All Questions

what is the name given to the reaction between acid and salt example, Hydrochloride acid react with Calcium carbonate salt

I'm looking into adding hydrogen to my vehicle's air intake as a method of hybridization. Obviously, this could go badly for a number of reasons... But my primary question here is how could this ...

It is said that non-metallic oxides are acidic in nature and H20 is also a non-metallic oxide so will we consider water to be acidic? Even though its pH is more than 7

I want to know the stability order of allotropes of phosphorus. Upon searching I realised that two types of stabilities are defined in their case kinetic thermodynamic But I am somewhat confused (...

In the synthesis of (S)-Diphenyl(pyrrolidine-2yl)methanol, I need to extract the product using an organic solvent and water. Which organic solvent is the most suitable in this case? Ethyl acetate: I ...

If $\ce{M^2+}$ is radioactive with alpha emission, then the correct order of radioactivity of following substances is? $\pu{1g}$ $\ce{MO}$ $\pu{1g}$ $\ce{MSO4}$ $\pu{1g}$ $\ce{MgCl2}$ $\pu{1g}$ $\ce{...

Here, (b) is the major product due to formation of tertiary conjugated carbocation. My questions are: 1- Will a kinetically favoured (minor) product (c) form? 2- Is product (d) possible due to high ...

I am learning to determine whether a monocyclic conjugated alkene is aromatic or anti-aromatic or not. question 1: cyclobutadiene: according to Huckel's rule, 4 * 1 = 4, it should be antiaromatic, ...

So I have been studying the four methods the past couple of weeks. To my understanding, XPS is a very surface-sensitive technique. It can give information about the composition of the surface but also ...

Net Reaction: $$\ce{6CO2(g) +6H2O(l) -> 6O2(g) + C6H12O6(aq)}$$ Why is the overall change in entropy positive, over the series of reactions that make up this process?

As Borazole (B3N3H6) is aromatic,it shows electrophilic aromatic substitution.Now,my question is when borazole undergoes electrophilic aromatic substitution reaction,on which atom does the ...

I was going through my chemistry textbook when I encountered this very disturbing explanation on lattice energy.In this text, it seems like the writer is implying that for an ion pair in the gaseous ...

Can you please tell me how to calculate the number of moles of drug needed if I want to react 20 molar excess, mol wt known of the drug to an antibody whose volume and concentration is known ?

If we consider the experimentally determined pka values, it looks like hydroxide ion should be the right answer but in many books it has been mentioned that all alcohols are less acidic than water ...

Consider the following atomic model for Helium. Helium contains 2 electrons revolving in circular orbit around the nucleus,in such a way that there is minimum possible repulsion between them.Calculate ...

Question 1 The formula for concentration of cane sugar as a function of time is given by $$k = \left(\frac{2.303}{t}\right) \log\left[\frac{\alpha(0) - \alpha(\infty)}{\alpha(t) - \alpha(\infty)}\...

Our issue...in a nutshell: We use 6463-T6 aluminum as a sampling "cell" for analysis of water and ethanol vapor mixtures in both wet and dry gas variations. As I understand it, the ...

I thought ammonium nitrate was an oxidizer that needed to be mixed with fuel to form a high explosive (e.g., ANFO). But apparently there have been accidental explosions involving just the "...

How to get or understand a sample in chemistry without knowing its chemical name or compound or formula? I was thinking about whether there is a way to understand what the chemical compound sample ...

As sn+4 is more stable than sn+2 it should form sn+4! Answer of this question is 2

I am studying Lewis structure and I have a question about an excercise. The question asks what is the Lewis structure of $\ce{R-COO^-Na+}$. I don't know how to draw it correctly.

In the synthesis of N-ethoxycarbonyl L-proline methyl ester from L-proline and ethyl chloroformate, I dry the organic phase over sodium sulfate. Can I use calcium chloride instead of sodium sulfate? I ...

In the synthesis of N-ethoxycarbonyl L-proline methyl ester from L-proline and ethyl chloroformate, I use $\ce{K2CO3}$ to neutralize $\ce{HCl}$. Can I use $\ce{CH3CO2K}$ instead of $\ce{K2CO3}$? I ...

Question Which of the following statement(s) is/are correct regarding human blood? A) It exists in the different colors B) It has both paramagnetic and diamagnetic characters C) The $\ce{Fe^2+}$ ion ...

Is antioxidant and reducing agent is the same? If not, what's the difference between them?

CaCO3 in rosenmund reduction, lead in Lindlar's catalyst, or steel in Raney nickel all act as poisins but the carbon in Pd/C is just for support. How do the others affect the catalytic activity but ...

Suppose I have the equilibrium in a closed container at constant temperature: $$\ce{2CaSO4(s) -> 2CaO(s) + 2SO2(g) + O2(g)}$$ If the volume of the container is halved, the reaction should move ...

I wanted to bond TPU films to PMMA slab. I have tried thermal bonding but it is was not practical(I do not know why?). Can anyone please give me a method to bound them? Thanks

Based on my knowledge, lattice energy is proportional to the multiplcation of the charge of the ions, divided by the sum of the radius of ions, as follows. Since iodide has a larger radius than ...

Chemical reactions occur at constant temperature and pressure. Consider a gaseous, equilibrium reaction: $\ce{2NO2(g) <=> N2O4(g)}$. Most questions/textbooks formulate such questions by stating:...

Soxhlet extractors are often coupled to a specifically designed condenser with a very large lower joint. Is this inherent to it's function as a condenser in the apparatus or only because the Soxhlet ...

Question For the reaction, $$\ce{2NO(g) + 2H2(g) -> N2(g) + 2H2O(g)}$$ The rate expression can be written in the following ways: $\frac{\mathrm{d}[\ce{N2]}}{\mathrm{dt}} = \mathrm{k_1}[\ce{NO}][\...

What is the reaction mechanism here? I guess the $\ce{SnCl2}$ reduces $\ce{NO2}$ to $\ce{NH2}$ but then what happens?

What is the quantum mechanical approach of explaining the fact that: "The size of the atom increases when a new shell is filled" ??? I mean how do you explain this phenomenon using ideas of ...

I am an 11th grade student. I am a bit confused in organic chemistry (General Organic Chemistry). I am unable to understand that whether oxygen wants to disperse its electron density or increase its ...

My isopropyl alcohol is expired. What happens when it expires? Does it break down into something else? Can I still use it to clean or sanitize?

Had an accidental discovery. Produced a mixture of hydrochloric acid in water (roughly azeotropic) with a moderate amount of tin(II) chloride dissolved within, then added several mL of that to 100mL ...

A reversible process is a process in which the system is in mechanical and Thermal equilibrium with its surroundings. Consider a simple thermodynamic system: a gas in a vessel, with a piston (free to ...

Spirulina is a consumable algae with some benefits and only one downside I have noticed. according to my research 2,300 mg of sodium a day is way too much. 10 OZ. of spirulina contains just under 3,...

In whatever resources I have consulted to study reversible thermodynamic processes, a common statement seems to be : The system and surroundings (if the boundary allows) are in mechanical ($P_{sys}=...

A Google search has lead me to believe that PLGA goes for anywhere between 8 USD and 100 USD per gram. Meanwhile, for PLA (3d printer grade), prices float around 50-100 USD per kilogram. I understand ...

Why is the melting point of 1,4-dichloro benzene more than that of 1,2-dichloro benzene? According to me the latter has more dipole moment,so it should result in more molecular interactions and hence ...

So aluminium cans melting is prone to formation of aluminium oxide due to presence of oxgygen and thin sheet of aluminium (large surface area). To mitigate this I can design a cruicible which is ...

If there is a 1M aqueous solution of 1 liter NaCl (aq), and the molar conductivities of the solution and the chloride ions were found to be $x$ and $y$ respectively, is it accurate to say that the ...

An article on Khan-Academy, states the following: The overall reaction rate is determined by the rates of the steps up to (and including) the rate-determining step Here, it says that rate is ...

Consider $\ce{CH_3CONH-CH3}$. Is the amide nitrogen a stereocentre? I know 2 factors that can affect the chirality: amine inversion and resonance. I don't know if they apply here.

In my textbook it is written that Kolbe's electrolysis converts an alkyl acetate ion into an alkane, alkene and an ester, can anyone explain the mechanism behind this synthesis?

How do you all remember the name of chenical formula of Glucose, Lime, Vinegar ... etc. becasue these substances have big big chemical formula. So, How do I remember their chemical formula?

I have been trying to understand the scale of atoms, thinking about sand grains as an example. With approximately $7.5\times10^{18}$ grains of sand on the earth that is $1.25\times10^{-5}$ moles of ...

Reading my chemistry 101 again I can not find a graphical difference between an ionic bond (gaining-losing and electron) and a covalent bond (sharing) an electron when I try to think of the orbits/...