Search found 749 matches

by ChenBeier
Thu Apr 15, 2021 8:33 am
Forum: Chemistry forum
Topic: mystery substance
Replies: 6
Views: 209

Re: mystery substance

NO. Dont use the solver without knowledge what is going on. The main reaction is the redox reaction Al and HNO3 HNO3 + 3 H+ + 3e- => NO + 2 H2O Reduction 2 Al + 3 H2O => Al2O3 + 6 H+ + 6 e- Oxidation 2 Al + 2 HNO3 => Al2O3 + 2 NO + H2O summery The oxid is able to react with HF or CH3COOH.
by ChenBeier
Thu Apr 15, 2021 4:28 am
Forum: Chemistry forum
Topic: Question
Replies: 3
Views: 108

Re: Question

I was talking about the substites at C. Not about the number of chiral centers. Yes it has 6 centers.
by ChenBeier
Thu Apr 15, 2021 4:25 am
Forum: Chemistry forum
Topic: mystery substance
Replies: 6
Views: 209

Re: mystery substance

Oxidation of Aluminium, will create Aluminium oxide by nitric acid and Aluminium flouride by hydrogen flouride, Aluminium acetate is minor from acetic acid.
by ChenBeier
Wed Apr 14, 2021 11:40 pm
Forum: Chemistry forum
Topic: OrgChem
Replies: 2
Views: 105

Re: OrgChem

I would say on the 6-ring. 2 nitrogen and two oxygen deliver electrons.
by ChenBeier
Wed Apr 14, 2021 11:36 pm
Forum: Chemistry forum
Topic: Question
Replies: 3
Views: 108

Re: Question

If you have 4 different substitutes at one C, then this C ichiral.
by ChenBeier
Wed Apr 14, 2021 10:35 am
Forum: Chemistry forum
Topic: Coordination compound
Replies: 7
Views: 197

Re: Coordination compound

Sorry you have realy no idea. KAl(SO4)2 => K+ + Al 3+ + 2 SO4 2- We have two cathion and one type of anion. Means double salt. K4[Fe(CN)6] => 4 K+ + [Fe(CN)6] 4- We have only 1 type cathion and one type anion. It is similar NaCl => Na+ + Cl- so no double salt. Additional the complex what you have sh...
by ChenBeier
Wed Apr 14, 2021 5:12 am
Forum: Chemistry forum
Topic: Coordination compound
Replies: 7
Views: 197

Re: Coordination compound

No that is not the item we looking for. What happens if you dissolve the pottasiumferrocyanide in comparison of the potassiumaluminiumsulfate.
Think to the headline.
Write the equation in ionic form.
by ChenBeier
Wed Apr 14, 2021 12:36 am
Forum: Chemistry forum
Topic: Coordination compound
Replies: 7
Views: 197

Re: Coordination compound

Yes. Also can explain in this way. If compound is dissolved in water you can find potassium, aluminium and sulfat ions.
What is difference to K4[Fe(CN)6]. What will you find.
by ChenBeier
Tue Apr 13, 2021 8:21 am
Forum: Chemistry forum
Topic: Coordination compound
Replies: 7
Views: 197

Re: Coordination compound

Only a. Explain why please?
by ChenBeier
Tue Apr 13, 2021 6:53 am
Forum: Chemistry forum
Topic: Please help me
Replies: 1
Views: 137

Re: Please help me

Same answer for head line. Test one, what do you determine with BaCl2 normaly. [1] should be clear [2] can be several. Test two, which base is volatile? What does Silverion with chloride. Basic knowledge, precipitate [3]. What does the precipitate with this special base. Aluminium and base does what...
by ChenBeier
Tue Apr 13, 2021 6:37 am
Forum: Chemistry forum
Topic: Sorry
Replies: 1
Views: 92

Re: Please help me

Please use better head line " Please help me" is not good
The equation is wrong and not balanced.
The mentioned table is missing
by ChenBeier
Tue Apr 13, 2021 2:03 am
Forum: Chemistry forum
Topic: mystery substance
Replies: 6
Views: 209

Re: mystery substance

Very strong chemical mixture. It will be an mixture of aluminiumoxide and -flouride.
by ChenBeier
Sat Apr 10, 2021 2:06 am
Forum: Chemistry forum
Topic: Finding out pH of the solution
Replies: 8
Views: 269

Re: Finding out pH of the solution

I dont know where you get the ml. Both acetic acid and sodium acetate are added as the mass. To get ml need specific gravity of 100% Acetic acid and sodium acetate is anyway a salt or need concentration before adding.
by ChenBeier
Fri Apr 09, 2021 10:20 am
Forum: Chemistry forum
Topic: Finding out pH of the solution
Replies: 8
Views: 269

Re: Finding out pH of the solution

Yes correct
by ChenBeier
Fri Apr 09, 2021 6:26 am
Forum: Chemistry forum
Topic: chemistry reactions
Replies: 1
Views: 148

Re: chemistry reactions

I dont think there is a special reaction. Maybe olny exchange to Gold sulfate and beryllium chloride.