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Molecular Mass and Formula Mass

 Hello! 

How are you all?  Today we will discuss molecular mass and formula mass. 

Molecular Mass:

The sum of atomic masses of all the atoms present in one molecule of a molecular substance, is it's molecular mass. 
For example: molecular mass of water is 18 amu, chlorine is 71 amu and carbon dioxide is 44 amu. 

Formula Mass:

The sum of atomic masses of all the atoms present in one formula unit of a substance. 
For example: formula mass of sodium chloride is 58.5 amu and that of CaCO3 is 100 amu. 

So this was the short introduction of basic terms. See you soon. Stay tuned. 



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 Hello everyone! I hope you all will be fine. Myself Maheen. And I'm masters in CHEMISTRY. Chemistry is not only a subject for me but it's passion for me. It's really interesting for me to study this subject. Some people take it difficult but I think it's not difficult. Actually they are not made to study chemistry. If you love a field it becomes easy for you. By the way if you keep in touch with me I will tell you a lot about my subject, my experience.