Organic Chemistry Answers

2c) briefly why chemically did the prescribing of thalidomide for morning sickness in pregnant women lead to tragic consequences, including teratogenic effects?

Use ChemDraw for all chemical structures (ACS document 1996 settings)

1) s- limonene has a specific optical

rotation of 94 degree.the commercially supplied mixture of the latter has a 95%

enentiometric excess (ee)

1c)what effect does R-limonene have on plane polarised light?

hi, could you please help me answer this question.

Use ChemDraw for all chemical structures (ACS document 1996 settings)

1) s- limonene has a specific optical

rotation of 94 degree.the commercially supplied mixture of the latter has a 95%

enentiometric excess (ee)

1b)Draw the R-enantiomer of limonene?

hi, could you assist me in answering this question

Use ChemDraw for all chemical structures (ACS document 1996 settings)

1) s- limonene has a specific optical rotation of 94 degree.the commercially supplied mixture of the latter has a 95% enentiometric excess (ee)

1a) what is a chiral centre in organic

chemistry? 3marks

hi, help answer this question please.

Use ChemDraw for all chemical structures (ACS document 1996 settings)

1) s- limonene has a specific optical rotation of 94 degree.the

commercially supplied mixture of the latter has a 95% enentiometric excess (ee)

1d) what is the observed specific rotation of the above commercial mixture? (12marks)

1e)what percentage of each enantiomer is present in the above commercial mixture (95% ee in favour of S) (6marks)

1. A chemist wishes to make 5.00g of CuCl(s) by the reaction:

CuCl2(aq) + Na2SO3(aq) + H2O(l) → CuCl(s) + Na2SO4(aq) + 2HCl(aq).How many grams of CuCl2 and of Na2CO3 should be used if the method gives an 85.0% yield, CuCl2 is to be the limiting reactant, and a 50.0% excess of Na2SO3 is to be used?

3) the addition of HBr to 2-methylpropene (H2C=C(CH3)2) gives two isomeric bromoalkanes of molecular formula (C4H9Br)

3i) draw the structure and name of these two isomers

bromoalkanes.

3ii) indicate which would be the major product.

3iii) give a mechanic explanation for the reaction and product

distribution using the curly arrows (for full marks draw the carbocation

intermediate as the planar with an empty p-orbital and use red font for curly

arrows)

hi, could you help me with this questions

2a) Draw the anti-depressant, E-doxepin and drawing geometric isomer.

2b) Draw S-thalidomine and R-thalidomine

2c) briefly why chemically did the prescribing of thalidomide

for morning sickness in pregnant women lead to tragic consequences, including teratogenic effects?

Hi,

could you please help me answer these questions ASAP.

Use ChemDraw for all chemical structures (ACS document 1996 settings)

1) s- limonene has a specific optical rotation of 94 degree.the commercially supplied mixture of the latter has a 95% enentiometric excess (ee)

1a) what is a chiral centre in organic chemistry?

1b)Draw the R-enantiomer of limonene?

1c)what effect does R-limonene have on plane polarised light?

1d) what is the observed specific rotation of the above commercial mixture?

1e)what percentage of each enantiomer is present in the above commercial mixture (95% ee in favour of S)

1f)The S enantiomer has a characteristic smell of lemons, why does the R enantiomer smell of a different fragrance, that of oranges?

Count the valence electrons in the following complexes: Cr(CO)6, Fe(C5H5)(CO)2I, Cr(C5H5)2 and Mn2(CO)10 [HINT - one of these compounds does not obey the rule] and rationalise their stability with reference to the 18 electron rule.