(a) Interpretation: The mass of water that would be released when Plaster of Paris is completely dehydrated is to be calculated and the product is to be stated. Concept introduction: The water molecules attached to the crystal are known as the water of crystallization. The water of crystallization removes when a crystal is exposed to heat or high temperature leaving behind anhydrous form of crystal.
(a) Interpretation: The mass of water that would be released when Plaster of Paris is completely dehydrated is to be calculated and the product is to be stated. Concept introduction: The water molecules attached to the crystal are known as the water of crystallization. The water of crystallization removes when a crystal is exposed to heat or high temperature leaving behind anhydrous form of crystal.
Solution Summary: The author calculates the mass of water released when Plaster of Paris is completely dehydrated and the product of the reaction is CaSO_
The mass of water that would be released when Plaster of Paris is completely dehydrated is to be calculated and the product is to be stated.
Concept introduction:
The water molecules attached to the crystal are known as the water of crystallization. The water of crystallization removes when a crystal is exposed to heat or high temperature leaving behind anhydrous form of crystal.
Interpretation Introduction
(b)
Interpretation:
The mass of water that would be released when gypsum is completely dehydrated is to be calculated and the product is to be stated.
Concept introduction:
The water molecules attached to the crystal are known as the water of crystallization. The water of crystallization removes when a crystal is exposed to heat or high temperature leaving behind anhydrous form of crystal.
When natural light falls perpendicularly on a material A, it has a reflectivity of 0.813%. Indicate the value of the refractive index.
In piezoelectricity and piezoelectric ceramics, one of the following options is false:(A). Piezoelectricity allows an electrical signal to be transformed into a mechanical one.(B). PbZrO3 is a well-known piezoelectric ceramic.(C). Piezoelectricity and ferroelectricity in general have no relationship.(D). One of the applications of piezoelectricity is sonar.
(30 MARKS) Give the major product(s
) formed including relevant
stereochemistry or the complete
reaction conditions for the following
reactions. More than one step may be
required for each reaction arrow, in
which case the steps must be
numbered 1), 2) etc. (2 marks each
box) h)
i)
h)
OH
i)
HO
H3PO4, heat
2
Br
Chapter 9 Solutions
Chemistry for Today: General Organic and Biochemistry