Question

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Answer 1

1 gram atom = N – atoms = 6.023 x 1023atoms = gram atomic weight

gram atomic weight = weight of  N atoms in grams

1 gram molecule = N- molecules = 6.023 x 1023 molecules = gram molecular wt.

gram molecular wt. = wt. of N molecules in gram

number of moles of molecules ‘n’ = wt. (gram)/ molecular wt.= w/ m

number of moles of atoms ‘n’ = wt. (gram)/ atomic wt.

no. of moles ‘n’ = no. of particles / ( 6.023 x 1023)

Answer 2

1 mole of an element = gram atomic weight of that element = 22.4 L volume of that element in STP or NTP = 6.023 * 10 ^23 atoms..