All Questions

Soap and shampoo are both cleaning agents in our daily life. Why does shampoo produce more foam than body soaps?

So if in a balanced chemical equation, the mass of both reactants are equal then would there be a limiting reactant? Please help I am in need of help.

I do experiment with a gellant that absorbs oil. When it has enough oil, it would create a big chunk (see #2); however, if it gets less amount of oil, it will make small spheres with a weaker adhesion ...

When I reacted copper chloride and aluminum foil instead of getting the brown color I got green color. Can anyone share their procedure where the experiment actually succeeded?

For the longest time, weak acid-strong base titration curves completely baffled me. I understood that the equivalence point of a strong acid-strong base titration is reached when equal numbers of ...

I recently bought a new chair, and after unboxing and assembling it I noticed a very strong chemical smell. The chair cushions are made of foam and the upholstery is PU leather, so I'm assuming that ...

Would trimethylsilane as a benzene substituent have an activating effect relative to tert-butyl for electrophilic substitution reactions?

Metamers are compounds having the same molecular formula but different number of carbon atoms, on either side of functional group. In the above compounds, the number of carbon atoms around the ester ...

I am clearly missing something obvious here. I get the $\mathrm{K_{sp}}$ from the CRC for $\ce{CuI}$ as $1\cdot10^{-12}$. So, $\ce{CuI-> Cu+ + I-}$ So the formula ought to be $$\mathrm{K_{sp}...

I was reading up on the derivation of the values of various critical state functions( $\ce{Vc}$, $\ce{pc}$ and $\ce{Tc}$) from the Van der Waals equation (Physical Chemistry by G.W. Castellan). There, ...

I want to increase the rate of evaporation of methanol by sucking off its vapour as it evaporates. Is it possible and can we mathematically show it? Also I want to produce a refrigeration effect so I ...

I want to know what is pharmaceutical and chemical engineering. What do they work. Is it good to study it.

Among H2S, H2Se, H2Te the strongest acid is H2Te. The reason being that the bond strength in it the weakest so it dissociates easily. But my question is that why does it looses H+ in first place ...

I am working with Morse interatomic potential, I searched through the Internet but I could not find any Morse parameters for Zirconium element. Is there any table, handbook or something like these ...

I am unable to understand what is meant by this term, I encountered it on this paper. https://science.sciencemag.org/content/278/5338/658.full

Given an unsymmetrical alkene in a simple non-stereoselective catalytic hydrogenation reaction. If one would want to investigate the nuances in the catalytic cycle of a dihydride complex leading to ...

I would figure the order would be (in order of smallest Rf to largest) W, Z, Y, X. Is the carboxylic acid more polar than the acetic anhydride?

The Warren-Cowely Parameter (WCP) for short range solution order is defined as: $$\mathrm{WCP}_{ij} = 1 - \frac{Z_{ij}}{x_j \cdot Z_i}$$ where $Z_{ij}$ is the partial Coordination Number (CN) of ...

How will the equilibrium of following reactions be affected 1) N2(g) + O2 (g) ⇄ 2NO(g); 2) 4HCl(g) + O2(g) ⇄ 2Cl2(g) + 2H2O(g) a) by rise of pressure; b) by decrease of oxygen concentration? Explain ...

Why do some colloids don't precipitate(lyophilic) and some do(lyophobic)? Why is gold lyophobic, why does it need protective colloids also why does NaCl cause precipitation in gold sol?

Recently I have been asked to sketch the chemical structures for every condensed tetracyclic aromatic hydrocarbon. I have managed to find 7 structures, but my chemistry teacher's solution was ...

In epoxidation of halohydrins when the carbons have more branchs (methyl) the rate of reaction will be incresed, than the halohydrin without methyl branchs? Whats the reason?

My textbook, Atkins' Physical Chemistry, 11th edition, by Atkins, de Paula, and Keeler, says the following: Although it is good practice to use only SI units, there will be occasions where accepted ...

Could we reduce the vapour pressure by constantly sucking vapour from the liquid surface?

In a galvanic cell, there are two reactions taking place. One is oxidation and other one is reduction. The reduction reaction is $\ce{Cu^2+ + 2 e- -> Cu}$. In this reaction, the copper 2+ ion ...

I got an MCQ in my examination, "Which one of the following is more metallic?" and the options were Sr, Na, Be or Aluminium. I know that sodium is more metallic than Be or Al but my mind stuck on ...

0.1 mole of HCN and 0.01 mole of AgI are in solution in 1 litre of water. We add solid soda to increase the pH of the solution. Ka(HCN/CN-)=10^-9.2 Ks(AgI)=10^-16 KD(Age(CN)^- 2)=10^-21 When the AgI ...

The following reaction is conducted using $\pu{1.8 g}$ of $\ce{CH3I}$ and $\pu{250 mL}$ of a $\pu{0.2 mol L-1}$ solution of aqueous $\ce{HCl}$. $$\ce{CH3I (l) + NH3 (aq) -> CH3NH2 (aq) + HI (aq)}$...

I used this table (http://microscopy.berkeley.edu/Resources/instruction/buffers.html) to make a citrate buffer system. The Pka value is 6.4, and I multiplied the solution by ten to make a larger batch....

I am currently studying the textbook Infrared and Raman Spectroscopy by Larkin. In the first chapter of the textbook, the author presents the following table and accompanying explanation: The ...

I am a year 12 Chemistry student and I was wondering if you could help me with some questions I have about a Galvanic cell experiment? I am doing an experimental report in Chemistry. The experiment I ...

Enantiomers have identical rotational spectrum because their mass distributions are identical. Recently a trick has been introduced in microwave spectroscopy in which a enatiomerically pure gas chiral ...

If I am in the wrong section please let me know so I can repost/have it moved to the correct location. So I am currently trying to get into distillation, I have some potential uses for it in my line ...

I have synthesised a biomaterial using 12 grams agar powder, 18 grams glycerol and 400ml water. I have tried different formulas mainly being reducing the amount of glycerol and water but the physical ...

After some research, I found the most common surgical masks are 3-ply type II. They have 3 layers of polypropylene, one is the filter and the other 2 are for protection. They filter between 98 and 99% ...

I found a problem in which I am given a hypothetical reaction in which from 2 liquids (reactants) I get 4 moles of gas and 1 mole of a solid substance (products): $$\ce{A (l) + B (l) -> 4C (g) + ...

How is silica gel prepared from sand (after extracting it). How many ways can it be used? Is there a way to make it without an oven?

first of all sorry for my bad english - it is not my native language. Let's say that there is a procces (1->2) where PxT= const. How can we calculate the work of this proccess? For instance, if the ...

How do the eigenvectors of the Hessian Matrix for potential energy surface correspond directly to the physical directions of translation, rotation and vibration? I see that they might correspond to ...

I am a high school student working on a lab investigating the relationship between the concentration of sugar added to orange juice and vitamin c content (measured by DCPIP titration). I have read ...

What is the reaction mechanism of the following reaction: $ ROR+CO $->$RCOOR $ I tried to search but couldn't find online.

As far I know carboxylic acids have a OH group but during dissociation only hydrogen gets separated. The CO moiety is polar, demonstrating that oxygen is much more electronegative than carbon. Why ...

sry i well explain better and simplify if we a have a molecule can we calculate its energy as a whole with it bonds electrons and protons and neutrons and to how match accuracy

The configuration of palladium is 2,8,18,18. Then what is it doing in the 5th period? Is there an explanation without the concept of subshells?

I'm reading Shrivers Inorganic Chemistry book and some of the equations have a (sol) state on them. I'm sure the book has already defined this but I cannot find where. Examples: \begin{align} \ce{[...

In the Nernst equation we are taught that the reaction quotient can have pressure terms and concentration terms simultaneously. According to my knowledge this does not happen anywhere else, so why can ...

Which one of these products is the most stable, and why?

I am trying correlate some experimental properties of a molecule to its calculated equilibrium geometry. To do so, I calculated the geometry and energy of some conformers. Now, I obtain mixed results ...

The structure of $\ce{H2CrO4}$ is as follows: Shell configuration of chromium is 2,8,13,1 i.e. it has only 1 valence electron and only valence electron participate in bonding but Chromium in the ...

I have a project where I'm trying to program my own force field, and I decided to use the AMBER gaff2.dat force field parameters. However, I am really struggling parsing the gaff2.dat file when it ...