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I have a solution of [copper acetate][1] and I would like to play around with the ligands to get different colors.
**Background:** The copper acetate was made through mixing vinegar (5% acetic acid), $\ce{NaCl}$, and $\ce{C}_{\textrm{(s)}}$. The deep blue-colored copper acetate spontaneously formed during a month in... |
I would presume that PCC is not organic soluble due to the relatively strong ionic bonding between the anion and cation on account of their similarly large size. Although the charge on the pyridine is not stabilised by resonance, the charge on the chromium molecule is. Does this weaken the ionic bond enough so that the... |
Why is PCC soluble in organic solvents? |
Suppose I bought a newly manufactured daniell cell then in this situation can someone explain what all will be going on at the zinc and copper electrode(Since it is newly manufactured and not used in external circuit the question of charges being transferred from one electode to another does not arise)So would there be... |
You can find a list of constants $a$ and $b$ for [the van der Waals equation in a Wikipedia website](https://en.m.wikipedia.org/wiki/Van_der_Waals_constants_(data_page)). Accordingly, hexane has a higher attraction constant ($a$) than that for water (24.71 vs 5.536), but water has a higher boiling point than hexane. So... |
Suppose I bought a newly manufactured Daniell cell then in this situation, can someone explain what all will be going on at the zinc and copper electrode? (Since it is newly manufactured and not used in external circuit the question of charges being transferred from one electrode to another does not arise) So would the... |
$\ce{Cu(II)}$ and $\ce{Ag(II)}$ complexes are known to exist while $\ce{Au(II)}$ is unstable and disproportionates to $\ce{Au(I)}$ and $\ce{Au(III)}$.
My guess as to possible reasons to this effect is that $\ce{Au(II)}$ like $\ce{Cu(II)}$ and $\ce{Ag(II)}$ cannot undergo Jahn-Teller Distortion, the cause of their st... |
I am in 12th std and was revising the concept of determining which polyatomic molecule can be polar and which can be non polar. So when this example was given we were told that vertical dipole moment will not be cancelled out . But is'nt it possible that it can be cancelled out. Also is there any other molecule which h... |
I am in 12th std and was revising the concept of determining which polyatomic molecule can be polar and which can be non polar. So when this example was given we were told that vertical dipole moment will not be cancelled out . But is'nt it possible that it can be cancelled out. Also is there any other molecule which h... |
I am in 12th std and was revising the concept of determining which polyatomic molecule can be polar and which can be non polar. So when this example was given we were told that vertical dipole moment will not be cancelled out . But is'nt it possible that it can be cancelled out. Also is there any other molecule which h... |
Why is SO_2 molecule polar? |
Perturbational Molecular Orbital Thoery - How to derive the results? |
I have read that a virtual state is created when Raman scattering occurs. Since this state is forbidden, the molecule upon absorbing a photon (not enough to take it to the next electronically excited level) immediately gives off the stokes or anti-stokes shifted photon with delay in the order of femto-seconds. If the p... |
How is the naming of formyl chloride $\ce{CHOCl}$ justified?.What is the functional group in it. Why can't I name it as Methanoyl Chloride as Acid Halide is given more preference than Aldehyde. |
How is the naming of formyl chloride $\ce{CHOCl}$ justified? What is the functional group in it?
Why can't I name it as **methanoyl chloride** as acid halide is given more preference than aldehyde? |
[![enter image description here][1]][1]
This may be somewhat long but I Hope to be useful..
There are only two major types of energy, namely, kinetic and potential energy. So the answer for your first question**"Does it perhaps turn into kinetic energy as soon as the bonds are broken or maybe alter the structure ... |
I am in 12th standard and was revising the concept of determining which polyatomic molecule can be polar and which can be non polar. So when this example was given we were told that vertical dipole moment will not be cancelled out. But isn't it possible that it can be cancelled out? is there any other molecule which ha... |
Why is the Sulphur Dioxide molecule polar? |
I would presume that Pyridinium Chlorochromate is not organic soluble due to the relatively strong ionic bonding between the anion and cation on account of their similarly large size. Although the charge on the pyridine is not stabilised by resonance, the charge on the chromium molecule is. Does this weaken the ionic b... |
Why is Pyridinium Chlorochromate soluble in organic solvents? |
It does not matter if the cell was previously already used in circuit or not.( unless the cell is exhausted )
For both electrodes, there is ongoing bidirectional exchange of the positive metallic cations, what changes the electrode potential.
At equilibrium, both processes go by the equal rate with the equilibrium p... |
It does not matter if the cell was previously already used in circuit or not.( unless the cell is exhausted )
For both electrodes, there is ongoing bidirectional exchange of the positive metallic cations, what changes the electrode potential.
At equilibrium, both processes go by the equal rate with the equilibrium p... |
I am preparing Barium Hexaaluminate (BHA) using Ba(NO₃)₂, Al(NO3)3 & (NH4)2CO3.
For 1 mole of each Ba(NO₃)₂ & Al(NO3)4, I am using 1.5 moles of (NH4)2CO3.
Following are my questions:
1. What temperature to select for reaction, according to some research papers we should use 60 °C. But the problem with keeping rea... |
I've noticed that when water boils, it makes a lot of noise. After the water reaches boiling point, even though the water is still ""rolling", the water quiets down. What is all the noise about and why does it go away? |
why does a pot of boiling water quiet down after it reaches boiling point but is still roiling? |
>I am preparing Barium Hexaaluminate (BHA) using $\ce{Ba(NO3)2, Al(NO3)3}$, and $\ce{(NH4)2CO3}$. For $\pu{1 mol}$ of each $\ce{Ba(NO3)2}$ and $\ce{Al(NO3)4}$, I am using $\pu{1.5 mol}$ of $\ce{(NH4)2CO3}$.
Following are my questions:
1. What temperature to select for reaction, according to some research papers ... |
Why glucose and other similar carbohydrates are oxidised fully by $\ce{HIO4}$? |
Why do geometrical (cis and trans) isomers of *[Pt(NH3)(Br)(Cl)(py)]* not show optical activity ? (Despite the fact that they are non-superimposable mirror images of each other) . Thanks In Advance... |
>Can someone explain this phenomenon in terms of rate of reaction or in terms of molecules?
In terms of rate of reaction, at equilibrium the forward rate is proportional to the concentrations of the reactant (as if this were an elementary reaction). Likewise, at equilibrium the reverse rate is proportional to the co... |
Why glucose and other similar carbohydrates are oxidised fully by HIO4? |
I am an amateur in this field of science and I am trying to separate a solution of Sodium Iodide and water. How would I separate the solution so I can obtain sodium? |
The creation reaction for copper hypochlorite per Mellor:
$$
CuSO4+Ca(OCl)2 → CaSO4(s)+Cu(OCl)2
$$
However, copper hypochlorite is not stable and on standing breaks down. I believe Mellor is likely accurate on describing the reaction and products:
Reference: "A comprehensive treatise on inorganic and theoretical... |
The creation reaction for copper hypochlorite per Mellor:
$$
CuSO4+Ca(OCl)2 → CaSO4(s)+Cu(OCl)2
$$
However, copper hypochlorite is not stable and on standing breaks down. I believe Mellor is likely accurate on describing the reaction and products:
Reference: "A comprehensive treatise on inorganic and theoretical... |
The creation reaction for copper hypochlorite per Mellor:
$$
CuSO4+Ca(OCl)2 → CaSO4(s)+Cu(OCl)2
$$
However, copper hypochlorite is not stable and on standing breaks down. I believe Mellor is likely accurate on describing the reaction and products:
Reference: "A comprehensive treatise on inorganic and theoretical... |
The creation reaction for copper hypochlorite per Mellor:
$$
CuSO4+Ca(OCl)2 → CaSO4(s)+Cu(OCl)2
$$
However, copper hypochlorite is not stable and on standing breaks down. I believe Mellor is likely accurate on describing the reaction and products:
Reference: "A comprehensive treatise on inorganic and theoretical... |
The creation reaction for copper hypochlorite per Mellor:
$$
CuSO4+Ca(OCl)2 → CaSO4(s)+Cu(OCl)2
$$
However, copper hypochlorite is not stable and on standing breaks down. I believe Mellor is likely accurate on describing the reaction and products:
Reference: "A comprehensive treatise on inorganic and theoretical... |
The creation reaction for copper hypochlorite per Mellor:
$$
CuSO4+Ca(OCl)2 → CaSO4(s)+Cu(OCl)2
$$
However, copper hypochlorite is not stable and on standing breaks down. I believe Mellor is likely accurate on describing the reaction and products:
Reference: "A comprehensive treatise on inorganic and theoretical... |
When we say the electronegativity of Nitrogen is 3.04 ( on pauling scale ) what is the hybridisation of Nitrogen? Similarly for other elements? |
The creation reaction for copper hypochlorite per Mellor:
$$
CuSO4+Ca(OCl)2 → CaSO4(s)+Cu(OCl)2
$$
However, copper hypochlorite is not stable and on standing breaks down. I believe Mellor is likely accurate on describing the reaction and products:
Reference: "A comprehensive treatise on inorganic and theoretical... |
[Wikipedia says][1]
> WD-40's formula is a trade secret
How can it remain a secret today? Can't mass spectrometers, NMR and other equipment be used to determine the structure of the compounds that go into it?
[1]: https://en.wikipedia.org/wiki/WD-40 |
How can the formula of WD-40 remain a trade secret? |
A fundamental problem in analytical chemistry is that we never analyze a complete unknown mixture simply because of time and money constraints. Finding each and every component of a complex unknown mixture is quite impossible. NMR is good for pure compounds only, mass spectrometer is "blind" to several analytes because... |
Can Si be used as anode. I assume you could store much more energy in Si since the atom is much larger than C, but then Si seems not to like to bond with itself. Can there be a solution? |
I was looking at the graphs for the density of air at different temperatures (link below) and I was wondering if air would not react with itself at high temperatures? I read that oxygen and nitrogen react at 1600 Celsius, but even below that average temperature (because of the Maxwell Boltzmann distribution) I’m guessi... |
Why do geometrical (cis and trans) isomers of *[Pt(NH3)(Br)(Cl)(py)]* not show optical activity ? Thanks In Advance... |
It does not matter if the cell was previously already used in circuit or not.( unless the cell is exhausted )
For both electrodes, there is ongoing bidirectional exchange of the positive metallic cations, what changes the electrode potential.
At equilibrium, both processes go by the equal rate with the equilibrium p... |
It does not matter if the cell was previously already used in circuit or not.( unless the cell is exhausted )
For both electrodes, there is ongoing bidirectional exchange of the positive metallic cations, what changes the electrode potential.
At equilibrium, both processes go by the equal rate with the equilibrium p... |
A general definition of bond order in molecular orbital theory? |
The following text is from *Chemistry Part I - Textbook for Class XII (NCERT)*, chapter "The Solid State", page 23, topic "1.9 Imperfections in Solids", sub topic "1.9.1 Types of Point Defects - (iii) Frenkel Defect":
> This defect is shown by ionic solids. The smaller ion (usually cation) is dislocated from its nor... |
Why Frenkel defect does not impact the density of the solid? |
In another question it was noted that acetone is a useful solvent for removing pencil marks from wood surfaces.
(Source: https://woodworking.stackexchange.com/a/1870/763)
I'm used to acetone being used as a solvent for things like spray foam, nail polish, etc. but was surprised it could 'dissolve' pencil lead. I ... |
How does acetone remove pencil marks? |
It's common to read statements like:
>1. Tetrachloroethene ($\ce{CCl2=CCl2}$) was earlier used as a solvent for dry cleaning, but since it contaminated ground water and is a ***suspected*** carcinogen, it has been replaced by .........
>2. Various hydrocarbons harms plant tissues, shed leaves, flowers and tw... |
How do one tell (or conclude) if a substance is carcinogenic? |
What temperature is required to burn pencil lead graphite? |
From another vantage, departing from the classic organic chemistry perspective, I start with 2012 article in Atmospheric Chemistry and Physics 12, pages 6237–6271 (full paper at https://www.atmos-chem-phys.net/12/6237/2012/acp-12-6237-2012.pdf ) regarding the haloform reaction in atmospheric conditions (and a path var... |
From another vantage, departing from the classic organic chemistry perspective, I start with 2012 article in Atmospheric Chemistry and Physics 12, pages 6237–6271 ([full paper](https://www.atmos-chem-phys.net/12/6237/2012/acp-12-6237-2012.pdf) ) regarding the haloform reaction in atmospheric conditions (and a path var... |
From another vantage, departing from the classic organic chemistry perspective, I start with 2012 article in Atmospheric Chemistry and Physics 12, pages 6237–6271 ([full paper](https://www.atmos-chem-phys.net/12/6237/2012/acp-12-6237-2012.pdf) ) regarding the haloform reaction in atmospheric conditions (and a path var... |
*How do we tell or suspect one compound to be carcinogenic?*
As written in the comments to the question, this the result of large studies on the human population, correlating blood or urine levels of some substance to instances of cancer. Alternatively or concurrently, studies on animal models, such as mice, rats or... |
I have read about ionsitol nicotinate which is used as a medication for deficiency in vit. B-3 .I think that if acetic acid was applied to this medication it would form pyridinium ion and acetate ion, but I don't know if the acetic acid will react with inositol in a transesterification reaction and form nicotinic acid ... |
How is the pH scale constructed , I mean the strength of an acid is determined by its pK<sub>a</sub> value and this one can be determined in different solvents if water doesn't suits it but how do you determine the pK<sub>a</sub> value of a substance in water after you have found the value of its pK<sub>a</sub> in anot... |
How is the pH scale constructed? |
From another vantage, departing from the classic organic chemistry perspective, I start with 2012 article in Atmospheric Chemistry and Physics 12, pages 6237–6271 ([full paper](https://www.atmos-chem-phys.net/12/6237/2012/acp-12-6237-2012.pdf) ) regarding the haloform reaction in atmospheric conditions (and a path var... |
Mechanism for reaction of acetone with conc. H2so4.
The product is supposed to be mesitylene and on various sites I found the reason behind it to be aldol condensation And some sites did things which were weird. Does this reaction have a reasonable reaction mechanism or do we just have to mug this up? What are these ... |
From another vantage, departing from the classic organic chemistry depiction, I start with 2012 article in Atmospheric Chemistry and Physics 12, pages 6237–6271 ([full paper](https://www.atmos-chem-phys.net/12/6237/2012/acp-12-6237-2012.pdf) ) regarding the haloform reaction in atmospheric conditions (and a path varia... |
From another vantage, departing from the classic organic chemistry depiction, I start with 2012 article in Atmospheric Chemistry and Physics 12, pages 6237–6271 ([full paper](https://www.atmos-chem-phys.net/12/6237/2012/acp-12-6237-2012.pdf) ) regarding the haloform reaction in atmospheric conditions (and a path varia... |
The bond dissociation energies of C-H bonds in alkanes, alkenes and aromatic compounds decrease in the following order: primary > secondary > tertiary > allylic > benzylic.
The weaker the bond, the lower the bond dissociation energies. Does the acidity of primary, secondary, tertiary, allylic and benzylic hydrogens fo... |
Actually, I would recommend a more simple process to determine the potential carcinogenic ability of a compound.
In the lab, is it apparent that the compound readily undergoes decomposition creating radicals in aqueous saltwater containing transition metals, oxygen and CO2 at pH levels found in the human body?
Su... |
Actually, I would recommend a more simple process to determine the POTENTIAL carcinogenic ability of a compound.
In the lab, is it apparent that the compound readily undergoes decomposition creating radicals in aqueous saltwater containing transition metals, oxygen and CO2 at pH levels found in the human body?
Su... |
Mechanism for reaction of acetone with conc. $\ce{H2SO4}$:
The product is supposed to be mesitylene and on various sites I found the reason behind it to be aldol condensation And some sites did things which were weird.
- Does this reaction have a reasonable reaction mechanism or do we just have to mug this up?
... |
Actually, I would recommend a more simple process to determine the POTENTIAL carcinogenic ability of a compound (I believe this is what you are, in effect, asking in being able to 'tell').
In the lab, is it apparent that the compound readily undergoes decomposition creating (directly or otherwise) radicals in aqueou... |
Actually, I would recommend a more simple process to determine the POTENTIAL carcinogenic ability of a compound (I believe this is what you are, in effect, asking in being able to 'tell').
In the lab, is it apparent that the compound readily undergoes decomposition creating (directly or otherwise) radicals in aqueou... |
Actually, I would recommend a more simple process to determine the POTENTIAL carcinogenic ability of a compound (I believe this is what you are, in effect, asking in being able to 'tell').
In the lab or reported in the research literature, is it apparent that the compound readily undergoes decomposition creating (di... |
I found this problem in a practice sheet. The original source doesn't indicate any authorship or whatsoever.
It states the following:
> A sealed container of $6.24\,L$ in capacity has humid air at
> $30^{\circ}C$. The container temperature is then lower to
> $27^{\circ}C$. Find the volume of condensed water. Th... |
Is it possible to find the volume of water from condensation without the initial pressure of the flask? |
I recently took a chemistry test in which the following problem was offered:
>a 137 mL gas sample is collected over $\ce{H2O}$ at $753\ \mathrm{mmHg}$ and $22\ \mathrm{^\circ C}$. What is the volume of the dry gas at STP if the vapor pressure of $\ce{H2O}$ at $22\ \mathrm{^\circ C}$ is $22\ \mathrm{mmHg}$?
>a) ... |
I was researching how to make pure sodium from salt because I think it would be interesting to do. In all of the articles I read that talked about using $\ce{NaCl}$ they said to melt it and then use electrolysis. Would dissolving the $\ce{NaCl}$ in water then using electrolysis work? Electrolysis of $\ce{NaCl}$ dissolv... |
Actually, I would recommend a more simple process to determine the POTENTIAL carcinogenic ability of a compound (I believe this is what you are, in effect, asking in being able to 'tell').
In the lab or reported in the research literature, is it apparent that the compound readily undergoes decomposition creating (di... |
I am writing this response as there are many compounds that do NOT surprise me as being carcinogenic!
As such, I would recommend a simple process to determine the POTENTIAL carcinogenic ability of a compound (I believe this is what you are, in effect, asking in being able to 'tell').
In the lab or reported in the... |
I found this problem in a practice sheet. The original source doesn't indicate any authorship or whatsoever.
It states the following:
> A sealed container of $\pu{6.24 L}$ in capacity has humid air at $\pu{30 ^\circ C}$. The container temperature is then lower to $\pu{27 ^\circ C}$. Find the volume of condensed w... |
Is it possible to find the volume of condensed water by temperature change without knowing the initial pressure of the flask? |
I am writing this response as there are many compounds that do NOT surprise me as being carcinogenic!
As such, I would recommend a simple process to determine the POTENTIAL carcinogenic ability of a compound (I believe this is what you are, in effect, asking in being able to 'tell').
In the lab or reported in the... |
I found this problem in a practice sheet. The original source doesn't indicate any authorship or whatsoever.
It states the following:
> A sealed container of $\pu{6.24 L}$ in capacity has humid air at $\pu{30 ^\circ C}$. The container temperature is then lower to $\pu{27 ^\circ C}$. Find the volume of condensed w... |
I am playing around with a toy model of a transition metal complex where the HOMO are $d$-electron states of predominantly transition metal character. Let's say this is a $d^1$ (or $d^9$) system and the states are split in energy by ligand field effects. The relevant HOMO orbital is some linear combination of $d$-orbit... |
I am writing this response as there are many compounds that do NOT surprise me as being carcinogenic! (forgive me, as I have an inherent fault of standing up and speaking what I believe to be the truth)
I thus recommend a simple process to determine the POTENTIAL carcinogenic ability of a compound (I believe this is... |
I have read about inositol nicotinate which is used as a medication for deficiency in vitamin B-3. I think that if acetic acid was applied to this medication it would form pyridinium ion and acetate ion, but I don't know if the acetic acid will react with inositol in a transesterification reaction, and form nicotinic a... |
I am writing this response as there are many compounds that do NOT surprise me as being carcinogenic! (forgive me, as I have an inherent fault of standing up and speaking what I believe to be the truth)
I thus recommend a simple process to determine the POTENTIAL carcinogenic ability of a compound (I believe this is... |
I am writing this response as there are many compounds that do NOT surprise me as being carcinogenic! (forgive me, as I have an inherent fault of standing up and speaking what I believe to be the truth)
I thus recommend a simple process to determine the POTENTIAL carcinogenic ability of a compound (I believe this is... |
This problem is sloppily worded and, technically, it is not possible to give a definitive answer based on the information provided. But the missing information is not what you think -- you don't need to know the air pressure in the flask. What's missing are two key pieces: The degree of humidity (e.g., is the air sa... |
What are some other gases that liquify at around the same temperature as ammonia? |
I am writing this response as there are many compounds that do NOT surprise me as being carcinogenic! (forgive me, as I have an inherent fault of standing up and speaking what I believe to be the truth)
Now arsenic has been mentioned and interestingly, inorganic arsenic compounds interfere with the basic mechanism o... |
I am writing this response as there are many compounds that do NOT surprise me as being carcinogenic! (forgive me, as I have an inherent fault of standing up and speaking what I believe to be the truth)
Now arsenic has been mentioned and interestingly, inorganic arsenic compounds interfere with the basic mechanism o... |
I am writing this response as there are many compounds that do NOT surprise me as being carcinogenic! (forgive me, as I have an inherent fault of standing up and speaking what I believe to be the truth)
Now arsenic has been mentioned and interestingly, inorganic arsenic compounds interfere with the basic mechanism o... |
I found this problem in a practice sheet. The original source doesn't indicate any authorship or whatsoever.
It states the following:
> A sealed container of $\pu{6.24 L}$ in capacity has humid air at $\pu{30 ^\circ C}$ with a $RH=90\%$. The container temperature is then lower to $\pu{27 ^\circ C}$. Find the volu... |
We know that Mn shows variable oxidation states ranging from +2 to +7 but why is +1 oxidation state of Manganese(Mn) not stable?
The +1 oxidation state of Mn would have a configuration of 4s1 3d5.
What is that I am missing or wrong with?
|
[Wikipedia says][1]
> WD-40's formula is a trade secret
How can it remain a secret today? Can't mass spectrometers, NMR and other equipment be used to determine the structure of the compounds that go into it?
To put the value of the secret into perspective, the WD-40 company (whose flagship product is its name... |
Is there any difference between medical and cleaning Ozone? |
I found this problem in a practice sheet. The original source doesn't indicate any authorship or whatsoever.
It states the following:
> A sealed container of $\pu{6.24 L}$ in capacity has humid air at $\pu{30 ^\circ C}$ with a $RH=90\%$. The container temperature is then lower to $\pu{27 ^\circ C}$. Find the volu... |
How does one tell (or conclude) if a substance is carcinogenic? |
I have read about inositol nicotinate which is used as a medication for deficiency in vitamin B-3. I think that if acetic acid was applied to this medication it would form pyridinium ion and acetate ion, but I don't know if the acetic acid will react with inositol in a transesterification reaction, and form nicotinic a... |
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