Inorganic Chemistry

What would happen if I had a hydrogen (H2) torch burning inside a container full of nitrogen (N2) and nitrous gas (NO2)? Will the reaction create ammonia/ammonium? And if so, would the reaction be reversible at normal pressure?

I've become interested in being able to make magnets from scratch (without electricity), and turned to iron and iron oxides (such as hematite) to try and turn them into magnetite. Anyone knows if there's a way to do that? Or how feasible is it?

Greetings, yall. For personal interests, I am on an alchemical journey to creating an absolute unit of a Bismuth Crystal, similar in size to the ones sold on Ebay, like from Chinese labs et al. I have even bought a 7 lb specimen to stare at and reverse engineer what i think are physical clues.. I have long searched for months now everywhere I can for the apparently world's best-kept "trade secret". Simply put, I am a 28 year old female artist and self practicing energy/vibrational healer from the Appalachian region of NC. I have amassed ~80 lbs slowly over the past two years and have been very passionate and deliberate with my newfound love of metal..when im not st…

How can ı synthesis copper hyroxide?

Can someone help me figure out what I did wrong on these practice questions? I took screenshots and I don't know what I did wrong. This first question is from largest to smallest in atomic radius. This is also from largest to smallest in atomic radius.

How can ı synthesis Copper Oxychloride?

People, Have some Iridium chloride, and it has absorbed moisture, and now I can not determine the % of Ir as it is a blob now. Anyone know of a way to turn it into say, an oxide, weigh it, then redisolve it once the Ir content is known? Thanks, people.

So last weekend I got married and me and my wife bought beautiful matching Stirling silver wedding rings. (Expensive too) In my vanity, I thought mine was a tad too shiny so looked up and found a method to darken the silver by placing it in a bag with a recently crushed and boiled egg. The article suggested 5 hours, I checked mine after 20 minutes and it was completely copper coloured! I presume this is oxidisation with sulphur compounds. How can I reverse this? I’m currently boiling in baking powder to no avail. Please help, my wife is going to kill me!

Hi all. Asheekay from Pak-is-tan (yes, we're all tan here, hence the name :p). Big, huge, gigantic, colossal chemistry fan, but my knowledge is limited to basics, mostly. Came here to announce that I've found a way to make sodium metal via electrolysis of aqueous table salt but saw that you guys have already killed my buzz there. *sad face* Okay, now coming to the serious point. I was wondering if it's possible to carry out a double displacement between sulphuric or hydrochloric acid and a nitrate (ammonium nitrate, to be precise). I understand that ammonium nitrate is probably more polar than ammonium sulphate and chloride and thus would much rather prefer to s…

The carbothermic reduction of phosphoric acid is thought to be represented by the reaction: 4H3PO4 + 16C → 6H2 + 16CO + P4 The equilibrium equations for orthophosphoric acid are: H3PO4 + H2O ↔ H3O+ + H2PO4- H2PO4- + H2O ↔ H3O+ + HPO42- HPO42- + H2O ↔ H3O+ + PO43- Condensation reactions can join phosphoric acid molecules: 2H3PO4 → H4P2O7 + H2O H4P2O7 + H3PO4 → H5P3O10 + H2O Condensation between two -OH units of the same molecule can create a cyclic molecule: H5P3O10 → H3P3O9 + H2O The chemical structure of activated carbon is closely approximated by the structure of graphite: The thermodynamics of H3PO…

Hello you wondrous minds, this is my very first time ever posting in a science forum The last time I can remember I was doing this was back in college 15 years ago. Somehow even back then I knew I should have been paying more attention in the classroom. I am a sneaker collector and have been collecting sneakers all the way back from the 1990s. I have hundreds of pairs and I wanted to donate some of the older ones and I'm noticing that some of my sneakers are actually getting yellow soles on the rubber and foam parts, even the clear plastics you will find on the bubble part of the sneaker have developed a hazziness to them. I believe this is due to oxidation and jus…

I want to use lithium chloride to help me calibrate some humidity sensors in a sealed box. Apparently a saturated solution of lithium chloride can keep air at a humidity of 11.3% at room temperature. My question is, if I had 30 grams of LiCl in a container that wasn't sealed, so it could keep absorbing water from the environment, am I right in thinking it would be able to absorb ~35.6 ml of water? The solubility is 84.3 g/100 ml at 25 °C so I figured 84.3 g / 30 g = 2.81 and 100 ml / 2.81 = 35.6 ml - I want to make sure it can't overfill its container and cause a spill if I can't keep it airtight. Potassium carbonate has a solubility of 111-138 g/ml at 20 °C, dependi…

Recently I finally decided to rid my silicone/steel trivet of the mould that had been building up over the years through normal kitchen use after being left rolled up when not in use (a design feature). Submerging it in bleach for 24 hours the majority of the dense mould colonies succumbed to the bleach and disappeared: changing from black to white (or a lighter shade of the green silicone). After submerging them for 12 hours in a bicarbonate of soda bath to attempt to rid the silicone of the bleach odour, to no avail, I heated the silicone in an oven for 15mins at 120ºC (twice) in order to attempt to bring the oils (odour) to the surface of the silicone to be w…

Hello! I am a man far from chemistry, and I kind of regret being not very attentive in chem class during my school years. Does combination "Boric Acid (100 ppm) + Copper Sulphate (1 ppm) + Water (about 1000 litres) + Heat" produces any reactions that could harm a human? Thank you in advance!

Hi I I have some IC holder pins, I know they are gold due to the colour, however I am not sure if they are solid gold or just gold plated. Does anyone have ideas as to which is more likely. I can try and look at a cross sextion but even then lack the expertise to know what to look for. Thanks Paul

Dear community! I just stumbled upon a strange behavior of the Gibbs free enthalpy when fiddling about with Gibbs Helmholtz equation which I cannot explain. The first formula in the attached file is the one that I've been using all the time, the derivative of G with respect to temperature at constant pressure. The second one just came to my mind when using an alternative derivative. As cp of the reaction is, generally speaking, not equal to zero for reactions with no change in pressure, it seems that these two formulas contradict each other. Surely that cannot be. Anyone got a solution that resolves that contradiction? Thanks in advance.

Hey, I study Chem. eng in Madrid (Spain), so first of all, my English might be awful, so I apologize. I have a doubt about the radial part of polyelectronic atoms (you know, Schrödinger's equation etc). The radial part for Hydrogen is quite simple, but things get difficult when we talk about atoms with more than one electron (due to the shielding effect between electrons). My question is the following: How does the radial part of Schrödinger's equation change for polyelectronic atoms? I know there are a few ways of estimating the new radial part (SCF or STOs) but I don't need that. What I need is how does the graph change. For example, here it is represe…

Hey again. Okay so first of all, I don't know if inversion is spanglish, but I have a question about DMO in TMO. Inversion (at least in Spanish/Spanglish) is when the 2PI(bonding) orbitals have less energy than the 2SIGMA(bonding) orbitals, so they are completed with electrons before the 2SIGMA. I don't know if ' have explained myself, is is quite difficult to translate chemical terminology from English to Spanish. This inversion occurs, for example, in B2, C2 and N2 (because the difference in energy between 2s and 2p orbitals is extremely low). So hold your nose because here comes the question. Why CO suffers inversion and NO doesn't, I mean, why? …

Hey, I study chemical engineering in Madrid (Spain). Here, teachers do not like Moeller's diagram (my teacher, for example, has forbidden using it, and instead we use the Aufbau principle, which is similar). I don't know if this happens in your countries, but if it does happen, what are the reasons for this happening? I mean, I don't think there's anything wrong with it. Cheers.

If the change in enthalpy is calculated for a reaction at two different temperatures and pressures, and afterwards compared to another reaction for which the chamge in enthalpy is also calculated at the same pressures and temperatures, will it still be the same reaction that has the highest change in enthalpy? Thanks

Hey guys, So I did an experiment on reversible and irreversible reactions via cyclic Voltammetry. And my results show that Co3+ as Co(diNOsar)]Br3 is a reversible process (Co3+ can be reduced to Co2+ AND oxidised back) and [Co(en)3]I3 is irreversible (Co3+ can be reduced to Co2+ but not oxidised back) (both in pH 1 electrolyte solution). And im not quite sure why? I know it has something to do with lability of the ligands and maybe crystal field splitting. But for the most part Im lost. Thank you in advance

Hey, I study Chemichal engeneering in Madrid (Spain) and I have a doubt about a book. Do you know if the book Inorganic Chemistry (written by Catherine Housecroft) is the most "advanced" book about Inorganic chemistry (I mean, can I found books much more advanced and more profound, or is the Housecroft valid). I mean, im not going to work as a pure chemist (I think), but I dont want to spend loads of money if I can find better, profound and advanced books (considering that I study Chemical Engeneering and not pure chemistry, obviously). Thanks guys, and sorry for my English, tell me if there's something you dont understand! Cheers

Why BaCl2 solution is becoming cloudy after a few hours/days?

My question is how much N2 is there in an UHPN Tank ? I read it has 230 cu ft. and from a conversion table I saw online it would be 230*24= 5520 liters. Does that sound reasonable?

hello dear members, I am trying to make Zinc Hyrdoxide by electrolysis with Sodium bicarbonate and zinc rods in distilled water first and then I want to make zinc citrate by mixing zinc hyrdoxide and citric acid mixed with water. Can you please tell me if this is correct procedure to make zinc citrate. If yes, then do I need boil the mixture of zinc hydroxide and citric acid to get zinc citrate? My goal is to consume small quantity of zinc citrate because I cant buy it now I tried to google but couldn't find much help on either making zinc hyrdoxide and zinc citrate. I do not have zinc salt to make zinc hydroxide that way. You replies are appreciate…