Search found 5 matches

by Monteiro
Sat Jul 11, 2020 9:52 am
Forum: Chemistry forum
Topic: Question about aluminium electrolysis (little complex)
Replies: 9
Views: 1836

thanks again for the explanation. Can you confirm my logic over there? I just edited the post and you replied almost the same time. Very thanks
by Monteiro
Sat Jul 11, 2020 8:54 am
Forum: Chemistry forum
Topic: Question about aluminium electrolysis (little complex)
Replies: 9
Views: 1836

Thanks for the explanation, but why i can't use (12 x 96500)? i thought it was based on the balancing and not on just 1 mol of Al. Your results matched perfectly. :D edit: i guess i figured it out. when I do 135000 x 28800 x 27 / (12x96500) I'm saying that 1mol of Al is receiving 12mols of electrons...
by Monteiro
Fri Jul 10, 2020 1:39 pm
Forum: Chemistry forum
Topic: Question about aluminium electrolysis (little complex)
Replies: 9
Views: 1836

Question about aluminium electrolysis (little complex)

First of all, I'm not a native english speaker, some terms maybe a little off Basically, my professor asked how much liters of oxigen are produced based on an aluminium electrolysis in an industrial process, this is the equation: 2Al2O3 = 4Al + 3O2 This electrolysis was done at 900Celsius, using gra...
by Monteiro
Wed Apr 08, 2020 4:44 pm
Forum: Chemistry forum
Topic: Need help whit iron redox
Replies: 2
Views: 1688

Ok Buddy. Iron is able to have different oxidation numbers. Basically + 2 and +3 In the First experiment iron goes from 0 to +2 by adding an acid in this case acetic acid (vinegar). Fe + 2 H+ => Fe2+ + H2 In the second test he add peroxide an oxidizer The oxidation number change from +2 to + 3. 2 F...
by Monteiro
Wed Apr 08, 2020 9:16 am
Forum: Chemistry forum
Topic: Need help whit iron redox
Replies: 2
Views: 1688

Need help whit iron redox

First of all, if i wrote anything wrong, feel free to correct me. Hey guys, hope you good, My teacher did some reactions using iron, but i didn't get everything right. He used steel wool, hydrogen peroxide, H+ from ethanoic acid from vinegar and hypochlorite from solution. On the first reaction he a...