Search found 1561 matches
- Sun Apr 07, 2024 11:38 pm
- Forum: Chemistry forum
- Topic: I need help with some questions and types of problems
- Replies: 1
- Views: 56
Re: I need help with some questions and types of problems
1. Soap is made of amphipathic particles, the hydrophil part dissolves in water the hydrophob part in fat or oil. The soap molecules develop micelles. A dirt particle is fatty, so the particle will be surounded from the soap molecules, by stickig the hydrophob part in. The hydrophil part will be in ...
- Fri Apr 05, 2024 1:04 am
- Forum: Chemistry forum
- Topic: Understanding the Equilibrium Constant Expression
- Replies: 1
- Views: 50
Re: Understanding the Equilibrium Constant Expression
Law of mass action
K = C^c*D^d/(A^a*B^b)
K = constant, so changes of one component will affect all others.
https://www.chemistrylearner.com/law-of ... ction.html
K = C^c*D^d/(A^a*B^b)
K = constant, so changes of one component will affect all others.
https://www.chemistrylearner.com/law-of ... ction.html
- Tue Apr 02, 2024 11:25 pm
- Forum: Chemistry forum
- Topic: How to make Sodium hydroxymethanesulfonate
- Replies: 10
- Views: 267
Re: How to make Sodium hydroxymethanesulfonate
No it doesn't effect.
- Tue Apr 02, 2024 7:53 am
- Forum: Chemistry forum
- Topic: How to make Sodium hydroxymethanesulfonate
- Replies: 10
- Views: 267
- Thu Mar 28, 2024 4:01 am
- Forum: Chemistry forum
- Topic: Redox reactions
- Replies: 5
- Views: 158
Re: Redox reactions
Because in the logarithmen I used cox/cRed. Not the opposit. Log cox/ cred = - log cred/cox log/cI2/c^2I- = - logc^2I-/ cI2 https://en.m.wikipedia.org/wiki/Nernst_equation You are right it should be a minus like in the Literature but also the reduced form as numerator and the oxidised form as denomi...
- Thu Mar 28, 2024 12:50 am
- Forum: Chemistry forum
- Topic: Redox reactions
- Replies: 5
- Views: 158
Re: Redox reactions
Redox Potentials are measured to hydrogen and considered as oxidation.
I-/I2 is positiv. 0,535 V
NO2-/ NO3- is also positiv 0,94 V
Elements are put in by definition as 1 .
I-/I2 is positiv. 0,535 V
NO2-/ NO3- is also positiv 0,94 V
Elements are put in by definition as 1 .
- Wed Mar 27, 2024 11:07 pm
- Forum: Chemistry forum
- Topic: Acid sulfuric
- Replies: 1
- Views: 72
Re: Acid sulfuric
The question is what you want to do with this water later on. The sulfuric is an technical one and contain impurities, which can disturb further reactions. Only to lower pH it will work, but 95% is to strong. I dont think you can react pH 5 by using drops, it will go down to 1 or 2. What is the volu...
- Wed Mar 27, 2024 3:40 pm
- Forum: Chemistry forum
- Topic: Redox reactions
- Replies: 5
- Views: 158
Re: Redox reactions
We have two equations HNO2 + H2O => HNO3 + 2 H+ + 2e- 2 I- => I2 + 2 e- Nernst equation E1 = E0 + 0,059/2*log ( cHNO3 * c^2 H+ /c HNO2) E2 = E0 + 0,059/2 *log (cI2/c^2 I-) First equation cHNO3 = cHNO2 E1 = 0,94 +0,059/2 * log(c^2H+) pH = -log cH+ E1 = 0,94 - 0,059*pH Second equation E2 = 0,535 + 0,0...
- Wed Mar 27, 2024 5:06 am
- Forum: Chemistry forum
- Topic: How to make Sodium hydroxymethanesulfonate
- Replies: 10
- Views: 267
Re: How to make Sodium hydroxymethanesulfonate
Read again the Article, you get both.
- Tue Mar 26, 2024 10:58 pm
- Forum: Chemistry forum
- Topic: Complex Formation Equilibria
- Replies: 1
- Views: 103
Re: Complex Formation Equilibria
You need the complex building constant for CeY-.
Ce 3+ + Y 4- => CeY-
K = CeY-/(Ce 3+ *Y 4-)
pH dependency
Ce 3+ + Y 4- => CeY-
K = CeY-/(Ce 3+ *Y 4-)
pH dependency
- Tue Mar 26, 2024 8:45 am
- Forum: Chemistry forum
- Topic: K3RhCl6
- Replies: 3
- Views: 74
Re: K3RhCl6
I would react the salt first with sulfuric acid, to get rid of the Chloride.
The remaining Rhodiumsulfate can be electrolysed. Cathode what ever you like. Anode carbon preferred.
The remaining Rhodiumsulfate can be electrolysed. Cathode what ever you like. Anode carbon preferred.
- Tue Mar 26, 2024 7:48 am
- Forum: Chemistry forum
- Topic: K3RhCl6
- Replies: 3
- Views: 74
Re: K3RhCl6
You can try electrolysis or reduction with strong reducer, like SnCl2 or v
Ascorbic acid.
Ascorbic acid.
- Mon Mar 25, 2024 11:40 am
- Forum: Chemistry forum
- Topic: Redox reactions and standard electrode potentials
- Replies: 1
- Views: 65
Re: Redox reactions and standard electrode potentials
All compounds who has lower potential as - 0.029V will work as reducer, what means triiodide will work as oxidiser in this case.
No, it is opposit. 0V is more positive as - 0.029Vie, in combination with hydrogen, the triiodide ion will be a reducing agent...). Am I right?
- Fri Mar 22, 2024 5:03 am
- Forum: Chemistry forum
- Topic: Biochemical properties of piruvic acid
- Replies: 7
- Views: 266
Re: Biochemical properties of piruvic acid
You mixed it up. A physician is a doctor for medicine. What you mean is a physisit, who work with physics
So we don't give recomandation for medicine or application, and also not for making bombs or other pyro stuff, like molotov, etc.
Its forbidden to post here.
So we don't give recomandation for medicine or application, and also not for making bombs or other pyro stuff, like molotov, etc.
Its forbidden to post here.
- Fri Mar 22, 2024 3:32 am
- Forum: Chemistry forum
- Topic: Liquid-liquid extraction of weak electrolytes
- Replies: 1
- Views: 82