Question

calculate the molar mass of 136gram of calcium Sulphur​

Answer 1

Answer:

Formula unit mass of CaSO

4

.2H

2

O

= (Number Calcium atoms x atomic mass of Calcium) + (Number Sulphur atoms x atomic mass of sulphur) + (Number Oxygen atoms x atomic mass of Oxygen) + (Number Water molecules x Molecular mass of water molecule)

=(1×40)+(1×32)+(4×16)+(2×18)

=40+32+64+36

=172

Formula unit mass of gypsum = 172

Answer 2

Answer:

$\large\sf\green{Given}$

The molar mass is defined as the mass of 1 mole of the given substance. To calculate the molar mass of the compound, we need an atomic weight of every atom present in the compound.

Sulfur atoms are an example for polyatomic molecules. The sulfur Molecule is made up of eight sulfur atoms.

The atomic weight of sulfur atom = 32g.

Molar mass of sulfur = 8 ✕ 32 = 256