Search found 1569 matches

by ChenBeier
Sat Dec 16, 2017 3:48 am
Forum: Chemistry forum
Topic: Ethanol + amino ethane acid
Replies: 1
Views: 4445

First the formula of Amino ethane acid is NH2-CH2-COOH.
With ethanol CH3CH2OH it can react to an ester.

NH2-CH2-COOH + CH3CH2OH => NH2-CH2-COO-CH2CH3 + H2O

But if you mean NH2COOH Carbamic acid, then the reaction goes in this way,

NH2COOH + CH3CH2OH => CH3CH3NH2 +CO2
by ChenBeier
Fri Dec 15, 2017 12:33 pm
Forum: Chemistry forum
Topic: -N-N=O groups in PAH
Replies: 3
Views: 4599

That is what I said.
by ChenBeier
Fri Dec 15, 2017 12:11 pm
Forum: Chemistry forum
Topic: -N-N=O groups in PAH
Replies: 3
Views: 4599

These group is called Nitrosamine.

https://en.wikipedia.org/wiki/Nitrosamine
by ChenBeier
Mon Dec 11, 2017 8:19 am
Forum: Chemistry forum
Topic: Replacing charcoal with coal
Replies: 1
Views: 4112

To make explosives should not to be discussed in this forum.
by ChenBeier
Wed Dec 06, 2017 12:09 pm
Forum: Chemistry forum
Topic: Nanoparticles? Citrate ion?
Replies: 1
Views: 4317

Citrate is an complex agent for gold ions. Immersion gold bathes also contain this beside cyanide.
by ChenBeier
Tue Dec 05, 2017 9:20 am
Forum: Chemistry forum
Topic: URGENT CuSO4*5H2O + (NH4)2S2O8?????
Replies: 1
Views: 4634

In aqueous solution you have ions present, what means Cu2+, NH4+ SO4 2-, S2O8 2- Theoretically you can write Cu2+ + 4 py + S2O8 2- => Cu(py)4S2O8 Ammonium and Sulfate is remaining. CuSO4*5H2O + (NH4)2S2O8 + 4 py => Cu(py)4S2O8 + (NH4)2SO4 + 5 H2O For silver its similar. 2 AgNO3 + (NH4)2S2O8 +4 py =>...
by ChenBeier
Mon Dec 04, 2017 8:27 am
Forum: Chemistry forum
Topic: Is there any interaction between Fe3O4 and FeCl3
Replies: 1
Views: 3405

No really

in Fe3O4 the iron has oxidation number 2 and 3 in FeCl3 its also 3. So there will be no reaction between. FeCl3 contains sometime some amount of HCl. The HCl is able to react with Fe3O4.
by ChenBeier
Sat Dec 02, 2017 10:23 am
Forum: Chemistry forum
Topic: A question about the Lead II chromate
Replies: 1
Views: 3094

Check and compare the solubility (product) of the two lead compounds.
by ChenBeier
Wed Nov 29, 2017 11:19 am
Forum: Chemistry forum
Topic: urgent H20+02+cl2+mn
Replies: 1
Views: 3526

Depending on the solubilty limit both gases can gas out.

Chlorine reacts like in clorinated water in a swimmingpool.

Cl2 + H2O = HCl + HclO

The oxygen will be dissolved physically.
by ChenBeier
Mon Nov 27, 2017 1:39 pm
Forum: Chemistry forum
Topic: chemistry reactions for 27.11.2017, urgent for my homework
Replies: 1
Views: 3410

The question was already answered. There is to less information. It cannot be solved.
by ChenBeier
Sun Nov 26, 2017 3:09 pm
Forum: Chemistry forum
Topic: VERY URGENT, CHEMÄ°CAL REACTÄ°ONS,this is my home work.
Replies: 1
Views: 3404

Generally iron reacts wit thiocyanate to blood red iron thiocyanate. Also use in making movies for film blood.

Fe3+ + 3 SCN- => Fe(SCN)3

This happens in Tube 1 to 4.

In Tube 5 its only dissolving of mercury nitrate
by ChenBeier
Fri Nov 24, 2017 1:02 pm
Forum: Chemistry forum
Topic: help me please
Replies: 2
Views: 3283

ChenBeier wrote:
Addition of NaCl

2 CuSO4 + SO2 + 2 H2O + 2 NaCl => 2 CuCl + NaS2O4 +H2SO4
Correction

2 CuSO4 + SO2 + 2 H2O + 2 NaCl => 2 CuCl + Na2SO4 + 2 H2SO4
by ChenBeier
Fri Nov 24, 2017 12:39 pm
Forum: Chemistry forum
Topic: help me please
Replies: 2
Views: 3283

Cu2+ + e- => Cu+ Reduction SO2 + 2 H2O => SO4 2- + 4 H+ + 2 e- Oxidation KGV = 2 2 Cu2+ + 2 e- => 2 Cu+ 2 Cu2++ SO2 + 2 H2O => 2 Cu+ + SO4 2- + 4 H+ Addition of sulfate 2 CuSO4 + SO2 + 2 H2O => 2 Cu+ + 3 SO4 2- + 4 H+ Addition of NaCl 2 CuSO4 + SO2 + 2 H2O + 2 NaCl => 2 CuCl + NaS2O4 +H2SO4 Addo f t...
by ChenBeier
Tue Nov 21, 2017 7:24 am
Forum: Chemistry forum
Topic: CH3CH(OH)CH3 + NaClO + H2O = ???
Replies: 3
Views: 5869

Why you need a calculation. If you get heart then go to a hospital and see a doctor.

Why did you mixture it, for what purpose.
In this mixture the IPA will be oxidized to acetone. If free chlorine is present also chlorineacetone can be formed . That is Teargas.
by ChenBeier
Tue Nov 21, 2017 7:20 am
Forum: Chemistry forum
Topic: NaClO+NaHCO3=??
Replies: 1
Views: 3821

No reaction.