Chemistry - Molecules and their Composition - Revised
Learn more about molecular formulas, empirical formulas, and Avogadro's number with this free chemistry course.
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Molecules are made up of atoms and are the smallest particle in a chemical element or compound. This course will introduce you to the fundamentals of molecules and their composition. You will study molecular formulas, which are essentially the actual number of atoms in a molecule, and empirical formulas which tell you what people have observed. You will also study the mole and Avogadro's number which is equal to 6.023 × 10 to the power of 23.
You will then study molecular formulas and empirical formulas from the mass composition and learn how to balance chemical equations. This course will also discuss stoichiometry which is the study or the calculation of the relationships between the different molecules in a reaction. You will also learn about the limiting reagent which is basically the reactant that produces the least amount of product. You will also study how to solve mass composition problems.
Learning how to convert between atomic mass and grams using Avogadro’s number or the Mole is one of the important topics you will study in this course. Once you have mastered this, you will be able to easily work out ratios and weights of molecules. You will also learn how to balance chemical equations, and get viable chemical reactions by balancing the reactants within equations. So, check out this course and learn more about stoichiometry today!Start Course Now
Fundamentals Of Molecules And their Composition
Fundamentals Of Molecules And their Composition - Learning Outcomes
Molecular and Empirical Formulas
The Mole and Avogadro's Number
Formula from Mass Composition
Another Mass Composition Problem
Balancing Chemical Equations
Stoichiometry: Limiting Reagent
Fundamentals Of Molecules And their Composition - Lesson Summary
Having completed this course you will be able to:
- Outline the empirical, molecular and structural formulas
- Use the Periodic Table and the 'amu' to work out weights and ratios
- Convert between Avogadro's number (moles) and grams
- Derive the empirical structure from the mass composition
- Demonstrate how to balance a chemical equation
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