
(a)
Interpretation : The oxidation state of tellurium in
Concept Introduction :
The oxidation state is also known as oxidation number that defines the degree of oxidation. This number represents the number of electrons that an atom can lose or gain or share due to the bonding with another element atom.
(a)

Answer to Problem 124CP
The oxidation state of tellurium in
Explanation of Solution
Given that
The molecular formula for telluric acid is
Oxidation state of O is -2 and H is +1. Let x be the oxidation state of
Hence, the oxidation state of tellurium in
(b)
Interpretation : The pH of the solution of
Concept Introduction :
The tellurium hexafluoride can be prepared by the reaction of elemental tellurium with the fluorine gas. The pH is defined as the measure of acidity or alkalinity of the solution, hydrogen ion concentration. When the pH value is less than 7 then it is acidic and the pH value is greater than 7 then it is base or alkaline solution.
(b)

Answer to Problem 124CP
The pH of the solution of
Explanation of Solution
The Structures of selenic acid and telluric acid is given below as,
Sulfuric and selenic acids have tetrahedral structure where as telluric acid has octahedral structure.
Given data is
Density of
Volume of
Mass of
Moles of
Also given that
Volume of
Pressure of
Temperature of
According to the stoichiometric equation one mole Te reacts with 3 moles of
Number of moles
Number of moles
Number of moles
Molarity of HF = 0.06878 M
HF has
Thus, the pH of the solution of
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Chapter 18 Solutions
EBK CHEMICAL PRINCIPLES
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