Question

calculate the number of mole of sulphur (s8) present in 128 gram of sulphur. answer fast plzz

Answer 1

We know that Mole= Amount/Atomic mass here amount=128gm and atomic mass of sulphur=32 so mole=128/32=4

Answer 2

Answer:

Firstly we find the molecular mass of S8

Hence we know that atomic mass of S =32

therefore ,

molecular mass of S8 =32×8

=256u

so, moles = given mass /molar mass

=128/256

=0.5 mol

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