Inorganic Chemistry Answers

1. What volume of a 6.0 M NaOH solution is needed to produce 3.0 L of a 0.1 M solution?

Write equations for the preparation of the olefin function in each of the following cases: - Reaction of an alcohol with a metal halide - Reaction of a metal halide with an olefin in an aqueous solvent (Reaction of an metal halide with a olefin in a nonaqueous solvent). - Reaction of a gaseous olefin with a metal halide solution (Reaction of a gaseous olefin with a solution of a metal halide) - Olefin substitution reactions - Reaction of metal carbonyls with olefins (Reactions of a metal carbonyl with an olefin)

You are required to standardize a dilute solution of sulphuric acid, and undertake the following steps: (i) 4.805 g of solid sodium tetraborate (Na2B4O7) are added to a 250 mL volumetric flask, and the solution made up to the mark with distilled water. (ii) 25.00 mL aliquots of the stock solution from (i) are transferred to conical flasks, for titration against the sulphuric acid solution in the burette. (iii) You perform titrations using two different indicators: bromocresol green, and phenolphthalein. With bromocresol green, the average titre volume is 22.50 cm3 , while with phenolphthalein, the average volume is 9.50 cm3 . (a) Write the balanced equation for the reaction between Na2B4O7 and sulphuric acid

 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- ?