WHAT IS THE CHEMICAL FORMULA OF PLASTER OF PARIS;AND MOLECULAR MASS OF IT?
The chemical formula of PLASTER OF PARIS is CaSO4. 1/2H2O.
and the molecular mass is:-
Molecular mass of CaSO4. 1/2 H2O= Mass of one atom of calcium+ Mass of one atom of sulphur
+ mass of four atoms of oxygen + 9 = 40 amu + 32 amu +
(4 × 16) amu + 9 amu = ( 40 + 32 + 64 + 9) amu = 145 amu.
Author by(Rajkumar)