Organic Chemistry Answers

Why 1 bromo cyclopropene not follow morkovnikov,s rule when treated with HOCl

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In the deeper parts of peat, the pe-value is buffered by the sulfur system, meanwhile the iron and mangan system buffers in the more superficial and oxidating peat layers

a) Calculate pe and the oxygen pressure (P_O2) in depth when the pH-value is 6.5 an if pe buffers by the following redox pair: SO₄^2- / HS^-(aq) where [SO₄^2-] = 0.0002 M and P_H2S(g) = 10^-4 atm

b) At another spot with pH = 6.0 the oxygen pressure was 10^-15 atm. Calculate the Mn²⁺ content if the redox pair MnO₂(s) / MN²⁺ buffers pe. 

Calculate the mass (g) of bromocyclohexane produced given that 1.56 mL of cyclohexane (density 0.779g/mL) is reacted with 1.80 mL of 0.87 M bromine. Give your answer to 3 places after the decimal.

Explain how the nature of the substituent affects the basicity of the substituted aniline.

Taking suitable example write the mechanism of benzoin condensation.

Write the product for the reaction of iodoethane with sodium nitrite and silver nitrite. explain why two different types of product are formed.

A researcher used a combustion method to analyze a compound use as a anti-knock additive in gasoline a 9.394mg sample of the yielded 31.154 of CO2 and 7.977mg of water in the combustion. calculate the percentage composition of the compound and determine it empirical formula

Examine the importance and impact of isomerism in industry – research case studies in order to consider the formation of different isomers during manufacture, how their presence may influence the industrial process, the differences in properties that they might have, and the possible consequences of ignoring the presence of isomerism.

Explain stereoisomerism and the different types that exist (i.e. geometric and optical). 

• Give simple and naturally occurring examples of each type to illustrate your explanations, 

• including structural & displayed formulae and 

• photographs of 3D models of stereoisomers (draw the optical isomers in 3D). 

• For geometric stereoisomerism, include cis and trans (Z and E) stereoisomers of unsaturated fatty acids (e.g. oleic acid and elaidic acid).

• For optical isomerism, include amino -acids (e.g. L-alanine and D-alanine), sugars (e.g. glucose and galactose) – draw the linear structures for the monosaccharides

• and starch with cellulose. Compare different stereoisomers of the same molecular formula, considering any difference in physical or chemical properties that exist.

Define a potentiometric titration and draw a schematic graph of a redox potentiometric titration.