How many molecules and atoms of Sulphur are present in 0.1 mole of S8

1.	How many molecules and atoms of Sulphur are present in 0.1 mole of S8 molecules.
Answer» 1 mole of S₈molecules = 6. 022x10²³molecules 0.1 mole of S₈ molecules = 6. 022x10²³ x 0.1 = 6.022 x 10²² molecules One molecule of S₈ contains 8 atoms of Sulphur Therefore 6.022x10²² molecules of S₈ contain =6.022 x 10²² x 8 = 4.816 x 10²³ atoms.

How many molecules and atoms of Sulphur are present in 0.1 mole of S8 molecules.

Answer»

1 mole of S₈molecules = 6. 022x10²³molecules

0.1 mole of S₈ molecules = 6. 022x10²³ x 0.1 = 6.022 x 10²² molecules

One molecule of S₈ contains 8 atoms of Sulphur

Therefore 6.022x10²² molecules of S₈ contain =6.022 x 10²² x 8 = 4.816 x 10²³ atoms.