Question

A white coloured powder is used by the doctors for supporting fractured bones. (a)Write the chemical name of this powder. (b)Write its chemical formula. (c)Write the chemical equation when this white powder is mixed with water a hard solid mass is obtained. write the balanced chemical equation for the change.

Answer 1

This white coloured powder which is used by doctors in order to support fractured bones is Plaster Of Paris (POP).

Plaster Of Paris - CaSO₄.¹/₂ H₂O

When Plaster of Paris is mixed with water, a hard solid mass is obtained which is called Gypsum(CaSO₄.2H₂O).

CaSO₄.¹/₂ H₂O + 1 ¹/₂ H₂O -----------> CaSO₄. 2H₂O

Hope it helps!!

Answer 2

caso 4.2 H2O =c a s o4 dot 1 upon 2 H2O + 3 upon 2 H2O it is plaster of paris when gypsum is heated at 373 Kelvin then it will convert into plaster of Paris after half an hour it will again convert into gypsum when the Plaster of Paris is mixed with water a hard mass convert