Question

calculate the number of molecules of sulphur present in 16 grams of solid sulphur

Answer 1

Atomic mass of S = 32g
Molecular mass of S8 = 8 x 32 = 256 g
Given mass of S8 = 16 g
Since 1 mole of S8 having mass 256 g contains 6.022 x 10∧23 molecules of Sulphur
Therefore 16 g of S8 will contain 6.022 x 10∧23 ÷ 256 x 16 
                                                     = 3.76 x 10∧22 molecules

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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