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Chemistry - Molecules and their Composition


Chemistry - Molecules and their Composition

Chemistry - Molecules and their Composition

Learn more about molecules and their composition.


Students: 680
Course Description

A molecule is a group of two or more atoms that bind together using chemical bonds. They may be from one or multiple elements and it is the ratio, or mass composition, of each molecule that gives the molecular compound its chemical characteristics.
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In this free online science course, you will learn about molecules and how they are composed of various elements, in mass, atoms and ratios. The course introduces the student to Avogadro’s number or the Mole, which is used to convert between atomic mass and grams, so that you will be able to work out ratios and weights of molecules. You will also learn how to balance chemical equations, and by balancing the reactants within equations, get viable chemical reactions. This branch of chemistry is known as Stoichiometry. The course will be of great interest to all students who wish to pursue a career in any of the sciences such as chemistry, physics, biology or geology, or the individual learner who simply wants to learn and understand how atoms form the molecules which make up all the material surrounding us.

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Certification

To qualify for your official ALISON Diploma, Certificate or PDF you must study and complete all modules and score 80% or more in each of the course assessments. A link to your Diploma certificate will then appear under the My Certificates heading of your My Account page.

Learning Outcomes

Learning Outcomes: - Understand 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 mass composition; - Balance an chemical equation.


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Module Title
Module 1: Fundamentals of Molecules and Their Composition
Module 2: Fundamentals of Molecules Assessment

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Background  
Course Rating (By Learners)
Course Title Chemistry - Molecules and their Composition
Course # 478
Course Publisher Khan Academy
Course Category 85
Content Origin
Course Description  A molecule is a group of two or more atoms that bind together using chemical bonds. They may be from one or multiple elements and it is the ratio, or mass composition, of each molecule that gives the molecular compound its chemical characteristics. In this free online science course, you will learn about molecules and how they are composed of various elements, in mass, atoms and ratios. The course introduces the student to Avogadro’s number or the Mole, which is used to convert between atomic mass and grams, so that you will be able to work out ratios and weights of molecules. You will also learn how to balance chemical equations, and by balancing the reactants within equations, get viable chemical reactions. This branch of chemistry is known as Stoichiometry. The course will be of great interest to all students who wish to pursue a career in any of the sciences such as chemistry, physics, biology or geology, or the individual learner who simply wants to learn and understand how atoms form the molecules which make up all the material surrounding us.
License  This course is available from Khan Academy OpenCourseWare through the following Creative Commons licence:
Creative Commons License
Release Date 07 November 2012
   
Content  
Course Duration (Avg Learner) 2-3 Hours
Video/Audio High
Audio Only High
Animation None
Assessments Yes
 
Education Level
Age appropriateness 16+ Years
Minimum Grade/Class Level Higher High Secondary School
 
Validation Level 3
ALISON Testing Yes
Certification Availability
PDF Download Yes
Parchment Yes
Framed Certification Yes
   
Merchandise Availability
Marketing Information
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Course Forum  View

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  • Ahmad Muhammad Iraq As you know chemistry is king of science. Actually it was such an interesting subject and it was so helpful. 2014-10-18 13:10:44
  • Shelby Cruz United States of America Very good course! I learned what I needed to know and was challenged. 2014-09-25 19:09:24
  • Ildiko Marias Serbia It is not that hard. 2014-08-28 13:08:47
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Free, Online Chemistry - Molecules and their Composition Course.