentration terms in Chemistry
  
  
  
  Concentration terms in Chemistry Lesson
  
  Not available for guest users. Please register to access the content.
  
  Select activity Worked example: Concentration Terms
  
  
  
  Worked example: Concentration Terms Lesson
  
  Not available for guest users. Please register to access the content.

1. Some Basic Concepts of Chemistry

Section outline

Importance of Chemistry

Nature of Matter

Properties of Matter and Their Measurement

Uncertainty in Measurement

Laws of Chemical Combinations

Atomic and Molecular Masses

Mole Concept and Molar Masses

Percentage Composition

Stoichiometry and Stoichiometric Calculations

About Us

Resources

Quick Link

Contact Us