Melissa Anane Yes a good question. The equation shows how these ions exist in equilibrium naturally. When we add OH- ions they react with the H3O+ on the right hand side and according to Le Chatellier's principle a reduction in H3O+ will mean equilibrium will shift to the right to replace them and hence produce a complex with one less proton on the water ligand. I hope this has answered your question! It can be written without the water or OH- at all for a much more simplified equation.
Hey Chris! Great video. Under -Amphoteric hydroxides -Chromium Hydroxide The first equation, the chromium hydroxide is acting as a base, but over here you have displayed [Cr(H2O)5(OH)3] shouldn't it be [Cr(H2O)3(OH)3] because then this would be a maximum of 8 ligands.. but in the second equation Chromium hydroxide is acting as an acid and the molecular formula is [Cr(H2O)3(OH)3] Is it alright?
These videos are great; please keep up the good work!
mohamed tabal Thanks very much. I'm glad they are of use. Please share with others who you think would find them just as helpful!
Sure :)
I was wondering: For the equilibrium reaction with :OH-, why did you write it H20 on the left hand side of the equation rather than OH?
Melissa Anane Yes a good question. The equation shows how these ions exist in equilibrium naturally. When we add OH- ions they react with the H3O+ on the right hand side and according to Le Chatellier's principle a reduction in H3O+ will mean equilibrium will shift to the right to replace them and hence produce a complex with one less proton on the water ligand. I hope this has answered your question! It can be written without the water or OH- at all for a much more simplified equation.
A Level Chemistry Revision Videos That is so clear :D Thank you very much!
Sir do we need to know chromium ion reactions with acids and bases for aqa spec current
Thank you so much!! These videos are a lifesaver! :) God bless.
Pleased they are helping you. Hope revision is going well!
Thanks, excellent explanation once again
Glad you liked it!
Do we have to know how to distinguish between Fe2+ and Fe3+ ions with an alkali?
Thank you!! This video is super helpful!
Is FeCO3 a complex ion?
Thanks 🙏
You’re welcome 😊
Hey Chris! Great video.
Under
-Amphoteric hydroxides
-Chromium Hydroxide
The first equation, the chromium hydroxide is acting as a base, but over here you have displayed [Cr(H2O)5(OH)3]
shouldn't it be [Cr(H2O)3(OH)3] because then this would be a maximum of 8 ligands..
but in the second equation Chromium hydroxide is acting as an acid and the molecular formula is [Cr(H2O)3(OH)3]
Is it alright?
Yes that's what I put. Sorry it must be my handwriting. 😃
is this AQA?
I love your videos.
Thanks