All Questions

Can someone confirm that this is a correct way to make 2-butanol starting from 2-propanol? First add Cl2 and UV-light to it to become 1-chloro-2-propanol Make from CH3Cl a Grignard reagent by adding ...

According to the lowest locant rule shouldn't the numbering of the compound 1 start from the carbon at the 4th position, thus giving the IUPAC name as 1,2-dimethyl-4-hydroxybenzene? For compound 2 ...

I was just wondering, if heating food up is the result of increasing the energy of bends and stretches in the bonds of the molecules, is it ever possible for tiny amounts of x-rays and gamma rays be ...

I purposed a full mechanism of the almotriptane synthesis. I wanted to help my fellow students and myself. Could you give me any tips? Are there any mistakes? I posted the SnCl2 reduction already, but ...

To derive the Lever rule, the textbook I am reading sets: $$nz_A = n_\alpha x_A + n_\beta y_A\\ nz_A = n_\alpha z_A + n_\beta z_A$$ $x_A =$ liquid phase mole fraction of component $A$ $y_A =$ gas ...

Background/Research so far I'm actually not much of a chemist at all; but I'm doing research for a book I'm writing. The events of the story begin from a factory that produces/supplies jewel cases ...

Why is $\ce{H2O2}$ named hydrogen peroxide and not dihydrate dioxide?

I was wondering if it is a valid comparison to look at the ionic radius (noble-gas-like configuration) of a metal and the covalent radius of a noble gas. Specifically, $\ce{Al^{3+}}$ and $\ce{Ne}$. ...

Is this mechanism possible. I didnt find any sources of a mechanism of this specific reaction.

I recently opened up a old decompressed fire extinguisher out of curiosity. After some research I discovered that the dry powder inside, mono ammonium phosphate, can be used to make beautiful crystals....

$$\ce{Cu2S + 2 O2 -> 2 CuO + SO2}$$ Why are not these oxides $\ce{Cu2O}$, $\ce{SO}$ or $\ce{SO3}$? Is it connected to the stability of these molecules?

Is it possible in very acidic solutions for the nitrogens ($\ce{N}$) to get another $\ce{H+}$, making it $\ce{R-NH2+-R}$? Since it has a free electron pair, it might be possible right? If so, at which ...

If the ideal gas law $PV=nRT$ is not enough, as a second approximation the van der Waals equation $$\left(P+a\frac{n^2}{V}\right)\left(V-nb\right)=nRT$$ is applied. The constants $a$ and $b$ are van ...

Here is my understanding. If you have an endergonic reaction (m) with $\Delta G_m=-m$ and you couple it to an exergonic reaction (n) with $\Delta G_n=n$, where $n>m$, then the endergonic reaction ...

1,2,3-Trimethylcyclopropane has two stereoisomers. When one of the methyl groups is above the plane and other two are below the plane, then there are two chiral centres as well as a plane of symmetry. ...

Outline a plan of an experiment to determine the percentage of iron present as iron(III) in a solution containing $\ce{Fe^3+(aq)}$ and $\ce{Fe^2+(aq)}$ ions. You are provided with zinc, a standard ...

Anywhere I look, I get 3 resonating structures for CO molecule, like in this answer. However, according to the rules stated for drawing resonating structures in this site, I wonder why there can't be ...

Is it possible to create sulfuric acid using sulfur dioxide directly dissolved in water? Usually, people oxidize the $\ce{SO2}$ to sulfur trioxide ($\ce{SO3}$) first. If this is possible, why is it ...

I'm wondering if the chemicals involved in the Belousov-Zhabotinsky reaction would be at all poisonous. If at all, do you know of another similar oscillating reaction that could safely be ingested? [...

Which of the following are π-acceptor ligands? $\ce{PR3}$ $\ce{Cl-}$ $\ce{NH3}$ $\ce{H-}$ I know that $\ce{PR3}$ is a π-acceptor, and that $\ce{Cl-}$ is a π-donor ligand from my lectures. I am ...

Why can't fresh water and salt water mix? What happens when they collide with each other? What are their differences?

What exactly happens to blood cells when a persons blood is to alkaline? I know that if your pH level goes below 6.8 or above 7.8 you will die. I have read that if you go below 6.8 your cells will ...

I recently purchased a used set of lens for my telescope. They came in a nice aluminum case with foam inserts, but the foam has an odor. I am currently using just the sun to try to rid the foam of the ...

At room temperature, some reaction propagate merely upon intermixing the reagents (e.g. autoignition of triethylborane), while others require additional heat to initiate (e.g. crystallization of ...

When doing NMR spectroscopy, it is an observed fact that equivalent hydrogens do not split one another. Why don't equivalent hydrogens split each other's signals? For example, why is the NMR spectrum ...

It doesn't seem like it would, but some folks I know are adamant about boiling their water before ingesting it and the online articles I've found on this seem very subjective.

Solution I contains a mixture of $\ce{FeCl2}$ and $\ce{FeCl3}$, and solution II contains a mixture of $\ce{K4Fe(CN)6}$ and $\ce{K3Fe(CN)6}$. The concentrations of iron-containing species satisfy the ...

Specifically, the substances should be water-miscible or water-soluble, but not water itself. Additionally, they should be absorptive but not opaque.

$$\ce{2Cr(OH)3 + 4NaOH + 3H2O2 -> 2Na2CrO4 + 8H2O}$$ How does this reaction occur? We suddenly get sodium chromate in the place of chromium hydroxide. I can't understand it. We mix two hydroxides ...

I am doing some air emissions calculations and I really just have a bad feeling about my results. By definition, molecular weights are given in $\pu{g/gmol}$. For the substance I have, I was told by ...

I know the phase diagram shows negative slope for water which is an exceptional case... But how do you read that graph and get to the conclusion that density is increasing? It's the one with ...

So I was studying some graphics of the representation of orbitals in terms of radial dependence. My graphic is similar to this one: https://www.google.pt/search?q=radial+dependence+of+orbitals&...

The following picture shows the melting and boiling point trends down group II elements. I have added question marks where the variability in data was rather disturbing (over two hundred degrees ...

I was trying to understand what partial pressure of a gas in a liquid means and found the following sentence in a book I don't get it fully. What does it mean, can someone please explain? (What does ...

I have the following exercise: Determine the wavelength of an electron removed from an atom of hydrogen, in gas state, by a photon of wavelength of 45 nm. So what I immediately thought was to ...

I made an ant poison using boric acid and peanut butter for grease eating ants. They eat the peanut butter (mixed with some olive oil to get it closer to a liquid), but I see a white residue (...

I would like to know the density of the Methane with a temperature of 348.15 Kelvin because i guess it is not the same that we can find on Wikipedia. Someone know where can i find that ? Thank you

I have some very plain candles. I don't think they contain anything but paraffin wax and octadecanoic (stearic) acid, since they are odorless and very hard to bend, tending to crack instead (even at ...

My assumption is yes, as the $\mathrm{pH}$ levels of each will be similar and thus they have the same acidity. Is this correct or am I missing something?

I was reading this answer and its reasoning behind the dissolution of NaCl seems to lie in entropic favorability. However, as it states, many, if not most, dissolution reactions are favored by ...

What is the working principle that allows zeolites to be catalysts in hydrocracking? Is it only their acidic ability to hold hydrogen and release to crack the oil?

Is there a method or free api written in swift for converting smiles strings to the corresponding 2D structures? I have used babel or ibabel with python, but how do i use it with swift?

Is it possible using electrochemistry or some other method to reverse a typical single replacement reaction to go in the opposite direction. For example, is it possible to take silver metal and ...

In hybrid functional such as B3LYP, PBE0, HSE etc, some part of HF exchange and/or correlation is added to some part of DFT X/C part in order to get better results. My question is if I am adding 1/4 ...

I live just outside of Tucson Arizona and there are a lot of venomous spiders, scorpions and other potentially harmful critters. I have 2 retrievers, 2 cats and 4 turtles and would like to avoid ...

In modern chemistry, - pH meter, ion electrode, AES, HPLC, etc. replacing titration - HPLC replacing recrystallisation - IR and NMR replacing melting point analysis, derivative analysis, functional ...

I am a little bit confused on what I am supposed to do. The instructions say to prepare 250 mL of this solution by measuring out in grams the amount of PFT using a 250 mL volumetric flask. Then it ...

The strength of an acid is related to the number of molecules which have dissociated into hydronium ions in aq solution of that acid while proticity is the number of hydronium ions furnished by 1 ...

In planar annulenes, huckel's rule effectively states that compounds with a full HOMO for their conjugated $\pi$ systems are considered aromatic while those with a half filled outer shell are ...

I'm planning to conduct an experiment in which I test how fast rusting occurs with changes to the concentration of NaCl in the solution. I want to measure that by finding the change in mass of an ...