Chemistry Questions, Problems & Solutions : TransWikia.com ~ Page 15

Acidic strength of organic acids. Substituted PhCOOH acids

Could someone please explain the order of acidity of ortho, para and meta substituted benzoic acids with the substituent as methyl group?Methyl group operates +I and +R effect, I...

Asked on 12/19/2020 by strawberry-sunshine

1 answer

Help in understanding first law of thermodynamics?

What my sir has explained me :Change in energy = W=F(external force on body value) * displacement of wallls of container. If walls of a container are not moved...

Asked on 12/17/2020 by robert patrick

0 answer

phase equilibrium diagram

sorry for my bad english but can you explain me some things about this phase diagram. Is this transformation of...

Asked on 12/15/2020 by user102151

0 answer

Lewis structure of dinitrogen trioxide

I have a confusion related to the structure of $ce{N2O3}.$ I was taught 1 is the correct one, but I believe 2 is better since it has no formal...

Asked on 12/10/2020 by Rasputin

2 answer

When converting between a hydrated electrolyte amount in mass and in milliequivalents (meq), why are the water molecules taken into account?

A textbook I'm reading called "Ansel's Pharmaceutical Calculations, 13th edition" defines the milliequivalent (meq) thus (p. 187):This unit of measure is related to the total number of ionic charges in...

Asked on 12/08/2020 by Don_S

1 answer

Extrapolating from a calorimetry lab to find a new delta T with different volumes and grams of substance

So, we just finished an AP chem lab where the question was basically: Given the results of the lab were that $pu{5 grams}$ of $ce{CaCl2}$ and $pu{45ml}$...

Asked on 12/07/2020 by catdog

1 answer

Kinetics question regarding Rate Law

The acid catalysed hydrolysis of an compound $ce{A}$ at $pu{303K}$:$$ce {A ->[$k$] B}$$ has a half-life of $pu{100 min}$ when carried out in a buffer...

Asked on 12/05/2020 by Tony Stark

1 answer

Clar's rule of polycyclic aromatic hydrocarbons

Clar's rule states that the Kekulé resonance structure with the largest number of disjoint aromatic π-sextets, i.e., benzene-like moieties, is the most important for characterization of properties...

Asked on 12/04/2020 by mohamed

0 answer

Adsorption of Cu2+ using banana peels for pH 2,2.5,3,3.5,4

so basically I did my experiment which is the title. This is my procedure and results:Make 0.05M CuSO4pipette 50ml CuSO4change to respective pH values using HClAdd 2g of oven-dried banana...

Asked on 12/04/2020 by Brien Lim

0 answer

Unusual hydrolysis of methyl 2,4,6‐trimethylbenzoate

Problem 223 from Conceptual Problems in Organic Chemsitry by Singh [1, p. 367]:The given answer is b and I don't get why.Usual...

Asked on 12/02/2020 by Harry Scamander

1 answer

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