What is the difference between moles and molar?

Lets start with what a concentration is. Concentration is the amount of something in a volume. For example, 1 gram of sugar in one litre of water is 1 gram per litre. This can be written as 1g/L (the division sign means "per"). When we are talking about moles, we are talking about an amount of something. 1 mole actually equals a certain amount of molecules (6.03x10^23 molecules to be exact). So one mole of sodium hydroxide literally means 6.03x10^23 molecules of sodium hydroxide.

Molar is a concentration. It means "moles per litre". So because mole is an actual amount, this means the amount of a molecule in a litre of liquid. For example, 1 molar sodium hydroxide would mean 1 mole of sodium hydroxide (6.03x10^23 molecules) in 1 litre.

BR
Answered by Ben R. Chemistry tutor

50275 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

Explain the trend in reactivity of the elements in Group 7.


Why does Sodium Chloride have high melting point?


Describe one method of producing oxygen gas.


Nitrogen has an atomic number of 7 and mass number of 14, an isotope of nitrogen has a mass number of 17. Explain what an isotope is and state how many electrons, protons and neutrons this isotope has?


We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences