What is a mole?

A mole is a measure of quantity, such that when you have a mole of something, you have 6.02 x 1023 atoms/molecules of it. The number of atoms/molecules in a mole is called "Avogadro's Number" and is the number of atoms in 12g of carbon-12. For example, if I had 12 eggs in a box, you could say I have a dozen eggs in the box. Similarly, if I have 6.023 x 1023 molecules of water in a box, you could say I have a mole of water in the box.

AF
Answered by Amy F. Chemistry tutor

2240 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

Explain the collision theory.


Put these elements in ascending order of reactivity: Sodium, carbon, aluminium, copper, zinc, and then using your answer explain which elements can be extracted from their ores by carbon.


Calcium carbonate is burnt substance B is created. What is the formula for substance B and what is the equation when water is added?


Sodium’s atomic number is 11 and its mass number is 23. How many protons, electrons and neutrons does it have?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning