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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 :

Is the 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 oblige

Thanks a lot

6 years ago


Answers : (1)


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)

6 years ago

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