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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Examples of Lewis base nature of sulfur dioxide

I have read that sulfur dioxide acts as both Lewis base (due to presence of lone pair over $\ce{S}$ and/or $\ce{O})$ and Lewis acid (due to presence of vacant d orbital). I found many examples of $\ce{...
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Finding the concentration of each ion in saturated solution of lead(II) hydroxide

Question If the solubility of $\ce{Pb(OH)2}$ is $\pu{0.155 g/L},$ then the concentration of each ion in a saturated solution of $\ce{Pb(OH)2}$ is A. $[\ce{Pb^2+}] = \pu{0.155 g/L}$ and $[\ce{...
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Create Sodium Hydroxide from Sodium Silicate

During a reaction I use sodium hydroxide and create sodium silicate as a by-product. I am curious if there is a way to recycle that sodium silicate into sodium hydroxide? I am not a chemist, just ...
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electron-muon bonding

Is bonding specifically for and between electrons and why cant 2 atoms share different particles of same charge , spin and different mass? Why there aren't muon - electron bonds or whatever? Why is ...
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which 2 compounds can illustrate the differences between carbon and silicon? [closed]

I was given a question, that asks me to provide compounds of carbon and silicon that show the differences in the chemistry of the 2 compounds. But they are both group 14 elements.
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Copper (II) chloride reduction with Hydrogen gas

I've been looking into making pure copper (I) chloride, but using ascorbic acid is relatively expensive for me. I'd also like to avoid having water in any part of the synthesis to minimize the ...
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Petroleum Benzine or Normal-Hexane for removing a silicone based adhesive?

I’m trying to remove the glass panel wich is glued to the polarizer of an LCD display (an Apple iMac display with broken glass but working LCD wich I would like to repurpose). It seems to be fixed ...
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Acidity comparison on R-PO3H2

Question Compare the acidity $(K_\mathrm{a1})$ of the following three acids: $\ce{H3PO4},$ $\ce{Ph-PO(OH)2}$ and $\ce{H3C-PO(OH)2}.$ Thoughts These three acids are of type $\ce{R-PO3H2},$ where ...
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How dangerous is Sodium Chlorate(NaClO3)? [closed]

Can enough of it absorb through my skin to be dangerous for my health, or will it just irritate my skin a bit and that's all? I am not trying to touch it, but I do want to know what would happen if I ...
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Why does H₄CO₄ exist as a stable compound? [closed]

Why doesn't $\ce{H4CO4}$ exist as a relatively stable compound ?
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Why is NOₓ conversion low at fuel rich conditions in a three-way catalytic converter?

$$ \begin{align} &\text{Oxidation:} &\quad \ce{2 CO + O2 &-> 2 CO2}\\ & & \ce{``HC" + O2 &-> CO2 + H2O}\\ & & & \\ &\text{Reduction:} &\quad \ce{2 CO +...
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Have IH₃ and IH₅ already been synthesized?

I've seen a paper by Sikalov [1] that says that $\ce{IH3}$ and $\ce{IH5}$ should be observable. Has anyone actually tried to synthesize such molecules? References Sikalov, A. A. Hypervalent Halogen ...
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Difference between neutral and amphoteric oxides

What is actual difference between neutral oxides (e.g. $\ce{NO},$ $\ce{N2O},$ $\ce{CO})$ and amphoteric oxides (e.g. $\ce{Al2O3})?$ I got a hint of it from the comment of Ivan Neretin.
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How do I separate glucose from a mixture of citric acid, tartaric acid and water? [closed]

How would I separate the glucose from that solution, mentioned above?
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Why lithium looses electron more easily than sodium according to electrode potential values?

As lithium is smaller in size than that of sodium, then sodium should loose electron more easily than lithium
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Calculating pH of rain water

The concentration of $\ce{SO2}$ in the atmosphere over a city on a certain day is $\pu{10 ppm}$. Given that solubility of $\ce{SO2}$ in water is $\pu{1.3653 mol L-1}$ and $\mathrm{p}K_\mathrm{a}$ of $\...
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When MgCl₂ · nH₂O is heated to the boiling point of H₂O

When magnesium chloride hydrate is heated, does $\ce{Mg(OH)2}$ form or what? I'm curious, because Wikipedia says that it decomposes to release $\ce{HCl}$ gas.
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Is there a way to dehydrate hydrated aluminum chloride for use as a Lewis acid?

I heard that one can use thionyl chloride to dehydrate it, but I'm not really sure if it would be available for amateur chemists since it's listed on the UN Convention for (the Elimination of) ...
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Pyrolysis of calcium chloride dihydrate

Does the pyrolysis of $\ce{CaCl2 · 2 H2O}$ give $\ce{CaCl2 + 2 H2O}$ or $\ce{Ca(OH)2 + 2 HCl}?$
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Anhydrous Chromium Alum production

I recently started a small project of making home-made chromium alum crystals, as can be found on many sites, videos and recipes all around the internet. I tried calculating the amount of salt I ...
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Why cobalt reacts favorably with nitrogen?

I used also Iron, Nickel, Zinc, Copper. However, Cobalts gives the easiest and straight forward yield of nitrides. (XPS and SAED verified). It is so easy to get cobalt nitride that I don't even have ...
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Calculating equilibrium concentrations of silver and halide ions

$\pu{500 ml}$ of $\pu{0.01 M}$ $\ce{AgNO3}$ is mixed with $\pu{500 ml}$ of solution containing $\pu{0.1 M}$ $\ce{NaCl}$ and $\pu{0.1 M}$ $\ce{NaBr}$. $K_\mathrm{sp}$ of $\ce{AgCl}$ is $10^{-10}$ and $...
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Greater ligand stabilization of the lower oxidation state increasing redox potential

According to Atkins, P.W., De Paula, J. and Keeler, J., 2006, Atkins' Physical Chemistry, $$ \begin{align} \ce{[Fe(CN)6]^3- + e- &<=> [Fe(CN)6]^4-} &\quad E^\circ &= \pu{+0.36 V} \...
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What reaction could rubidium undergo in a vacuumed chamber with Macor ceramic and glass?

In the center of the chamber on the photo below you can see the hexagonally-shaped Macor glass-ceramic consisting of Silicon dioxide $\ce{SiO2}~46\%$ Magnesium dioxide $\ce{MgO}~17\%$ Aluminum ...
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I wish to find out what are the reactants in the a solution [closed]

So I have an aqueous solution with four out of the eight following ions without the Ksp of any of them. How would I determine which is more likely to precipitate and in which order with the following ...
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Why does manganese have lower enthalpy of atomisation and melting point than chromium? [duplicate]

We know that due to stable half filled 3d5 config of Mn(3d5 4s2) it deviates from the general trend of melting points. However, Cr(3d5 4s1) also has stable half filled d-orbitals yet it has higher ...
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Hydrolysis of sodium carbonate [closed]

This is the equation given by my textbook for hydrolysis of sodium carbonate: $$\ce{Na2CO3 + 2 H2O -> H2CO3 + 2 Na+ + 2 OH-}$$ and it mentions that sodium ion $(\ce{Na+})$ does not tend to ...
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Safety requirements for the laboratory work with salts of heavy metals [closed]

So I am going to start a set of experiments involving the following metal nitrates: Cobalt nitrate hexahydrate Barium nitrate Cerium nitrate hexahydrate Ammonium nitrate nonahydrate Iron(II) nitrate ...
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What is the role of hydration enthalpy in oxidation?

My textbook says that the greater oxidizing behavior of fluorine than chlorine can be attributed to the high hydration enthalpy of F ions and the low dissociation enthalpy of F-F bond. While the ...
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What is the meaning of an oxide being 'Higher' or 'Lower'? [closed]

To put it simply, many books use the term 'Higher Oxide' or 'Lower Oxide'. What does this mean?
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Is the following reaction possible?

I know that solutions in water of calcium/aluminim (resp.) chloride have [Ca(H2O)6]2+/[Al(H2O)6]2+ in them. I've heard that calcium/aluminim chloride hydrates decompose to the corresponding hydroxide ...
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Dehydration of calcium chloride hydrate

I know this might seem stupid, but I want to know the exact way of dehydrating calcium chloride hydrate, because Wikipedia says that "the hydrates of calcium chloride decompose w/o melting" and the ...
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Method to find out the amount of solvent replaced by another solvent

So I am performing a relatively simple coprecipitation experiment to synthesize ceramics. All my precursors are in aqueous solutions. But due to the high surface tension of water, drying the water is ...
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Why does CO⁺ have bond order 3.5 instead of 2.5? [duplicate]

Why does $\ce{CO+}$ have bond order $3.5$ instead of $2.5?$ Please explain to me.
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Starch Amylase Experiment using Iodine

The starch and iodide test is to detect amylose, a polysaccharide. We add an iodide solution to a sample and observe a color change with the starch; it turns dark blue. I am doing a bio/chem ...
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order of acidity in in H3PO4, H3PO3, H3PO2 [duplicate]

order of acidity in Hypo acids $H_{3}PO_{4},H_{3}PO_{3},H_{3}PO_{2}$ How do i solve it Help me please
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Finding percent weight

I have a mixture of $\mathrm{NO_{2(g)}}$ and $\mathrm{N_2O_{4(g)}}$ at $63\,\mathrm{C^°}$ and $750\,\mathrm{mmHg}$. I need to find the weight percent of the first compound. Density $d=1.98\,g/L$. I ...
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Is the pyrolysis of tetrachloroaluminate(1−) anion possible?

Wikipedia says that lithium tetrafluoroborate decomposes to lithium fluoride and boron trifluoride when heated. Does the same hold for sodium tetrachloroaluminate (all anhydrous) as well?
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Ligand substitution reaction in coordination compounds

I know that the following substitution reaction can take place: $$\ce{[Cu(H2O)4]^2+ (aq) + 4NH3 (aq) -> [Cu(NH3)4]^2+ (aq) + 4H2O (l)}$$ This is because ammonia is a stronger ligand than water. ...
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Does magnesium carbonate exist? what makes magnesium bicarbonate different from calcium bicarbonate [closed]

In my book, I found the following reactions: $\ce{Ca(HCO3)2 ->[\Delta] CaCO3 + … }$ $\ce{Mg(HCO3)2 ->[\Delta] Mg(OH)2 +...}$ What makes these two reactants different? Why is one forming ...
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What is the purpose of atomisation in atomic absorption spectroscopy? [closed]

What is the purpose of the atomisation process in atomic absorption spectroscopy? I understand that solution is evaporated by the flame and then the molecules decompose into atoms. But why must the ...
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Why does cobalt(II) chloride (CoCl2) crystal melts?

I made $\ce{CoCl2}$ crystals by making a concentrated solution. After the crystals formed I took them out of the solution for drying. After a time I noticed that they were still wet so I dried off ...
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simultaneous solubility equilibria

I have barium nitrate, ferric nitrate nonahydrate, and aluminium nitrate nonahydrate reacting with ammonium carbonate. It's a simple coprecipitation reaction. Now according to my understanding, there ...
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Selectivity of metal nitrates towards ammonium bicarbonate

I am performing coprecipitation reaction, and in the precipitating step, I have a bunch of metal nitrates(ferric nitrate, aluminium nitrate and barium nitrate)in a solution reacting with ammonium ...
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Reaction of hot sodium bicarbonate solution on aluminium foil

I was really curious about finding out how sodium bicarbonate reacts with aluminium metal. For this, I prepared a sodium bicarbonate solution and added a piece of aluminium foil to it. I scraped the ...
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Why is Aluminium oxide amphoteric?

I was reading my book, in which it mentioned that aluminium and gallium oxides are amphoteric and and Indium and thalium oxide are basic in their properties. But no explanation was given. Edit: My ...
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Reason for usage of Metal chlorides and Platinum or Nichrome wires in flame test

I'm studying about the s-block elements in my course of Inorganic Chemistry and I happened to come across the following text. Electrons may be quite readily excited to a higher energy level, for ...
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What is the product of the reaction between hydrogen peroxide and ammonium thiocyanate?

Title. I saw a video showing 30% hydrogen peroxide being dripped onto ammonium thiocyanate. https://www.youtube.com/watch?v=fQju2e8CMPY I am wondering what the product of that reaction is. The people ...
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Is there an encyclopedia which lists basic known inorganic chemical reactions? [duplicate]

Maybe some kind of web resource, with specified conditions of a reaction?
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Substitute Sr with Mg in MgO

Could someone please help me with the following question. Due to the perspective of voids in the MgO structure, what is the maximal amount of Sr that can substitute with Mg. And why is it unlikely ...