Question

Calculate the number of molecules of sulphur present in 128g of solid sulphur

Answer 1

HEY!!

The molecules formula of sulphur is given to be S8 ( it Contains 8 atoms of sulphur ). So , the molecular mass of sulphur molecule is 32 × 8 =256 u. This means that 1 mole of sulphur molecules is equal to 256 grams.

Answer 2

$<b>$☺ Hello mate__ ❤

◾◾here is your answer.

1 mole of solid sulphur (S8)

= 8 × 32g

= 256g

i.e., 256g of solid sulphur contains

= 6.022 × 10^23 molecules

Then, 128g of solid sulpur contains

(6.022×10^23 /256 )128 molecules

= 3.01× 10^23 molecules (approx)

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I hope, this will help you.☺

Thank you______❤

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