Question

calculate
the number of molecules of sulphur is at present in 16 gram of solid Sulphur

Answer 1

molecular mass of sulphur s8= 32 (which is atomic mass of s ) x 8

= 256 u

so, one mole of s8 molecule is 256 g and 1 mole of s8 molecule contains 6.022 x 10 exponent 23.

so, no of moles present in 16 g os solid sulphur=

16/256 =0.0625 moles

so, no of molecules present in 16g of s8 = 6.022 x 10 exponent 23 x 0.0625

=0.376375x 10 exponent 23

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)

____________________________

I hope, this will help you.☺

Thank you______❤

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