OML Search

What is a Mole?

Related Topics:
More Lessons for IGCSE Chemistry
Math Worksheets

A series of free IGCSE Chemistry Activities and Experiments (Cambridge IGCSE Chemistry).

Introduction to Moles
What is a mole?
A mole is a name for a specific number of things. There are 6.02 x 1023 things in a mole. 6.02 x 1023 is also called the Avogadro's number.
Counting Atoms
How to use moles to figure out how many atoms you have in something?
By using the periodic table, you can figure out the molar mass which is the amount that one mole of a substance weighs.
Once you weigh something to determine how many moles are in it by using molar mass, Avogadro's number allows you to figure out how out how many atoms there are. Isotopes & Relative Atomic Mass
Describe the term relative atomic mass.
Explain what is an isotope.
Calculate the relative atomic mass (Ar) for an element.

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.
Mathway Calculator Widget

OML Search

We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.