Top answers

Describe the changes in the electronic properties of an phenyl ring when attached to an NO2 group or a NMe2 group when compared to a benzene ring.

NO2 is a strongly electron withdrawing group, making the ring more electrophilic (pi withdrawing).NMe2 is a strongly electron donating group, making the ring more nucleophilic (pi donating).These changes are...
SP
9099 Views

What are the products of the hydrolysis of phenacetin by a base? Phenacetin was once used in analgesic tablets, but it is no longer used because it has severe side effects.

The functional group on the right side of the benzene ring is an ether , which does not react with base. The functional group on the left is an amide. Hydrolysis of an amide breaks the bond between the nitro...
ME
Answered by Mona E. • Chemistry tutor
2529 Views

Describe the electrolysis of potassium iodide in water. Include the overall balanced chemical reaction and the electrode reactions

The overall reaction is 2I - (aq) +2H 2 O (l) --> I 2(aq) + H 2(g) + 2OH - (aq) , the anode reaction is 2I - (aq) --> I 2(aq)­­ + 2e - and the cathode reaction is 2H + (aq) + 2e - --> H 2(g) . In aq...
PH
Answered by Pete H. • Chemistry tutor
60732 Views

How are trends in ionisation energy explained?

Horizontal trend: First ionisation energies increase going to the right in a period. This is due to an increase in the atomic mass (and number of protons) and hence in the electrostatic attraction between th...
MC
Answered by Miruna C. • Chemistry tutor
1854 Views

Explain the VSEPR Theory.

The acronym VSEPR is short for 'Valence Shell Electron Pair Repulsion'. Consequently, the VSEPR theory is about the repulsion effect of the most chemically important valence electrons and the influence of th...
TD
3978 Views