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.
-1
votes
1answer
28 views
Nickel-63 and surge protector / voltage regulator
I've read that nickel-63 is used in surge protectors and voltage regulators.
What is it about nickel-63 that makes it particularly suitable for those applications?
-2
votes
2answers
67 views
What is reduced and oxidized when potassium bromate reacts to oxygen and postassium bromide?
I'm trying to help lead my daughter to a solution and my high school chemistry is almost 30 years ago.
For the following reaction, indicate the species being oxidezed and
reduced and show the ...
1
vote
0answers
27 views
Why does Cu not react with dilute H2SO4? [duplicate]
$\ce{Cu + (dil) H2SO4 -> No Reaction}$
but
$\ce{Cu + (conc) H2SO4 -> CuSO4 + SO2 + H2O}$
What is the difference between the dilute and concentrated acid that one reacts but the other doesn't?...
-1
votes
0answers
15 views
Chemical reaction of potassium dichromate in basic and neutral medium?
I know how dichromate [$\ce{(Cr_2O_7)^2-}$] reacts in acidic medium but I'm wondering how will it react in basic and neutral medium. When I searched for it, it was told that it doesn't react in basic ...
2
votes
1answer
36 views
Can I expect 18O-hydroxide when adding slight amount of NaOH-16O to 18O-water?
In adding $\ce{^{16}O}$-sodium hydroxide to $\ce{^{18}O}$-water to get a $0.25\pu M$ solution, is the hydroxide in form of $\ce{^{16}O}$-hydroxide or $\ce{^{18}O}$-hydroxide?
is there an oxygen ...
-2
votes
0answers
21 views
Allene doest have nodal plane as molecular plane [on hold]
Why in allene , nodal plane doesn't lie in molecular plane ?As we know that allene is a non planar molecule
-2
votes
0answers
19 views
What should be hybridization in c2 molecule? [duplicate]
According to VBT it has quadranil bonds and so sp³
But MOT saying different.. according to MOT two bonds are there and both are π bond..so according to MOT no hybridization should there only ...
-1
votes
0answers
18 views
Why ordinary hydrogen can reduce acidified kmno4??but in presence of zinc it reduces [closed]
ordinary hydrogen (h2) can't reduce acidified kmno4..
But in presence of zinc it can...
What is working of zink here???
It should be prevent of h2 layer on it's surfaces??
-1
votes
0answers
12 views
Will household bleach (NaClO aq. solution) react with gypsum CaSO4(aq) or portland cement (calcium silicates CaO·SiO2)?
I'm wondering whether dunking a porous cement or gypsum (plaster) object in bleach for cleaning would unduly affect the primary components of either. For cement items, to make it tractable I'm only ...
2
votes
0answers
25 views
Why is bis(1,2,2,6,6-Pentamethyl-4-Piperidinyl) Sebacate used as a “bottom coat” for a superhydrophobic coating?
According to this MSDS sheet, a compound named bis(1,2,2,6,6-Pentamethyl-4-Piperidinyl) Sebacate is used in the "bottom coat" layer before a "top coat" of superhydrophobic NeverWet coating is applied.
...
0
votes
0answers
21 views
Liquid smoke when applied [closed]
I recently watched this video where a street healer applies some form of liquid on the customers back he smokes like being cooked. However the guy reports no burning sensation.
How can this be ...
-1
votes
0answers
14 views
If the resonance energy is '0' in Pauling's scale of electronegativity, [closed]
If the resonance energy is '0' in Pauling's scale of electronegativity,then what can be said about the electronegativites of the 2 species?enter link description here
-1
votes
0answers
33 views
Fe(acac)3 preparation problem [closed]
During $\ce{Fe(AcAc)3}$ preparation when we try to precipitate the $\ce{Fe(OH)3}$ and then undergo suction by washing with water to remove excess chloride, $\ce{Fe(OH)3}$ gets dissolved in water! Why?
-1
votes
1answer
44 views
Molecular Geometry [duplicate]
Why is it that for a molecule with trigonal bipyramidal geometry, the lone pair is located in the equatorial region whereas for a molecular with an octahedral geometry, the lone pair is located in the ...
-2
votes
1answer
55 views
Why chlorine doesn't show pπ-dπ bonding but fluorine shows it? [closed]
I can't understand what is backbonding and how it affects bond angle ?? According to electronegativity concept, bond angle of $\ce{PF3}$ should be less than that of $\ce{PCl3}$ but it is not. Bond ...
1
vote
1answer
20 views
Heat generation in exothermic reactions [duplicate]
Im thinking specifically of N2 + 3 H2 ⇌ 2 NH3. Its an exothermic reaction, therefore heat is generated. Im trying to understand how Chateliers principle interacts with this reaction. I understand that ...
-1
votes
0answers
20 views
Why is aluminium has an unexpectedly low melting point?
Al has a similar melting point with Mg, but Al has 1 more electrons than Mg, shouldn't the metallic bond be stronger?
2
votes
0answers
35 views
Molecular orbital diagram for terminal metal-oxo complex with dative bonds
I am interested in terminal metal-oxo complexes and their electronic structure, specifically those with coordination numbers of 6, including the oxo ligand.
I know that Fe(IV)-oxo complexes tend to ...
1
vote
0answers
33 views
Why is antimony pentafluoride a stronger Lewis acid than phosphorus pentafluoride or arsenic pentafluoride?
How can these relative reactivities as a Lewis acids be rationalized:
$$\ce{SbF5 > AsF5 > PF5}$$
One simple argument could be the size of the $\ce{Sb}$-center: Because it is bigger than for ...
-3
votes
0answers
35 views
Osmium is the densest element due to relativistic effects. Why not another metal affected by relativistic effects (Such as gold)? [duplicate]
All in the title. Thought of with the question after viewing links like:
Why is gold golden?
Why does mercury have low melting and boiling points?
0
votes
0answers
15 views
Reference website or book [duplicate]
Guys I need a website or book reference that can help me to master inorganic chemistry I have a book named OP Tandon but it doesn't make me to understand inorganic chemistry so well.the book or ...
4
votes
0answers
55 views
Comparing Acidic Strength of H3PO4 and H3AsO4
The $pKa$ values for H3AsO4 and H3PO4 are $2.30$ and $2.12$ which indicate that H3PO4 is a stronger acid compared to H3AsO4. I looked up their electronegativity values to find that they are almost the ...
1
vote
1answer
837 views
Is there a compound that contains water as a subcomponent? [closed]
Is there a molecule that contains water chemically bonded to another molecule/element? Could someone provide an example or two?
1
vote
0answers
21 views
Order of lewis acidity for BBr3, BCl3, BMe3, BH3, BPh3?
In case of $\ce{BCl_3}$ vs $\ce{BH3}$, which one is the controlling factor?
1) Is it p-pi p-pi interaction in $\ce{BCl_3}$ that makes it weaker than $\ce{BH3}$?
2) Or is it the -I effect of $\ce{Cl}...
-1
votes
0answers
45 views
Dipole moment comparison
Compare the dipole moment of the following:
o-nitrophenol
o-dichlorobenzene
o-xylene
According to me, o-dichlorobenzene should have the highest dipole moment since the angle will be ...
-1
votes
1answer
43 views
Bond dissociation energy order for C-C,N-N,O-O & F-F single bond
I couldn't understand the trend of bond dissociation energy of various single bonds. Why C-C>N-N>F-F>O-O.
I had mugged up the trend the now, and according to me BDE should continuously increasing ...
0
votes
1answer
35 views
How can I prevent the effervescence of a solvent during evaporation?
How can I prevent the effervescence of a solvent like petroleum ether when I evaporate it on a water path?
0
votes
0answers
33 views
Is there any difference between negative electron gain enthalpy and electron affinity?
According to electron affinity,it is the amount of energy "released" during the addition of an electron in the valence shell of an isolated gaseous atom, and its sign convention is opposite to that of ...
0
votes
1answer
111 views
Do milk and orange juice contain H2O molecules?
I'm asking as there is this woman who claims she's severely allergic to (you guessed it) water (H2O molecules). She says just a drop of water in her mouth sends her into anaphylactic shock and only ...
7
votes
1answer
87 views
Non-conventional polymers
IUPAC defines a monomer as,
A molecule which can undergo polymerisation thereby contributing constitutional units to the essential structure of a macromolecule.
Bearing this in mind, I thought ...
7
votes
1answer
489 views
How long does it take for nitric oxide to turn into dinitrogen and dioxygen?
I'm new to chemistry and am studying nitric oxide as a combustion accelerant. Nitric oxide is said to be a free radical.
People say that nitric oxide, by itself, is pretty stable. But I saw that $$\...
1
vote
4answers
111 views
A simple equilibrium problem
Take the following simple equilibrium:
$$\ce{CH3COOH + H2O <=> H3O+ + CH3COO-}$$
Ethanoic acid will act as a typical Brønsted-Lowry acid and donate a proton to water, forming a conjugate acid-...
3
votes
0answers
30 views
Mechanism of sodium hypochlorite and hydrochloric acid
The overall reaction for the reaction between NaClO and HCl is: $\ce{NaClO + 2HCl -> NaCl + Cl2 + H2O}$
To try and understand how this reaction occurs, I've thought of a simple mechanism for it. ...
1
vote
2answers
58 views
Specifically how dangerous is a 10g chemical sample of pure arsenic and how do you properly dispose of it?
I'm not a chemist. I'm an electrical engineering student and I recently purchased an element collection. The collection came with a 10g arsenic sample. I assumed it wasn't much of a thing because ...
-1
votes
0answers
46 views
Why do we don't observe certain molecules [duplicate]
We observe HCl in nature, why don't we observe ClH3? Cl can make multiple bonds and by Drago's rule, the lone pair will be in pure s character. So why it doesn't form.
Another one is PH5 or SH6 or IH7 ...
0
votes
0answers
20 views
Comparison of Ionic Character
I read somewhere that in d block compounds, higher the oxidation state, higher is the tendency to form covalent bonds. Which also implies that the element will form the most ionic compounds in it's ...
7
votes
0answers
44 views
Why does lithium aluminium hydride appear grey?
Commercial lithium aluminium hydride is a grey compound, which loses a lot of reactivity the darker it is. Luckily you can clean it up to get the reactive white compound and the separated grey ...
0
votes
0answers
24 views
Why Chlorine has the highest electron affinity? [duplicate]
Since electron affinity is inversely proportional to the size of the atom, then why Chlorine has the highest electron affinity in the periodic table?
1
vote
0answers
26 views
Effect of Electronegativity on Bond Angles in NH3 and NF3 [duplicate]
I am reading a book: Concise Inorganic Chemistry by J.D.Lee (Fifth Edition)
In the chapter-The Covalent Bond, the author says:
$\ce{NF3}$ and $\ce{NH3}$ both have structures based on a tetrahedron ...
1
vote
1answer
59 views
Separating specific components of a PUREX raffinate
The PUREX extraction in nuclear fuel reprocessing leaves behind a nitric acid raffinate full of (mainly) 'fission products', which are a diverse set of elements produced by fission in a nuclear ...
0
votes
0answers
13 views
EQPt pH of a Monoprotic Acid-Base Titration: Product of Molarites Over Their Sum
Context
The Henderson-Hasselbalch equation is as follows. $$pH=-\log\big(K_a\big)+\log\bigg(\frac{[A^-]}{[HA]}\bigg)$$ One may follow its derivation in order to understand how it came to be, yet ...
-1
votes
1answer
20 views
Why potassium chromate can be used as indicator in Mohr method?
Both silver chloride and silver chromate are insoluble, so why is that silver chromate is precipitated before silver chromate? Why wouldn't both red silver chromate and white silver chloride form at ...
-1
votes
1answer
22 views
Difference in bonding between water and hydroxides [duplicate]
As we know, water is a covalently bonded molecule. However, the hydroxides - such as sodium hydroxide - are ionic compounds. Both of these are similar, although the difference between both is a sodium ...
2
votes
0answers
45 views
After boiling water in an electric kettle, should I empty it?
(I'm reposting my question from Physics SE where it got closed for being off-topic, but chat tells me that it might be on topic here.)
In the office I'm working in, there's an electric kettle for ...
2
votes
1answer
29 views
What is the correct reaction of sulfur dioxide with chlorine?
I'm confused in reaction of $\ce{SO2}$ with $\ce{Cl2}$. Some source states the given reaction (1), while others state the reaction (2):
$$\begin{align}
\ce{SO2 + Cl2 &-> SOCl2 + Cl2O \tag{1}}\\...
1
vote
0answers
24 views
Reaction between Ag2O and PCC
What type of reaction might take place or what product might be produced when silver(I) oxide stays in close proximity with pyridinium chlorochromate at 70 degrees C for a very long period of time, ...
2
votes
1answer
30 views
Is there a piece of software that can help me see the (hkl) planes in a crystal lattice?
I am doing research with calcium carbonate structures.
I need a way in which I can familiarize myself with the lattice structure of calcium carbonate polymorphs, especially calcite.
I really struggle ...
1
vote
1answer
47 views
Why doesn't graphite dissolve in organic solvent?
The graphene layers are held by weak van der Waals' force, this should be comparable to the force holding solvent particles. Why doesn't graphite dissolve in organic solvent and separate into graphene ...
-2
votes
1answer
32 views
Anyone know if this kind of Polyethylene is safe to use? [closed]
I'm planning to make a weighted blanket and I've looked around the internet and most people use poly pellets or glass beads for the weight.
Glass beads is kinda hard to find in where I live, so I ...
0
votes
2answers
69 views
Obtaining calcium iodide from calcium and iodine
According to:
https://www.webelements.com/calcium/chemistry.html
Calcium reacts with iodine upon heating as follows:
$\text{Ca}_{\,(s)} + \text{I}_{2\,(g)} \to \text{CaI}_{2\,(s)}$
I am ...
