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6th of March 2017
Chemistry
Q:

How many molecules and atoms of sulphur are present in 0.1 mile of S8 molecules?

Vikas Mahajan - CBSE - Class XI Science

Monday, March 06, 2017 at 13:06:PM

A:

1 mole of S8 molecules = 6.023 x 1023 molecules of S8
Therefore 0.1 mole of S8 molecule  = 0.1 x 6.023 x 1023  molecules of S8
                                                 = 6.023 x 1022 molecules of S8
Also,                 1 molecules of S8 =  8  atoms of sulphur
                     6.023 x 1022 molecules of S8 = 8 x 6.023 x 1022   atoms of sulphur

                                                               = 4.82 x 1023  atoms of sulphur

Monday, March 06, 2017 at 17:28:PM