Organic Chemistry Answers

Which of the following statements most accurately describes the stereochemistry between the various cyclohexanes?

A Cis-1,2-dichlorocyclohexane and trans-1,2-dichlorocyclohexane rotate plane-polarized light in opposite directions, and together in equal proportions form a racemic mixture.
B) The diaxial and diequatorial forms of trans-1,3-dichlorohexane can be separated by their differing physical properties.
C) Only cis-1,4-dichlorocyclohexane is achiral due to a plane of symmetry, and cis-1,4-dichlorocyclohexane is diastereomeric to trans-1,4-dichlorocyclohexane
D) The conformational isomers of trans-1,2-dichlorocyclohexane are enantiomers, which are not interconvertible, but resolvable

Is N-Bromo methanamide a primary amide?

Draw the structure of NH3 molecule and indicate the relevant molecular and e
electronic geometry.

In one experiment, 1.25g of an ester was completely burnt in an excess of oxygen. 2.84g of carbon dioxide and 1.16g of water were the only products formed. Assuming that the ester contains only the elements carbon, hydrogen and oxygen, calculate the masses of carbon, hydrogen and oxygen in 1.25g of the compound

with the aid of a born haber cycle determinethe amount of energy required to break two molecules of solid barium flouride into its gasseous state

What is the formal charge on the underlined atoms in the following ions?
a) CO3
2-
b) NO3
-

Draw Lewis structures for the following molecules, including all major resonance
contributors (indicate the formal charge on each of the atoms in the structure [8]
(a) N2
(b) CH3CO2-
(c) O3