Question

Calculate the number of molecules of sulphur present in 16gram of solid sulphur

Answer 1

>> 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.

Now, 256 g of sulphur = 1 mole of sulphur molecules

So, 16 g of sulphur = 1/ 256 × 16 mole of sulphur molecules

= 0.0625 mole of sulphur molecules

Also, 1 mole of sulphur molecules = 6.023 × 10²³ molecules

So, 0.0625 mole of sulphur molecules = 6.025 × 10²³ × 0.0625 molecules

= 3.76 × 10²² molecules

Hope it helps !!!

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, 16g of solid sulpur contains

(6.022×10^23 /256 )16 molecules

= 3.76 × 10^22 molecules (approx)

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I hope, this will help you.☺

Thank you______❤

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