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.

Filter by
Sorted by
Tagged with
2
votes
0answers
15 views

Baking Soda and Vinegar: Are there any secondary reactions?

I want to run a Lego Pneumatic Engine on the CO2 that is produced, but before I do, I want to be sure that that's the ONLY gaseous product from a real-world reaction. Everyone seems to assume that it ...
2
votes
0answers
30 views

Which salts precipitate from a potassium/sodium chloride/sulfate solution?

This is not a homework question. I am not in any course of study. The following question arises from my personal curiosity. If 1 mole of sodium sulfate and 2 moles of potassium chloride are dissolved ...
0
votes
0answers
18 views

Can ZrO2 be made fluoride resistant?

$\ce{ZrO2}$ has great properties, biocompatibility, chemical resistance, decent scratch resistance, great thermal resistance and refraction, but it could be better. It, like glass, will slowly react ...
1
vote
0answers
27 views

Bond strength and length of HF and H2O

I know that acidity of an acid increases across a period (with electronegativity increase of the atom bonded to hydrogen) and hence $\ce{HF}$ is more acidic than $\ce{H2O}$ or $\ce{NH3}$. But the ...
1
vote
1answer
46 views

Alkali metals chemistry

Ok my understanding of the electronic structure of atoms could be wrong but this is why I don't understand:Why alkali metals are so much electropositive. Some high school professor in chemistry would ...
-2
votes
0answers
24 views

C2 molecule has two pi bonds but such a thing is not observed in O2 molecule

As per molecular orbital theory, the electronic configuration on $\ce{C2}$ molecule is:- $\ce{σ_{1s}^2 σ^*_{1s}^2 σ_{2s}^2 σ^*_{2s}^2 (π_{2p_x}^2=π_{2p_y}^2)}$ here, the last four electrons which are ...
4
votes
1answer
221 views

What do 'sigma' and 'pi' in front of ligands in the formula of a coordination compound mean?

The following coordination compound was given in the book Concise Inorganic Chemistry by J.D. Lee (Adapted by Sudarsan Guha) under the topic 'Effective Atomic Number (EAN)': $\ce{[Ti(\sigma -C5H5)2 (\...
-3
votes
0answers
48 views

Is honey a good choice for chemistry senior essay? [closed]

I am doing my senior essay on chemistry and I was interested in honey, the only thing that's scaring me is that my content is more of biology rather than chemistry, in other words, does honey involve ...
2
votes
0answers
36 views

Distinguishing between different geometries of bromochlorobis(triphenylphosphine)platinum(II) using ¹⁹⁵Pt NMR

Question The question off which I am basing my question assumes that $\ce{[PtClBr(PPh3)2]}$ can exist in either the square-planar or tetrahedral geometry. If one would use $\ce{^{195}Pt}$ NMR ...
0
votes
2answers
58 views

Is reduction of copper oxide a combustion reaction?

Is the following reaction a combustion reaction or just a single displacement? Could be both? $$\ce{H2 + CuO -> Cu + H2O}$$ A friend of mine claims it is a combustion reaction because it is ...
1
vote
1answer
38 views

Finding initial amount of ammonia using equilibrium constant and amount of nitrogen gas

Question When an amount ammonia is added at $\pu{600 K}$ in a $\pu{1 L}$ container the following reaction takes place: $$\ce{N2(g) + 3 H2(g) <=> 2 NH3(g)}$$ The equilibrium constant ...
-5
votes
0answers
34 views

Is it correct to assume that by multiplying concentration with molar mass, I can calculate the number of grams in a solution? [closed]

I was wondering, if I am given a solution of NaCl (for exmaple) and I know how much it weighs (lets say 1000 g for the sake of argument), can I calculate how much NaCl there is in that solution by ...
-3
votes
0answers
40 views

Oxygen analogue of benzene [duplicate]

Cyclic ozone is theoretically possible although it has been found in some cases, so is a six-membered oxygen ring (oxygen analogue of benzene) theoretically possible too?
2
votes
1answer
81 views

Chemical change - decomposing single element?

If I had a molecule of a single element such as atmospheric oxygen O2, and I added energy to decompose it into two separate oxygen atoms (i.e. O2 + ENERGY –– 2 O ) is this a chemical or physical ...
0
votes
2answers
93 views

Reaction between halogens and concentrated nitric acid

I have read that the reaction between $\ce{I2}$ and conc. $\ce{HNO3}$ gives $\ce{HIO3}$ and $\ce{NO2},$ but there is no mention of the other halogens' products. Do they all give halous acids and ...
-4
votes
0answers
45 views

CN-1 and CO are pi acceptor ligands how they bond with metal atom and how they differ from each other? [closed]

explanation with MOT diagram that how both CN-1 and CO form complexes with transition metals.
4
votes
1answer
147 views

Why is acetate a monodentate ligand?

Why is the acetate ion considered a monodentate ligand as opposed to a bidentate ligand considering both oxygen atoms can donate their respective lone pair of electrons?
0
votes
1answer
37 views

Reaction of hydrogen peroxide with sodium carbonate [closed]

In my book the following acid base reaction is written: $$\ce{H2O2 + Na2CO3 -> Na2O2 + H2O + CO2}$$ But I found that the $\mathrm{p}K_\mathrm{a}$ value of $\ce{H2CO3}$ is less than the one for $\...
1
vote
0answers
69 views

Why does silver stick to the glass in Tollens' test? [duplicate]

Why does it not simply form a solid powder at the bottom of the flask? Does silver also stick to the glass in other silver precipitating reactions? EDIT: My question is definitely not the same as ...
0
votes
1answer
67 views

What is the state of aggregation of iodine formed during electrolysis of molten nickel(II) iodide? [closed]

Assume the electrolysis of molten $\ce{NiI2(l)}$ (inert electrodes) in a cell. The cell with a heating element is in the room; the room is at $\pu{25 °C}$ and $\pu{101.3 kPa}.$ The half-reaction for ...
-3
votes
1answer
44 views

Why does nitrous oxide react with bases and it is still a neutral oxide? [closed]

I have studied that N2O is a neutral oxide in my textbook(recommended by the central board of secondary education INDIA(country)). on internet and in my class notes i find its balanced reaction with ...
0
votes
2answers
65 views

How to calculate mass of calcium fluoride that will dissolve in sodium fluoride solution?

The solubility product of calcium fluoride, $\ce{CaF2},$ is $\pu{1.46E-10 mol^3 dm^{-9}.}$ What mass of calcium fluoride will dissolve in $\pu{500 cm^3}$ of $\pu{0.10 mol dm^{-3}}$ sodium ...
1
vote
1answer
80 views

Does sanding the oxide layer of a magnesium sample break bonds?

We all know that if we keep a piece of magnesium metal exposed in open air, an oxide layer forms on it. This layer prevents further oxidation of the bulk metal. If we then rub it with sand paper, the ...
-1
votes
1answer
35 views

Honey moisture and increase in temperature? [closed]

I've been interested quite lately on how moisture would be affected as the temperature increases. My experiment methodology is that I will be manipulating temperatures of the honey between 20,40,60,80 ...
-4
votes
0answers
43 views

Why percent concentration in this example is equal 5.07%? [closed]

I got problem with this one: 0.6 g of sodium was added to $20cm^{3}$ of water. Calculate percent concentration of this solution. Answer: Cp is equal 5.07% Could someone tell me how it is possible? ...
-2
votes
0answers
39 views

i need to find a compound/material/fibre which is fire resistant (atleast 500 °C or or 1000 F), washable and cheap [closed]

I'm a High school student in a commerce stream, i.e. I've no relation whatsoever to chemistry (or science for that matter). I've been studying inorganic chemistry for the past 9 months as a personal ...
3
votes
1answer
62 views

Structural isomers of hexaammineiron(III) hexacyanidocobaltate(III)

Find the number of structural isomers of $\ce{[Fe(NH_3)_6][Co(CN)_6]}$ This was a question solved by my teacher as follows: The $\ce{CN}$ will show linkage isomerism while $\ce{NH_3}$ and $\ce{CN}$ ...
1
vote
1answer
51 views

Acidity order of xenon fluorides,oxides and oxofluorides [closed]

The acidity order of xenon oxides,fluorides and oxofluorides is: $\ce{XeF6 > XeO2F4 > XeO3F2 > XeO4 > XeOF4 > XeF4 > XeO2F2 > XeF3 > XeO3}$. How to justify this order? My ...
-3
votes
0answers
44 views

What is the electron configuration of VO^2+ and VO3^1-? How do you determine the valence of vanadium in VO3^1- and VO^2+ [closed]

I am getting confused about how to go along with this so can someone please explain the process to figure this out as soon as possible :( Thank you! Also I was figured out that the oxidation number of ...
1
vote
1answer
52 views

Qualitative Analysis- Distinguishing between two ions or two salts [duplicate]

I know my question is going to be quite below the level of this site but I am 1st grade in university and I can't understand anything. I am going to give an example from the book: distinguish ...
0
votes
2answers
58 views

How to identify if a material is perovskite or not?

This is more of a materials science question, but I believe many of you have referred NIST Inorganic Crystal Structure Database (ICSD) database. I am collecting a database of perovskite materials and ...
0
votes
0answers
15 views

How the attraction takes place between a hydrogen atom and the acceptor atom in a hydrogen bond

In hydrogen bonds present in water,does the hydrogen atom attracts to the lone pair of electrons present on the oxygen atom or to its partial negative charge? If former is the case are there any ...
-3
votes
2answers
43 views

How does Aluminum react with nitric acid at different concentrations? [duplicate]

I am unable to find proper information. My book just says that conc. Nitric acid renders it passive.Could anyone please give the different reactions at different concentrations
0
votes
1answer
51 views

Contradictory Properties of Mercuric Cyanide [closed]

It is said that mercuric cyanide [$\ce{Hg(CN)_2}$] is water soluble and also is a non-electrolyte. How is this possible?
4
votes
1answer
66 views

Naming of [Pt(py)4][PtCl4]

Why is $\ce{[Pt(py)4][PtCl4]}$ called tetrakis(pyridine)platinum(II) tetrachloridoplatinate(II) and not tetrapyridineplatinum(II) tetrachloridoplatinate(II)? I thought you use tetrakis for ligands ...
0
votes
1answer
42 views

Reactions of diborane, silane, methane, aluminium, boron, sodium, phosphorus trichloride, white phosphorus and iron with water at RT [closed]

How many of the following will evolve $\ce{H2}$ gas when dissolved in water under room conditions? $\ce{B2H6},$ $\ce{SiH4},$ $\ce{CH4},$ $\ce{Al},$ $\ce{B},$ $\ce{Na},$ $\ce{PCl3},$ $\ce{P(white)}...
1
vote
2answers
27 views

Exothermic dissolution

When I was learning about salts that show exothermic dissolution, I noticed that the same salts used in Daniel Cell( due to similarity of size of anion and cation) were undergoing exothermic ...
1
vote
1answer
101 views

Calculating the biological standard potential

I have an electrochemical cell with following overall reaction: $$\ce{5 Sn^4+ + 2 Mn^2+ + 8 H2O <=> 5 Sn^2+ + 2 MnO4- + 16 H+}$$ I have defined the half reactions as: $$ \begin{align} \ce{Sn^...
3
votes
0answers
19 views

Can PDMS silicone be produced with dichloromethane?

I was taking a simulated admission test for a Technology Institute (Brazilian ITA) and one of the questions asked for the production of PDMS silicone via these described steps: Reaction of $\ce{SiO2}$...
-3
votes
0answers
19 views

How to keep Cu+ in an aqueous solution? [closed]

Explain your solution please Tell me how to keep cu+ stable in an aqueous solution
5
votes
1answer
60 views

What is the naming convention for Sn and Pb in inter-metallic compounds?

How would one go about naming inter-metallic (specifically, transition post-transition) compounds containing tin and lead? It is usually easy figuring out the naming of such compounds as they follow ...
8
votes
2answers
240 views

Why can't ligands with “locked structures” undergo chelation?

The following quote is from the book Concise Inorganic Chemistry by J.D. Lee (Adapted by Sudarsan Guha), from the chapter "Coordination Compounds", page 177: ...it must be noted that $\ce{NH2NH2}$ ...
2
votes
1answer
37 views

What is the meaning of the J value in term symbols [closed]

I understand how to work out the J values of term symbols. e.g. a d1 configuration gives J values of 5/2 and 3/2. resulting in 2D 3/2 However I dont understand the meaning of it, and why it arises.
3
votes
2answers
181 views

Why is chromate stable in basic medium and dichromate stable in acidic medium?

When I was studying the equilibrium existing between chromate and dichromate ions in the solution, I came to know that Chromate ion is more stable in basic medium while dichromate ion is stable in ...
-3
votes
0answers
26 views

Electrochemistry Question [closed]

I cant find the answer this question. Please answer it.
0
votes
1answer
58 views

Has anyone actually prepared Zn(HCO3)2 absent the presence of pressurized aqueous CO2?

Under normal conditions, I am not certain, as per Atomistry on $\ce{ZnCO3}$, the following quote: The hemihydrate, $\ce{2ZnCO3.H2O}$, was obtained by precipitating the solution of a zinc salt with ...
-2
votes
0answers
61 views

How to draw isomers of [CrCl3(H2O)3]? [closed]

How do you draw isomers? I am trying to figure out how to draw $\ce{[CrCl3(H2O)3]}$ and label it, but I do not understand.
0
votes
1answer
98 views

How to find the oxidation numbers of individual ions of a transition metal with an average fractional oxidation state

In the classical example compound of $\ce{Fe3O4}$, we know that $\frac 23$ of Fe ions display +3 oxidation state and $\frac 13$ of Fe ions display +2 oxidation state fulfilling charge neutrality ...
3
votes
1answer
102 views

Is carbon–sodium bond mainly ionic or covalent?

We all know that carbon mostly forms covalent bonds (almost always) and sodium mostly forms ionic bonds (almost always). But if $\ce{NaOH}$ reacts with ethyne, then $\ce{HC#CNa}$ and $\ce{H2O}$ are ...
1
vote
2answers
67 views

How come we can't use the equivalence point equation of NV=NV in this problem?

So, the problem is you prepare to standardize a $\ce{Na2S2O3}$ solution. $\pu{32 mL}$ of $\ce{Na2S2O3}$ solution is titrated into $\pu{50 mL}$ of a $\pu{0.01 M} \ \ce{KIO3}$ solution to reach the ...

1
2 3 4 5
74