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

49115 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

Name two types of chemical bonds and describe each type in terms of their bonding structure and properties


Why is cyclohexa-1,3,5-triene no longer accepted for the structure of benzene where the molecular formula is C6H6? Which is more stable and why?


An industry is producing copper sulphate (CuSO4) from copper carbonate (CuCO3) and sulphuric acid (H2SO4). The company calculated that from 800 g of CuCO3 they will produce 1kg of CuSO4. However they only produced 900g. What is the percentage yield ?


What is the difference between Ionic and Covalant bonding?


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