Why is atomic mass in 'u equal to molar mass in grams?

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Q. Molar mass of nitrogen is 14u .What will be the mass of one atom of nitrogen in grams.?

Gram Atomic mass is just the atomic mass expressed in grams ...ie, atomic mass with gram as units. Our book says that gram atomic mass and gram atom are the same thing (similarly for gram molecule and gram molecular mass) . But later a formula is given that : Gram atom = mass in grams / Atomic mass [RAM].

There are questions also that use this formula ( similarly for gram molecule) in which we have to find the number of "gram atoms " in a given mass of substance.

So what is the real meaning of gram atom and the formula ( and is is similar for gram molecules) ?

Q. The number of iron (Fe) atoms present in a pure sample of solid iron with a mass of 10 grams is equal to- (The atomic mass of iron is 55.9) .

Q. How many

A g

atoms are there in

0.0001

grams of

A g

Molar mass of

A g

108

grams per mole.

Molar mass is the mass (in grams) of how many moles of a substance?

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