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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20 views
Oxidation number of complex compound
Consider a complex K2[Cr(CN)2(O)2(O2)(NH3)] How would you find the oxidation number?
Can't (O2) mean dioxide, Superoxide,peroxide which one should I choose ?
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1answer
22 views
What is the entropy of Cu(NO3)2?
I have searched for the entropy of copper nitrate in various tables across the internet* and all I could find was its Hf. Ullmann also didn't give an any better clue.
If it was not measured and ...
-2
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0answers
11 views
Micro Zippette Hand-Held Dispenser [on hold]
Has anyone ever used this Micro Zippette Hand-Held Dispenser? I found it on an online chemical store brumer
0
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0answers
8 views
How to precipitate Urea in a blood sample?
I am trying to use IR spectroscopy to measure total protein in blood. Urea creates a interference in that range.
I thought about precipitating urea to reduce its interference but how can i do that?
2
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0answers
29 views
Lewis acids as ligands
Usually Lewis bases as my textbook says:
According to me its not compulsory for a ligand to be a Lewis base, as $\ce{BF3}$ is a Lewis acid and can act as a ligand by accepting electrons from a ...
-2
votes
1answer
20 views
Why is ammonia removed before the yield is attained in Haber process?
Why does removing ammonia from product mixture before reaching the yield of 20% can increase the amount of NH3 produced per unit time?
-1
votes
0answers
19 views
Oxidation of Graphite with HNO3 [on hold]
It is given in my book that nitric acid oxidizes graphite to either mellitic acid (Benzene Hexacarboxylic acid) or, with additional HF, graphite oxide. Can somebody suggest a mechanism for this ...
0
votes
1answer
15 views
Help understanding the equation for Spin Energy in Zero Field
I’m working with a system that experiences spin frustration and for me this is the first time dealing with such a phenomenon. To grasp the concept, I’ve decided to go to the basics and read the ...
-1
votes
1answer
22 views
Etching of ZnS crystal by NaOCl
Can someone tell me the exact mechanism for etching $\ce{ZnS}$ with $\ce{NaOCl}$?
I believe it is due to $\ce{OCl-}$ ion, just need confirmation.
Many thanks.
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1answer
28 views
Usage of platinum in flame test
Why should we use platinum wire or loop in flame test, can we use any other material ? Why can't we use glass it something?
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0answers
22 views
How can oxygen form ozone if it's valence electrons are full?
How can $\ce{O_3}$ be created from $\ce{O_2}$ and $\ce{O}$
when according to the octet rule, each atom in $\ce{O_2}$ already have a complete valence shell from a double bond ?
Is the $\ce{O_2}$ ...
-4
votes
0answers
18 views
Charles Martin Hall of Aluminium Fame: Extremely youthful appearance? [on hold]
Not a chemistry question but I am hoping some chemist knows this trivia: many years ago I read that there was some reason why he looked to be in his 20s even when he was about 50 (although he would ...
-1
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0answers
21 views
Calculating relative abundance of isotopes
Element $\ce Z$ with an average atomic mass of $\pu{125.20amu}$, has four naturally occurring isotopes, $\ce Z_1$, has a mass of $\pu{121.45amu}, \ce Z_2$, which has half the abundance of $\ce Z_1$, ...
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0answers
9 views
In a single replacement reaction. How does one know what oxidation state of the metal would be in the product compound.
So in single replacement reaction A + BC -> B + AC how do you know what oxidation state A would be in. I know this question is pretty general but an example of this is chromium reacting with ...
-2
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0answers
11 views
how do measure Calorific value of coal by bomb calorimeter? [on hold]
i use isoperibol mode of calorimeter to find calorific value of coal sample but when i change mode to dynamic ,the result is higher than isoperibol ...why ?
and what is difference between isoperibol ...
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0answers
24 views
Rarity of metals like platinum [on hold]
Generally, if u observe, non reactive ones are pretty rare, for example consider platinum. Is there a reason for why such metals are rare ?
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1answer
17 views
Why is second(&third) ionization enthalpy of Sb less than that of Bi? [on hold]
I took a reading of all the ionization enthalpy of Group 15 elements and found that Ionization enthalpy of Bi was less than to Sb when it should be less regarding the tradition
Also if there was an ...
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votes
0answers
17 views
Why does gallium have a low melting point (29 degrees Celsius)?
Gallium has the electronic configuration of [Ar]3d(10)4s(2)4p(1). So it can share the 4p electron with another Ga atom and exist as Ga(2), and so according to my intuition (as in case of Au and Hg, Au ...
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0answers
14 views
Reaction of FeCl3 to red-hot high carbon steel in an open top container [on hold]
I know when making FeCl3 you produce Hydrogen, so my question is if someone (namely me) were to quench red-hot steel (hi~ish carbon) in FeCl3 would there be a great risk of combustion? I have seen ...
-2
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0answers
15 views
What are IsoStructural species? How to predict IsoStructural species using Hybridisation? [on hold]
I know Isostructural species are those molecules which same geometry of electronic arrangement.My question is using hybridisation theory how one can predict Isostructural species.
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0answers
23 views
Dissolving PdCl2 without dissolving PtCl2?
I am refining Platinum from a mixture of several metals. I will get to a point where the only two metals in the mixture that are soluble in aqua regia are platinum and palladium, so my plan is to ...
1
vote
2answers
21 views
Materials used in cooktop heating element, and reason for black appearance
I have been interested in the structure of heating elements/coils used in cooktops. I am referring to something such as in the following picture:
I have a cooktop at home with such elements, and at ...
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1answer
19 views
Reaction of chloride of 4th A group [duplicate]
Why CCl4 does not react with water,while SiCl4 do react,as both central atom are surrounded by 4 chlorine atom?
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votes
0answers
34 views
Which bond breaks when P4O6 melts?
P4O6 is a compound with covalent bonding between Phosphorus and Oxygen atoms. Comparing with SiO2, it has weak intermolecular forces where as SiO2 has giant covalent structure.
When melting these two ...
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0answers
12 views
write the redox half reactions. Which is the reducing agent and oxidizing agent in the reaction what do the terms mean? given.. Mg+O---> Mg+ +O2- [closed]
write the redox half reactions. Which is the reducing agent and oxidizing agent in the reaction what do the terms mean? given..
$$\ce{Mg + O -> Mg^{2+} + O^{2-}}$$
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0answers
16 views
find specific density and specific gravity [closed]
A box measuring 3.7 m x 3.2 m x 1.4 m is filled to the top with a broken substance, giving it a total weight of 45,842 kg. The empty box weight is 545 kg. If 110 imperial gallons of water can be ...
-4
votes
0answers
26 views
How much water does it take to absorb chlorine gas? [on hold]
I am going to make a recaction that will result in around $\pu{480g }\ce{NaOH}$ and $\pu{420g}$ of $\ce{Cl2}$.
$\ce{2 NaCl + 2 H2O -> 2 NaOH + Cl2 + H2}$
The chlorine gas is then going to be ...
-1
votes
0answers
17 views
Hybridization of coordination compounds [closed]
What is the hybridization of [Ni(NH3)2Cl2] ? Is it square planar or tetrahedral ? Also what is the hybridization of [Pt(NH3)2Cl2] ?
-2
votes
0answers
35 views
How is Be(OH)4 Formed?
I recently did a test paper and the question stated that Be(OH)2 is amphoteric and so I was asked to write equations showing it both acting as an acid and a base.
Acid answer: $\quad\ce{Be(OH)2 + 2H+...
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votes
0answers
15 views
Conformations in complex compounds with polydentate chelating ligands?
Does conformational Isomerism also occur in complex compounds where chelation occurs like in organic chemistry and if it happens is the stability order also similar like in Anti Staggered , skew , ...
-1
votes
0answers
24 views
How can you differentiate between Copper Sulfate (CuSo4) and Copper Nitrate [Cu(NO3)2]? [closed]
How can you differentiate between them because they're both blue powders soluble in water?
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1answer
30 views
Preparation of Heavy water [closed]
In electrolysis of normal water, why does adding some NaOH and electrolysing the water leave D2O behind ?
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0answers
25 views
Reaction of vaskas compound with oxygen [closed]
Does vaska’s compound on reaction with oxygen, Ir is oxidised from +1 to +3 ??
2.Also does the coordination number of Ir becomes
6 or 5 , since the Oxygen is bonding to central
atom in side- on ...
1
vote
1answer
25 views
Stabilization of hydrogen peroxide [on hold]
It was given in a chemistry book that things like orthophosporic acid, acetanilide and sodium stannate stabilize hydrogen peroxide, while carbon, $\ce{MnO2}$ and $\ce{Pt}$ help decomposing it.
Why is ...
-1
votes
0answers
12 views
Type of transition metal complex
For question given in chemistry competitive exam preparation book, the answer is read as $\ce{[Co(H2O)6]^2+, [RhF6]^3-, \text{and} [IrF6]^3-}$ are all inner d- complexes. But in my best of the ...
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0answers
20 views
Ions concentration of mixed salts
I’m an amateur in chemistry, so I apologize if this is a too basic question. Background: I want to understand a study of sugarcane growth into solutions containing different nutrients.
I’m creating a ...
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0answers
29 views
Inorganic IUPAC for Compounds with bridged ligands?
Can we use bis(tetraammine) instead of octaammine is the 2nd example ?
As in the 1st example they used bis(pentaammine) and also in the 3 one the used bis(carbonylcyclopentadienyliron)
-1
votes
1answer
34 views
Stability order of Cr2+ ,Mn2+ , Fe2+ ,Co2+ [closed]
Stability order is given as $\ce{Mn^2+ > Fe^2+ > Cr^2+> Co^2+}$
Of course I know that $\ce{Mn^2+}$ is the most stable form as it has half filled degenerate orbitals. But my query is ...
1
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0answers
38 views
Comparing thermal stabilities of MgCl2 and Bacl2
I read that to compare thermal stabilities of ionic solids:
if the solid has a monoatomic anion, we compare thermal stability on the basis of lattice energy which is inversely proprotional to size.
...
0
votes
1answer
38 views
What is a “tri-salt polymer” as described by this product that eliminates and prevents mold?
This answer mentions an anti-mold product called Concrobium Mold Control. The FAQ linked on their website says:
Q: I see Sodium Carbonate listed on the label. Is Concrobium Mold Control just Sodium ...
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votes
1answer
27 views
Does hydrogen peroxide in basic medium only give oxygen gas on oxidation?
Does hydrogen peroxide on oxidation gives oxygen gas only in basic medium?
I thought that was true but I read about these reaction of $\ce{H2O2}$ in acidic medium:
$$\ce{2MnO4- + 6H+ + 5H2O2 -> ...
1
vote
1answer
48 views
Chloroantimonic v/s fluoriantimonic
Does chloroantimonic acid exists like . If not , than why , what we get when we mix hydrochloric acid and antimonypentachloride and can we predict its acidic strength if it would ever be synthesized. ...
-2
votes
0answers
25 views
Hybridisation in (CrO4)-2? [closed]
In one of the questions I was solving related to hybridization I found the answer for hybridization of(CrO4)-2 to be d^3s . How is this hybridization achieved can anyone please explain to me along ...
2
votes
1answer
66 views
How is silver chloride more soluble in brine than water?
I heard that:
Silver chloride is more soluble in very concentrated NaCl solution (brine) than in pure water.
Is it true? I mean won't the common ion effect operate? Or may be this is due to some ...
-1
votes
0answers
18 views
How to check whether a acid is *ortho* or *meta* [duplicate]
I have done lot of questions on basic inorganic nomenclature.
I have done lot of problems of naming ions, compounds etc.
But my mind goes blank when I see aforesaid problem.
Please help me out!!!
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0answers
22 views
Solid State - correct formula for the compound
I am a student of XII std and unable to get the answer for this question:
A forms a CCP (cubic close packing). A atoms are in the corners, B atoms are at the alternate face what is the formula of the ...
-1
votes
1answer
19 views
What is (if there is) the reaction between manganese chloride and oxygen when dry?
I had a chemistry lab and I did a error. I was supposed to make some $\ce{MnCl2}$ and then used fire to dry it but then some of it turned black, and I am supposed to quantify my error. So I am ...
11
votes
2answers
3k views
What is the strongest oxidising agent? [closed]
I searched for the strongest oxidising agent and I found different results: $\ce{ClF3}$, $\ce{HArF}$, $\ce{F2}$ were among them.
Many said $\ce{ClF3}$ is the most powerful as it oxidises everything, ...
0
votes
0answers
60 views
Acid HClF6 and HIF6
I was wondering about $\ce{HClO4}$ which is a very strong acid . I thought it can be made stronger by replacing $\ce O$ with $\ce F$ to make $\ce{HClF6}$ but didn't find its existence . I thought that ...
-2
votes
0answers
36 views
How to derive oxidation states of coordination compounds containing complex cationic and anionic ions?
I don't understand the nomenclature of coordination compound, which contain both a complex cation and anion.
For example, in diammine silver (I) dicyanido argentate (I), $\ce{[Ag(NH3)2][Ag(CN)2]}$, ...
