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Questions tagged [inorganic-chemistry]

Inorganic compounds generally do not have C-H bonds, while organic compounds do have such bonds. The distinction between inorganic and organic chemistry, however, is far from absolute.

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Is it possible to create a salt with multiple anions with only one cation(e.g. CaBrCl)?

I know that usually more electronegative anions would displace less electronegative anions but is there a way to get different anions to "share" a cation?
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244 views

Solution containing Iodine

The question is:- Iodine dissolves in a variety of solvents forming solutions that are purple, brown or any intermediate shade. This property is due to:- Hydrolysis of iodine ...
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1answer
2k views

Memorize Transition Metal Electronic Ground State

In the course of my undergraduate studies it has become clearer and clearer that it is quite helpful to know the ground electronic state of transition metals by heart, if only to speed up the process ...
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959 views

Hydration of lithium salts

Why are lithium salts heavily hydrated? I am not able to understand this because I feel salts of larger cations like Caesium should be more hydrated because of the larger size, they can able to hold ...
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782 views

How to identify ionic compounds

I have a Chemistry lab in which I must design and carry out an experiment to determine the compound in each of eight numbered vials. Each vial contains one of these ionic compounds: BaCl2 CaCO3 Ca(OH)...
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62 views

What is the nature and character of fire? [duplicate]

What is fire? Is it a material or energy or something else? Please explain it to me. My friend asked me this. I am stuck with this problem.
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1answer
1k views

is there any mnemonic for the AXE method?

Is there any mnemonic that helps remembering the names of the different geometries (Shapes) that we obtain from applying the AXE method ?
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1answer
2k views

reaction between Iron(ii) and Vanadium(v)

When we reduce Vanadium (V) using iron(II), why are we adding 85% Phosphoric acid? After the above reduction, if we are going to titrate the mixture with Potassium permanganate, why are we adding ...
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1k views

What type of sensor technologies exist to determine the chemical composition of a polymer?

Let's say I have several pieces of trash and each is made with a different type of material like: Plastic bottle : High Density Polyethylene (HDPE) Cereal box : Paperboard & Epichlorohydrin ...
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1answer
14k views

Why do the reactions of Magnesium in steam and cold water differ?

"Magnesium has a very slight reaction with cold water, but burns in steam. A very clean coil of magnesium dropped into cold water eventually gets covered in small bubbles of hydrogen which float it ...
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2answers
265 views

How does expansion of electron shells work?

How does it work? I've read that its about the similarity of the energy levels of $3d$ and $3p$, but shouldn't the electron shell $4s$ be filled before $3d$ if filled? So what is done with the $3d$? I'...
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153 views

Hydrogen ozonide existence

Does the hydrogen ozonide exist? I mean if this compound could be found in Nature $$HO_3$$ I am interested in the theoretical or phenomenological of such a chemical compound...
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1answer
250 views

Does nitrogen pressure in tyres fluctuate to much a lower degree than air with changes in temperature?

This is my first question in this site. I am referring to this question.The linked question what is the advantage of filling nitrogen in bike tubes over air and I got some answers such as: The ...
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1answer
3k views

What is burst nucleation? [closed]

Can you tell me what is a burst nucleation process, and how can it be used for synthesising uniform nanoparticles? Can you also provide (if possible) any links to papers or materials regarding ...
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1answer
195 views

The Science Behind Fertilizer

Do you know some books or articles that elaborate on the chemistry behind fertilizers? I have taken organic chemistry so far and inorganic chemistry as well. I am also familiar with the Haber-Bosch ...
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1answer
297 views

How toxic is disilanol?

Silicon has been known to form analogues of organic compounds. For example, silicon with 4 hydrogen atoms forms silane as opposed to methane. This continues up the alkane list, with disilane for ...
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310 views

Ozonide v/s Ozonoid

Can anyone please clear the difference between ozonide and ozonoid. I've already googled it but came up with nothing
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1answer
501 views

Why is nicotinoyl chloride available as its hydrochloride salt? How can we separate them?

Nicotinoyl chloride is only available as its hydrochloride salt. Why can't nicotinoyl chloride be synthesized in free form? How can we seperate nicotinoyl chloride from its salt form? Can we try any ...
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1answer
62 views

Non-stoichometric compounds

I am looking for references (review articles, reports) about non-stoichometric compounds. Any idea of where should I look?
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341 views

Classical reason for good heat conductance in diamond?

My teacher in my physics course attributed this effect to phonons, more here, but I am skeptical about this argument, it feels like he is overlooking the whole question -- what about with Silica that ...
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1answer
688 views

Formation of coordination complexes?

I'm having trouble understanding how exactly coordination complexes are formed. Compounds such as $\ce{[Cu(H2O)6]++}$ are the ligands filled into the empty 3 of 4p orbitals+ 1 of 5s orbital + 2 of ...
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1answer
119 views

A full verion of the periodic table (For computer game)

I am looking for a full set of data on every element on the periodic table. (and if possible those only speculated about) When I say full I mean everything. Electron configurations, Valence electrons,...
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1answer
16k views

Determine concentration Using Beer's law

How do you determine concentration of a sample using wavelength and absorbency? Say our wavelength for a sample of Red 40 is 508.50 nm and absorbance is 0.283 when we use 6ml water and 4 ml Red 40. ...
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1answer
209 views

Changes in defects in a material due to heat treatment

Currently i am doing some research on optical properties of a oxide material and for that purpose i have done some photoluminescence study on it. Because this is an ongoing research i cant divulge ...
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1answer
6k views

Why does Ruthenium only have one electron in its 5s orbital in the neutral oxidation state?

So recently I have undertaken some research with some organometallic chemistry involved, specifically regarding that of ruthenium-aryl compounds. Trying to understand the chemistry of the central ...
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Most economical method to convert potassium oxide to potassium nitride.

I have a compound potassium oxide($\ce{K2O}$) and I am trying to convert it into potassium nitride ($\ce{K3N}$). Here are a few possible reaction methods : Split potassium oxide into the constituent ...
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1answer
296 views

Is it true that iron (Fe 0+) cannot exist when there's water around?

So somebody told me that iron metal (zero charge) cannot exist at all when $\ce{H2O}$ is present because it will all turn into rust. How is this possible? Isn't there some sort of equilibrium? Does it ...
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Why does Chloride attack CrO?

In certain applications some sorts of stainless steel (V2A, 1.4301) corrode when exposed to $\small{\ce{Cl^-}}$ in water, or at least it is strongly advised to use ...
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1answer
542 views

Finding the number of orbitals on a central atom

In $\ce{BeCl2}$ the number of orbitals on central atom, i.e. on beryllium, are 2. In $\ce{BF3}$, the number of orbitals on central atom , i.e. on boron, are 3. Similarly in $\ce{NH3}$ there are 4, ...
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1k views

Shelf-life of solutions

If I prepare the silver nitrate solution or any other solution, how can I know the shelf life of this solution? I know that it depends on the stability of the substance, but maybe there is some ...
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1answer
82 views

On nomenclature of certain compounds

I have some questions on the nomenclature- (1) In $H_2O$ we have $H$ written first and $O$ is second but when it comes to Hydroxyl group $OH$ the $O$ comes first, Why? (2)Why is Propanal called ...
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1answer
751 views

Would Chlorine or Chloramine gas show up on a VOC test?

Would Chlorine or Chloramine gas show up on a VOC test? My apartment was cleaned using chlorox and lysol, and there has been a smell that's been lingering for about 10 days. The air was tested with ...
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1answer
13k views

Which silver halide is the most soluble?

Halides are group 7 elements. They generally have a low melting and boiling point. They are highly reactive. Silver chloride and silver bromide are not soluble in water. So they will be precipitates. ...
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1answer
613 views

Oxidation state of metal in metal oxo complexes always positive?

Do all metals in metal oxo complexes (eg $\ce{Fe}$ in Ferrate, $\ce{Mo}$ in $\ce{MoO4}$,...) have positive oxidation states?
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Does freezing a solution with water always cause the water to separate and form the ice lattice?

I'm curious, I was trying to look into the affect of freezing a solution with water even when the solution is completely miscible. I came across something that detailed this regarding salt water and ...
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2answers
6k views

Why does sulfate have this structure?

Look at the structure for sulfate: Why does sulfur form so many covalent bonds. Its valency is only $-2$, it only needs two electrons, yet here it's getting $6$. The same thing happens with ...
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1answer
7k views

Difference between 18 electron rule and effective atomic number rule

Is there any difference between 18-electron rule and effective atomic number rule? Both rules are based on attainment of a noble gas configuraion as a criteria for stability of complexes. Besides, ...
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Why Add Salt to Vinegar to Clean Pennies? [duplicate]

One common cure for dirty pennies is to put them in vinegar and salt. The vinegar should react with the copper oxide on the penny in the following way: $\ce{2CH3COOH + CuO -> (CH3COO)2Cu + H2O}$ ...
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1answer
2k views

Wavelength of light

how do you calculate the wavelength of light? For chemsitry lab, we calibrated the scale reading of Hg, for example, to be 4.91 cm which is violet and the given wavelength says 436. For Hg, it says ...
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1answer
245 views

Iodine clock with moving bands

Has anyone seen a version of the iodine clock reaction where instead of the system oscillating between clear and blue it shows blue bands travelling down the vessel? I ask because someone not unknown ...
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1answer
633 views

What elements don't observe the octet rule?

Apart from hydrogen which forms a duet, which element's don't observe the octet rule?
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1answer
723 views

Geometrical Isomerism of Metal Complex

Does $\ce{Ni((en)2(Cl)2)}$ show cis-trans form ? And if No Why not ?
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418 views

Analysis of a mixture of carbonate salts

We've got a mixture of carbonate salts. It's a buffer, used in fish tanks. How might we go about identifying the components and their concentrations? I suspect it'd be hard to separate some of this. ...
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1answer
134 views

Transition Metals' Charges

I came across a compound $\ce{[FeO4]^{2-}}$ but $\ce{Fe}$ has +6 charge according to my calculations. How this is possible ? Or it is possible but my periodic table is kind of non-detailed one. (On ...
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2answers
299 views

What is a chemical element?

I would like to know what is the difference between a chemical element and a type of atom? Can anyone give the definition, please!
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1answer
278 views

Tetrahedron is minimum energy conformation for atom with 4 electron domains in VSEPR theory

Background A student asked me to prove that the regular tetrahedron is the minimum energy geometry available to describe the locations of the electron domains in three dimensions – the prediction of ...
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1answer
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Which d-orbital configurations form an octahedral complex?

With reference to crystal field splitting in octahedral complexes, my textbook shows the following table of distribution of $d$-orbital electrons in octahedral complexes, based on the energy ...
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2answers
605 views

What are the main axis of research in Chemistry? [closed]

I would like to know what are the main problems currently studied in Chemistry. For some reason, it seems that there is far less vulgarisation in chemistry than the other fields, and it's hard to ...
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1answer
139 views

Sulfuric acid recovery

I know sulfuric acid is an important catalyzer and is used in various processes. My question is, how do I recover the remaining sulfuric acid? It will be impure, and I don't know how to do the "...
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1answer
3k views

What does the eta notation mean in the naming of a transition metal complex?

I am reading a paper (Gutel et al., J. Mater. Chem. 2007, 17, 3290-3292) and I have come across the following reaction: In organic solvents, the decomposition under mild conditions of ($\eta^4$-1,...