Inorganic Chemistry Answers

 Hydroboration of styrene followed by oxidation with hydrogen peroxide leads to the formation of compound A. Oxidation of styrene with potassium permanganate in an acidic medium results in compound B. Compounds A and B can react with each other under acidic catalysis to form compound C. 

What is the volume of carbon dioxide (molar volume of ideal gas Vm = 22.4 L/mol), released during the complete combustion (in excess of O2) of 5.00 grams of compound C?

a) 7.00 L

b) 7.43 L

c) 7.67 L

d) 8.02 L

e) 8.31 L

What is the oxidation number of Manganese in MnO₄^-?

What is the oxidation number of sulphur in S₄O₆^2- ?

What are the significances of the percentage composition of essential oils?

1.                                             Fe³⁺ + e^- → Fe²⁺   E^o = +0.77 V

        Fe²⁺ + 2e^- → Fe    E^o = -0.44 V

•  Using the redox reactions of iron represented above, draw a potential diagram that summarizes the redox chemistry of iron in an aqueous solution
• Calculate the value of E for the reduction of Fe³⁺(aq) to iron metal

Describe selection rule and intensities

Given that E^o for the reaction below is +1.51 V,

(a)       calculate the reduction potential, E, in a solution of pH 2.5 and in which the ratio [Mn₂⁺]:[MnO₄^-] = 1: 100.

(b)       Show that E = +1:25 V when pH ¼ 3.0 and the ratio [Mn₂⁺]:[MnO₄^-] =1:100.

(c)       For a ratio [Mn₂⁺]:[MnO₄^-]=1000 : 1, what must the pH of the solution be to give a value of E = +1.45 V?

(d)       For a ratio [[Mn₂⁺]: [MnO₄^-]=1 : 100, determine E in a solution of pH 1.8.