Question

calculate no. of atoms in 3.2 gram of sulphur?​

Answer 1

weight of 1mole sulphur=molar mass of sulphur=32g.

32g=1mol

3.2g=0.1mol

1mol has 6.022*10^23 atoms.

so,

0.1mol has 6.022*10^22atoms.

ANS...

Answer 2

1 gram of atom = 32 gram

n gram of atom in 3.2 gram

1=32

n=3.2

cross multiply

3.2×1=n×32

3.2=n×32

n=3.2/32

n=0.1

0.1 gram of atom is present in 3.2 gram of sulphur