What is Mole? Definition, Meaning & Example
A unit of measurement representing 6.022 x 10^23 particles of a substance.
TL;DR: A unit of measurement representing 6.022 x 10^23 particles of a substance.
Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated
Mole: A unit of measurement representing 6.022 x 10^23 particles of a substance.
Explanation
The mole is the SI unit for amount of substance. One mole of any substance contains Avogadro's number (6.022 x 10^23) of particles. The molar mass of a substance in grams equals its molecular weight. Molar calculations are essential in stoichiometry and determining chemical equations. Molarity is the number of moles per liter of solution.
Example
One mole of carbon has a mass of 12 grams and contains 6.022 x 10^23 carbon atoms.
Frequently Asked Questions
What is Avogadro's number?
Avogadro's number is 6.022 x 10^23, the number of particles in one mole of any substance.
How do you calculate the number of moles?
Divide the mass of the substance by its molar mass to find the number of moles.
More Chemistry Terms
🤖 Stuck on any of these? Ask Syllab's free AI Tutor to explain step by step →