Draw [Cu(H2O)6]2+ and explain why is it blue in colour.

[Cu(H2O)6]2+ is and octahedral shaped complex which I shall draw on the whiteboard.

It is blue for thw following reasons:

When the water ligands bond to the Cu2+ ion, it causes the d orbitals to split into 2 sets at different energy levels. Electrons in the lower energy d-orbitals absorb red light to promote the electrons to a higher energy d-orbital. This means blue light will be reflected and hence the colour of the complex is blue.

AJ
Answered by Amaya J. Chemistry tutor

52259 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

What is the trend in ionization energy across period 3 in the periodic table?


A 20cm³ sample of lithium hydroxide solution of unknown concentration is neutralised by 12.25cm³ of 0.15mol/dm³ of sulfuric acid. Calculate the concentration of the lithium hydroxide solution.


How would you determine the pH of a solution?


How do you go about answering titration equations?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences