Search found 1569 matches
- Fri May 10, 2024 9:55 am
- Forum: Chemistry forum
- Topic: Iron precipitation
- Replies: 2
- Views: 66
Re: Iron precipitation
Better use Ammonia in excess. Zinc get complex. Iron get hydroxide precipitation
- Mon May 06, 2024 7:21 am
- Forum: Chemistry forum
- Topic: Seeking for program to spectrophotometer Halo Rb-10
- Replies: 3
- Views: 79
- Mon May 06, 2024 6:11 am
- Forum: Chemistry forum
- Topic: Seeking for program to spectrophotometer Halo Rb-10
- Replies: 3
- Views: 79
Re: Seeking for program to spectrophotometer Halo Rb-10
Probably ask the manufacturer of the machine.
https://www.google.com/search?q=halo%20 ... irefox-b-m
https://www.google.com/search?q=halo%20 ... irefox-b-m
- Mon Apr 29, 2024 10:16 pm
- Forum: Chemistry forum
- Topic: Seeking Advice for Pollution Mask Chemical Absorbers
- Replies: 1
- Views: 45
Re: Seeking Advice for Pollution Mask Chemical Absorbers
For SO2, Carbonate, Hydroxide,
For CO Copper-I-chloride-Ammonia.
For CO Copper-I-chloride-Ammonia.
- Fri Apr 26, 2024 1:01 am
- Forum: Chemistry forum
- Topic: Molecular formula of the compound CH₂O
- Replies: 15
- Views: 5004
Re: Molecular formula of the compound CH₂O
It was alredy clarified. No need to explain again.
- Tue Apr 23, 2024 1:31 am
- Forum: Chemistry forum
- Topic: Calculate the volume of gas under standard conditions
- Replies: 1
- Views: 440
Re: Calculate the volume of gas under standard conditions
Molar mass propane C3H8 = 44 g/mol and butane C4H10 = 58 g/mol ratio 1:2 means 44 g : 116 g, in sum 160 g 12 kg is then 75 times more means 3300g propane and 8700 g butane. In mol its 75 : 150 mol Energy is 75 mol x 2220 kJ/ mol = 166500 kJ and 150 mol x 2850 kJ/mol = 427500 kJ in sum its 594000 kJ ...
- Thu Apr 18, 2024 1:51 pm
- Forum: Chemistry forum
- Topic: CHANGE PASSWORD MissColorado
- Replies: 1
- Views: 494
Re: CHANGE PASSWORD MissColorado
Go to Profil, edit Profil, edit Account settings
- Thu Apr 18, 2024 12:11 am
- Forum: Chemistry forum
- Topic: stoichiometry
- Replies: 1
- Views: 468
Re: stoichiometry
What has stoichiometry to do with temperature.
What is the reason for your question.
What is the reason for your question.
- Wed Apr 17, 2024 5:14 am
- Forum: Chemistry forum
- Topic: How is the volume of salt in the problem calculated?
- Replies: 1
- Views: 460
Re: How is the volume of salt in the problem calculated?
Volume is not possible, only mass. Start with equation of saponification and also combustion. The moles CO2 refers of the amount of carbon and the water of the amount of hydrogen. The saponification gives also the moles of glycerol , where you can calculate the Fragment what is going away in mass. T...
- Tue Apr 16, 2024 8:38 am
- Forum: Chemistry forum
- Topic: Complete these reactions
- Replies: 4
- Views: 522
Re: Complete these reactions
AgTiO2 and MnTiO2 cannot be. Silver is monovalent, manganese bivalent and titanium tetra valent. The 3 reactions I had given already. AgxTi(1-x)O2 and MnyTi(1-y)O2. Make also no sense . If you put 1 for x or y then it would give AgO2 and MnO2 Manganese would be possible, but then has to use Mn-IV co...
- Mon Apr 15, 2024 10:13 pm
- Forum: Chemistry forum
- Topic: Complete these reactions
- Replies: 4
- Views: 522
Re: Complete these reactions
That is only a hydrolysis.
Ti(OC3H7)4 + 2 H2O => TiO2 + 4 C3H7OH
The Hydroxide will give Manganese- or silver oxide, what will be built in the Titaniumdioxide particles
2 AgNO3 + 2 NaOH => Ag2O + 2 NaNO3 + H2O
MnSO4 + 2 NaOH => MnO + Na2SO4 + H2O
A reducer is able to reduce to silver.
Ti(OC3H7)4 + 2 H2O => TiO2 + 4 C3H7OH
The Hydroxide will give Manganese- or silver oxide, what will be built in the Titaniumdioxide particles
2 AgNO3 + 2 NaOH => Ag2O + 2 NaNO3 + H2O
MnSO4 + 2 NaOH => MnO + Na2SO4 + H2O
A reducer is able to reduce to silver.
- Mon Apr 15, 2024 11:27 am
- Forum: Chemistry forum
- Topic: New topic: Electrochromic windows/smart glass and their reaction
- Replies: 2
- Views: 531
- Mon Apr 15, 2024 3:07 am
- Forum: Chemistry forum
- Topic: Temperature effect on the reaction
- Replies: 3
- Views: 487
Re: Temperature effect on the reaction
Figur out if the reaction is exothermic or endothermic.
If exothermic equilibrium shifts left, if endothermic it shifts right, if temperature is increase.
If exothermic equilibrium shifts left, if endothermic it shifts right, if temperature is increase.
- Sun Apr 14, 2024 2:48 pm
- Forum: Chemistry forum
- Topic: please help
- Replies: 8
- Views: 614
Re: please help
I am confused now what you want?
Ps: you can edit your Postings
Ps: you can edit your Postings
- Sun Apr 14, 2024 2:30 pm
- Forum: Chemistry forum
- Topic: please help
- Replies: 8
- Views: 614
Re: please help
Which one
1,2-Propylene glycol or 1,3 Propylene glycol
But above you write in opposit direction
Propylen glycole down to ethylen glycole
Ethylenglycole to Glycolaldehyd HOCH2CHO
Glycolaldehyd + Methylgrignard => 1,2- Propylenglycol
1,2-Propylene glycol or 1,3 Propylene glycol
But above you write in opposit direction
Propylen glycole down to ethylen glycole
Ethylenglycole to Glycolaldehyd HOCH2CHO
Glycolaldehyd + Methylgrignard => 1,2- Propylenglycol