The Student Room Group

Mole concept help!!!

My revision guide says that relative masses have no units. Although, relative masses are the same as molar mass. And molar mass has an unit!( g/mol)
I'm confused!!!! :frown:
Original post by Angelin Ravi
My revision guide says that relative masses have no units. Although, relative masses are the same as molar mass. And molar mass has an unit!( g/mol)
I'm confused!!!! :frown:

So basically molar mass is the relative mass per mol in an element
Eg. CaCl2
40+(35.5*2) =111
How many moles of Ca?
Ans: 111/40
2.775 or 2.8g/mol
Hope this was what you were asking?
Original post by Starlight2000
So basically molar mass is the relative mass per mol in an element
Eg. CaCl2
40+(35.5*2) =111
How many moles of Ca?
Ans: 111/40
2.775 or 2.8g/mol
Hope this was what you were asking?


Yep! Thanks

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you