Nuclear Chemist
  • Member for 3 years, 9 months
  • Last seen more than a week ago
  • Europe
Precautions and tips for Qualitative Inorganic Analysis of Coins
0 votes

I am thinking of three methods, you could put the coin in a scanning electron microscope if it has a X-ray spectrometer attached and then get a spectrum of the X-rays which come off the coin. If you ...

View answer
Inorganic question regarding Phosphorus-32
1 votes

Isoelectronic means it has the same electronic structure and number of electrons, for example a negatively charged hydrogen ion (hydride) is isoelectronic with a helium atom. Now phosphorus forms a ...

View answer
Why does the reduction of naphthalene with nickel/hydrogen lead to trans-decalin?
0 votes

I think to understand heterogenious hydrogenation you need to understand homogenious hydrogenation of metals by Wilkinson's cataylst and hydroformylation of alkenes by a mixture of hydrogen and carbon ...

View answer
Why do CCl4 and CH4 have the same bond angle?
1 votes

Welcome to Stack exchange chemistry. Consider for a moment what is known as the isolobal concept, there are a series of atoms and groups which all present the same types of orbitals (or at least close ...

View answer
Can Mg/ether reduce carbonyl groups?
-1 votes

I think that the formation of the Grignard will be inhibited. The formation of a Grignard is an autocatayltic reaction. It is well known that one of the best ways to get a Grignard synthesis going is ...

View answer
Nitrocellulose (flash paper) synthesis without Sulfuric Acid?
3 votes

I do not think it will be possible to form nitrate esters of cellulose without sulfuric acid present, I am sure that you need the strong bronsted acid to make the reaction work. But I think that there ...

View answer
How to precipitate Chloroplatinic acid?
2 votes

I suspect that you could be forming an aqueous solution of $\ce{(NH4)2PtCl6}$. I would like to make an observation as a person who has done platinum group metal chemistry, the anionic chloro ...

View answer
Geometry of Ni(acac)2
Accepted answer
8 votes

It is a good question, it is a gemstone hiding in the mud. I have searched the Cambridge database, all the bis-acetylacetonatonickel complexes which have four coordinate nickel centres are square ...

View answer
Major product for aldol condensation between acetophenone and acetaldehyde
1 votes

I would expect the aldehyde to be the major electrophile in this reaction. The reason is that the steric demands for a nuelophile coming close to the carbonyl carbon are lower than for the same ...

View answer
Why is iron pentacarbonyl known, but iron(III) hexacarbonyl is not?
4 votes

There are several things which are needed to be known to be able to deal with this question. Firstly there is the 18 Valence Electron (18VE) rule (description at libretexts.org). The iron ...

View answer
How can an Organic chemist know the chemical formula of a natural product she isolated from an organism?
4 votes

Working out the structure of a compound (organic, organometallic or organomain group) is not a simple matter. It is something which can be very intellectually taxing. I have done it many times in my ...

View answer
Determining the oxidation state of a bridging platinum complex
2 votes

There is a very similar molecule in the literature this has aryls instead of methyls. (MEYTEP) M.A.C.Lacabra, A.J.Canty, M.Lutz, J.Patel, A.L.Spek, Huailin Sun, G.van Koten, Inorg.Chim.Acta, 2002, ...

View answer
Fluorine isotopes and isomers
0 votes

The nucleus of an atom contains a mass of quarks which combine to form a larger particle which is the nucleus. It is possible to assemble these quarks in different ways, for example sometimes the ...

View answer
Are risks (hexavalent chromium) during Chrome plating temporary, or remain with the product?
5 votes

If we assume that the plating process was done correctly onto tin then according to a XPS study on a chromate conversion layer on tin plate (J. Sun et. al., SURFACE AND INTERFACE ANALYSIS, 2009, ...

View answer
What is the most stable conformation (Newman Projection) of CF3CH3?
0 votes

For 1,1,1-trifluoroethane the two extremes are the staggered and the eclipsed conformations. I have done some molecular mechanics calculations which indicate that the staggered conformation has an ...

View answer
what is superimposability of mirror images of this molecule?
Accepted answer
2 votes

It depends on where you put the mirror, in the case of a a horizontal mirror is required, or rotate the molecules 90 degrees before using a mirror to the left. For d it is best if you rotate the C-C ...

View answer
What kind of drugs can be absorbed through skin?
3 votes

The skin is able to prevent some things from passing in and out of a person but it is not a perfect barrier. The lipophilic things like nicotine, hydrogen flouride, VX, hexane and iodine vapour can ...

View answer
Why Benzene is a good solvent even while it is not polar
Accepted answer
8 votes

Benzene is a good solvent for many organic compounds, the term good solvent to me does not mean a nice solvent with a good all round profile. To me the perfect solvent would be non toxic, not ...

View answer
Fluorine and fossils
Accepted answer
2 votes

I checked the literature, it has been reported that fluorine ions replace hydroxyl ions in osseous tissue (bone) so by making a measurement of the flourine content of bone it is possible to estimate ...

View answer
Can we predict with any reliability whether a chemical is carcinogenic in people?
1 votes

One of the great problems is that there is no single mechanism by which a chemical carcinogen causes the damage which leads to cancer. There are a range of different mechanisms, I will mention some of ...

View answer
Separating specific components of a PUREX raffinate
1 votes

You have chosen a difficult challenge, a word of advice unless you are working in a nuclear site I would advise you in the strongest terms possible not to attempt a separation of radioactive things in ...

View answer
What's the monomer in a polycarbonate?
4 votes

Like Dr J said there is no single polycarbonate polymer, the most common one is formed from phosgene (or another carbon dioxide reagent) and bisphenol A. The repeating unit is $\ce{C6H4C(CH3)2C6H4-O-C(...

View answer
Formation of acid chlorides
Accepted answer
2 votes

Acid chlorides are normally formed from carboxylic acids by the action of reagents such as thionyl chloride (SOCl2). This is not a SN2 reaction well not at carbon. Normally a carboxylic oxygen ...

View answer
Thermal Conductivity of Calcium Carbonate?
1 votes

You have not measured thermal conductivity, you measured a rate of reaction under a rather poorly defined set of conditions. If I was going to deal with this problem then I would first want to do ...

View answer
Separating boric acid from sodium chloride
0 votes

You could consider using ion exchange resin, there are resins intended for use in the nuclear industry for the removal of boron (borate / boric acid) from water. A common method in light water ...

View answer
How much muriatic acid to dissolve cinder block?
1 votes

Keep in mind that a cinder block is likely to contain silicates, these will not dissolve well in hydrochloric acid. The silicates will either not react or they will form silica. If you want to ...

View answer
Why does chlorination of toluene stop at two chlorine atoms?
6 votes

It will not stop at the dichloro compound, it is a free radical halogenation reaction. The benzyl radical is very stable so it is easy for a chlorine atom to abstract a hydrogen from the methyl grup ...

View answer
What is the proof of complete ionic dissociation in water?
Accepted answer
5 votes

One method is by making electrical conductivity measurements on aqueous solutions of salts. If we take four strong electrolytes: Sodium chloride Potassium chloride Sodium perchlorate Potassium ...

View answer
Does ICP-OES detect molecules in suspension?
Accepted answer
3 votes

It will depend on the size of the particles which are in suspension. If the particles are very large compared with the capillary feeding the solution into the spray chamber then the capillary will ...

View answer
Hybridisation of ClO2
2 votes

What I would suggest to you is to start with working out how many electrons (valence electrons) are present in the molecule. Each oxygen atom ($\ce{O}$) brings six electrons and the chlorine ($\ce{Cl}...

View answer
1
2 3 4 5