Organic Chemistry Answers

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

1. Give two ionic equations representing the formation of the ions obtainable from hydrogen.
2. Hydrogen forms numerous hydrides with many elements of the periodic table.
a) give the formula of the stable hydride for each of the following elements: Li, Be, B, N, O and F.
b) Classify the hydrides in (a) as being predominantly ionic/ covalent
c) Give the reaction equation for a reaction between the hydride of Li and water

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

Draw the Lewis structure of H2CO and identify the hybridization of carbon in that structure

what is the result from oxidation glucose with weak oxidizer

Correct the following names and draw the bond-line structure
a) 2-methylcyclohexene
b) Trans-4-methyl-4-pentene
c) 2-ethyl-4-pentyn-2-ol
d) 2-ethylpropane