Question

Calculate the number of molecule of sulphur present in 16g of solid sulphur.​

Answer 1

Moles =Mass/Molecular Weight

Mole=16/16×2

Mole=16/32

Mole=0.5

No.of molecules=Moles×Avogadro Number

No.of molecules=0.5×6.022×10^23

3.011×10^23

HOPE THIS HELPS..

Answer 2

$\huge\mathfrak\green{answer!}$

To calculate molecular mass of sulphur:

Molecular mass of Sulphur (S8) = 8xMass of Sulphur = 8×32 = 256g

Mass given = 16g

Number of moles = mass given/ molar mass of sulphur

= 16/256 = 0.0625 moles

To calculate the number of molecules of sulphur in 16g of solid sulphur:

Number of molecules = Number of moles X Avogadro number

= 0.0625 x 6.022 x 10²³ molecules

= 3.763 x 10²² molecules

✿┅═══❁✿ 6ɪxᴛʏ9ɪɴᴇ ✿❁═══┅✿