Best video I've seen on this topic .However, I would have just included zinc, it also forms a white ppt in NaOH ! , its soluble in excess giving colorless solution.
Aluminium is amphoteric so is able to act as both an acid and a base, it effective acts as an acid towards the hydroxide, neutralising it (simple explanation).
I was heating melted electronic scraps in hcl. Poured in NaOH(aq) and got a black precipitate. I have no idea what it could be. I thought it was iron but it wasn't green or red. I guess I'm going to have to dry it and do a flame test to find out.
Great video
Perfect sir exactly what my teacher explained in class
Best video I've seen on this topic .However, I would have just included zinc, it also forms a white ppt in NaOH ! , its soluble in excess giving colorless solution.
0:00 to 4:09 same observation of Zn+2 as aluminium
What's the theory behind this experiment
Can you do an experiment for Magnesium ion with titan yellow and NaOH in excess pls😢😢
YOU HAVE THE VOICE OF COGNITO
Nah not really
Yeah I see the similarities but then there are stark differences too.
why does excess sodium hydroxide redissolve the white precipitate in aluminum?
Aluminium is amphoteric so is able to act as both an acid and a base, it effective acts as an acid towards the hydroxide, neutralising it (simple explanation).
Thanks for this video ❤❤❤
I was heating melted electronic scraps in hcl. Poured in NaOH(aq) and got a black precipitate. I have no idea what it could be. I thought it was iron but it wasn't green or red. I guess I'm going to have to dry it and do a flame test to find out.
Awesome!
Thank you
Cool
merci beaucoup !
Icse class 10 gems English school ❤