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According to recent definations:the numerical value of a substance's molecular or atomic mass in atomic mass units is the same as that of its molar mass (the mass of one mole of that substance) in grams.So My question is :Isthe Atomicmassunit (amu) nothing but grms/mol?Please justify and explain a little bit about mole concept with an example as I am Having a difficulty even after having a class on it.Please consider and obligeThanks a lot

Neel Pratik Bhatt , 14 Years ago
Grade 11
anser 1 Answers
deeksha sharma

Last Activity: 14 Years ago

NO. One amu, according to defination is one-twelfth the mass of carbon 12 atom.\

Now mass of one carbon atom is 2*10-23 g

so, one amu is equal to 1.6* 10-24 g

To make these things simple, this value is taken as 1 amu.

(do notice that this value is same as the mass of one proton)

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