Question

Calculate the number of gram atoms present in the following masses:-
i) 64g of oxygen
ii)140g of nitrogen​

Answer 1

Explanation:

ANSWER

No of moles = No of gram atoms

2 grams of hydrogen contains

1

2

=2 gram atoms.

28 grams of nitrogen contains

14

28

=2 gram atoms.

64 grams of sulphur dioxide contains

64

64

=1 gram atoms.

And, 256 grams of sulphur contains

32

256

=8 gram atoms.

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Answer 2

1. 32

2. 280

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