Relative formula masses and molar volumes of gases

Question 1

calculate relative formula mass(Mr) from relative atomic masses (Ar)

Answer 1

Add all the relative atomic masses together

Question 2

Mole

Answer 2

A name given to a certain number

6.023 x 10 (23)

Question 3

Mole calculations formula

Answer 3

number of moles= Mass in g

Mr