All Questions

If I saturate water with Glycine at 100C and add pure Acetic Acid (in quantities equal to 5% of the volume of the solution) and leave it under reflux for a night, will the glycine be affected in any ...

If a solid biomass undergoes pyrolysis at 800 degrees Celsius for about 40 minutes, what would be the output of it? I was thinking of Solid: Coke, Liquid: Tar and Heavy Hydrocarbon (gases).

From Wikipedia: A tetrameric structure of the crystalline material was verified by NMR spectroscopy and X-ray crystallography. The species is described by the formula $\ce{Al[(μ-O-i-Pr)2Al(O-i-Pr)2]3}...

From my understanding, if you were to look at a pressure-volume graph of a reversible, isothermal expansion, the area under it would represent reversible work. Similarly, if you were to graph an ...

Are there any tables with empirical equations to calculate properties of air as a function of a temperature at 1 atm? For example, NIST provides such equations for a large number of gases, but I was ...

My teacher told us the middle carbon in 3‐bromopentane‐2,4‐diol is chiral: $$\ce{CH3-CH(OH)-\overset{\star}{C}H(Br)-CH(OH)-CH3}$$ Since there are two identical groups around it, I would guess it ...

The 10% retinol soln is in soy oil. the aliquot is 0.025lbs(2.5%) of a 1 lb batch, going into a cream.

If one has a cation, is that always a base or a conjugate base? If one has an anion, is that always an acid or conjugate acid? If not, can you mention any of these ions? Also, if not every ion needs ...

I am studying the very BASIC introduction of catalysis in general chemistry and encountered an example of a heterogeneous catalyst, which is catalytic hydrogenation of alkene into alkane using Pt/C or ...

I am following traditional techniques using egg white to make a glaise for gold leaf embossing on to leather. The glaise dries on to the leather, gold leaf is laid on it, a heated diestamp is applied ...

Why is there $H,N$ and $CO$ attached to the suffix of equilibrium constants? Particularly how to use these as suffixes? Nothing can be extracted from the reaction. There are many $H,N$ and so on like $...

Hydrocortisone cream seems to be sold as 1% w/w, but my cream is 1% m/m, which is confusing. Are they the same units or the same concentrations?

I have been trying to solve this problem Part a) can be proved using the formula . For part b), the expectation value of the potential energy can be calculated from the integral , where Therefore, ...

I'm currently writing a thesis about using dispersive liquid-liquid microextraction DLLME for extracting nitramines from aqueous solutions. We've been using octan-1-ol as the extractant and HPLC for ...

I am a complete novice at Protein-Protein interactions but needed a bit of clarity. I have a model that produces binding affinity between a drug and a viral target in terms of Kd values. I want to ...

During prepation of alkanes From alkanes,alkenes are hydrogenated using catalyst platinum at room temperature.

How would it be found the Gibbs energy at a certain temperature, if they just give you another Gibbs energy at a temperature? For example: Given $\Delta G = -230 Kcal/mol$ at $773K$ for the reaction $...

I asked a question previously on here but still have some confusion. To briefly summarize, I made a voltaic cell for a school project with 0.1 M copper nitrate and varying concentrations of aluminum, ...

is there a trick to determine if a species has a coordinate(dative covalent bond)? I looked at this answer:Identifying coordinate bonds, he gave an example of SO3, where he calculated the formal ...

So I understand that if twice as much of the reactants are present, then twice as much energy is released. But isn’t the energy released per mole of reactant still the same? You are just scaling up ...

This is regarding a situation where an atom has five electron domains; two domains are lone pairs, and three are bonds to other atoms. The course materials I am using (focusing on VSEPR theory) ...

It is known that the inhibition of acetylcholinesterase by isomalathion can proceed either with diethyl succinate as the leaving group or thiomethyl, depending on the specific stereoisomer of ...

The question is: 1dm3 of 1M NaOH was warmed with 30.0g of impure (NH4)2SO4 fertilizer. After all the NH3 was driven off 25.0cm3 of solution required 30.2cm3 of 0.1M HCl to neutralize the unreacted ...

What is the Lewis Dot structure for As2Cl2. When I try drawing it I am left with an unfilled octet with only 7 electrons.

The $\ce{[PbCl4]^{2-}}$ complex ion is formed when $\ce{PbCl2}$ is exposed to excess $Cl^-$ ions in solution as explained here and here through the following reversible reaction: $$\ce{PbCl2(s) + 2Cl^-...

Why is the boiling point of TiCl2 (1500°C) so much higher than the boiling point of TiCl4(136°C)? Thank you in advance

Ethylene gas, $\ce{C2H4}$, reacts with hydrogen in the presence of a platinum catalyst to form ethane according to the equation: $$\ce{C2H4 (g) + H2 (g)-> C2H6}$$ 0.035 mol of a initial mixture of ...

I would have said that the answer was no, because lithium is less reactive than potassium is, so you would expect the reaction to go the other way: with potassium and lithium chloride reacting to ...

In my book, the IUPAC name of the compound [Pt(NH3)2Cl(NH2-CH3)]Cl is given as Diamminechlorido(methanamine)platinum(II) chloride. I have a doubt that why we are naming 'methanamine' in parenthesis? ...

a) Calculate the pressure exerted by 0.0153 moles of CO2 gas in a container of 1.467 L at 20.0 °C. b) What is the volume of a 15.0 g sample of propane (C3H8) gas at Standard Temperature Pressure? ...

The question came to my mind as to whether the effect of a catalyst on a reaction included the modification of the frequency factor (or pre-exponential factor) of a reaction, shown in Arrhenius' ...

Why doesn't $\ce{Al^{3+}}$ form a coordination compound with ammonia? $\ce{Al^{3+}}$ forms $\ce{[Al(H2O)6]^{3+}}$ in water, so why can't it form a similar compound with NH3?

On a planet Q, there is a metal Y with an atomic number of 48. Y has three isotopes Y-124, Y-128 and Y-138. From analysis, it is known that the abundance of Y-138 is 4 times more than Y-124. The ...

The reaction which proceeds in forward direction is: a) $\ce{SnCl4 + Hg2Cl2 -> 2HgCl2 + SnCl2}$ b) $\ce{2 CuI + I2 + 4K+ -> 2Cu^{2+} + 4KI}$ c) $\ce{NH3 + H2O + NaCl -> NH4Cl + NaOH}$ d) $\ce{...

The solution to this question was an E2 product. However I assumed the reaction would be SN2 since 1-bromo-2-methylpropane had a primary substrate. Why is the product E2? Process of thinking: (OF why ...

One mole of N2O (g) at 300K is kept in a closed container at 1 atm. It is heated to 600K when 20% by mass of N2O4 is decomposed to NO2(g). What is the resultant pressure. A) 1.2 atm B) 2 atm c) 2.4 ...

I am trying to break down the starches in a certain variety of oats in the most efficient way possible. I have to break the whole oats down after cooking, so they are finer particles for the amylases ...

I have a $4\times4$ electron density matrix in 6-31G for $\ce{H2}$ using psi4 and I am wondering how to get the natural orbitals of the system. I have diagonalised the density matrix $\mathbf{M}$ into ...

I'm studying equilibria and thermodynamics and came across these two terms. My problem is, unlike other thermodynamic properties that I can understand physically like Volume, Pressure, Enthalpy etc. ...

The chemical formula of Atrazine is C8H14ClN5, however, I can't seem to find a structure for it that has the right amount of each element. Most structures look like this

(asked in Indian civil services chemistry optional exam, 2009) I want to ascertain whether oxidation state of Ru is positive(H present as hydride ligand) or negative(H present as positive counter ion)....

I was doing research on buckwheat sprouts (as to whether I should include them in my diet) and I came across a website that said eating too much can cause fagopyrism, which is caused by compounds ...

If I have some solid material like biomass and incinerate it at 1000 Celsius degrees for 15 minutes in an oxidized atmosphere within an incineration oven. As an output it gives me ash. Is the ...

I know that this is a very common question but it's important to address because I thought d orbital contraction only had an effect on the effective nuclear charge ($Z_{eff}$) but recently I came to ...

In my book (NCERT India) the below diagram and a corresponding explanation is given. The line tells that the observed standard electrode potential of manganese is more negative than the calculated one ...

In a zinc-copper voltaic cell, What causes the initial electron movement from the zinc to the copper? I understand that copper would pull the electrons more strongly than zinc, but only if it is ...

I am designing a conveyor oven. Aluminum molds are being heated with gas heaters. I want to know what will be air temperature?

Which is correct for a gas ? a) mean free path is less than collision diameter b) mean free path is greater than collision diameter c) mean free path is equal to collision diameter

I recently started studying chemistry after a long pause in my education so pardon me if it is a simple question. In the organic chemistry course I am taking, the professor told us that the first ...

I've come across an interesting protocol for photochemical reduction of benzophenone to benzhydrol (diphenyl methanol) with sodium alcoholate in alcohol, the 2nd protocol in https://prepchem.com/...