Mass of a particular molecule is 2.5 amu. Calculate the number of moles in 100 g of it.
Mass of a particular molecule is 2.5 amu.
So , Molar Mass = 2.5 g / mol ......
number of moles = mass in g . / molar mass . = 100 g / 2.5 g /mol . = 40 mol .........Answer ....
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