2,220 Answered Questions for the topic organic chemistry

Organic Chemistry

07/17/19

What is an example of a nomenclature?
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07/17/19

Which compound reacts faster in the Cannizzaro Reaction?
> Which reacts faster in the Cannizzaro Reaction? >a) $\\ce{OHC-C6H4-NO2}$ b) $\\ce{OHC-C6H4-OCH3}$ Obviously, a better hydride releasing group will react faster. Therefore my answer was... more
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07/17/19

Does the dipole moment increase or decrease by increasing the bond length?
It is established the dipole moment is a result of multiplication of the magnitude of charges (Q) and the distance between them (r). What I understand is that when an electron and a proton get... more
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Organic Chemistry Stability Isomers

07/17/19

Why is 2-methylpropene less in energy than its alkene counterparts?
Other isomers include 1-butene, cis 2-butene, and trans 2-butene. Why would 2-methylpropene be less in energy if there is more steric hindrance?
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Organic Chemistry

07/16/19

What are conformers in chemistry
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07/16/19

Explanation for the trends in nucleophilicity—Orbital interactions or electrostatic attraction?
The trend of halide nucleophilicity in polar protic solvents is $$\\ce{I- > Br- > Cl- > F-}$$ The reasons given by Solomons and Fryhle<sup>\\[1\\]</sup>, and by... more
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Organic Chemistry Carbocation

07/16/19

Why are vinylic and arylic carbocations highly unstable?
I have checked the internet and read quite a few books, but I still am not able to understand why vinylic and arylic carbocations are highly unstable.     What I found while surfing the internet... more
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Organic Chemistry Hydrogen Redox Catalysis

07/16/19

Difference between Lindlar and Rosenmund catalysts?
Is there any difference between the Lindlar and Rosenmund catalysts? I've checked around, and it seems the same compounds are used to make both. Is there a difference in their reactivities or are... more
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07/16/19

Why is acetic acid more acidic than phenol?
Acetic acid (ethanoic acid, $\\mathrm pK_\\mathrm a \\approx 5$) is more acidic than phenol ($\\mathrm pK_\\mathrm a \\approx 10$), which is reflected in their reactivity with a weak base such as... more
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Organic Chemistry Esters Food Chemistry

07/14/19

During the development of aspartame, why was the methyl ester chosen?
One frequent argument against the safety of the synthetic sweetener aspartame is that it can be hydrolyzed, with one of the hydrolysis products being methanol, which is known to be toxic. Of... more
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Organic Chemistry Chemistry

07/14/19

Acidic solution balancing
How to balance this equation?IO3^- + I^- -> i2
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Organic Chemistry Chemistry

07/14/19

Ideal gas graph question
How will the qualitative graph of P versus molar mass of a 1-g sample of different gases at constant volume and temperature look like?i am confused on how to derive the equation and then answer how... more
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Organic Chemistry Chemistry Biochemistry

07/11/19

Calculating Percent Yield Question
Aluminum oxide is produced in a single replacement reaction between aluminum and chromium (II) oxide. Calculate the percent yield if 603.0g of chromium(II) oxide were used with 422.5g of aluminum... more
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Organic Chemistry Acid Base Reactivity

07/11/19

Why is the iodide anion a good nucleophile but a poor base?
The $\\mathrm{pK_{aH}}$ of $\\ce I^-$ is very low which indicated that it is not favourable for it to bond with a proton. However, why would it be likely to bond with any other atom (mostly carbon... more
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Organic Chemistry Nomenclature

07/11/19

What is the IUPAC nomenclature of alkane with large numbers of C atoms (more than 200)?
What is the IUPAC nomenclature for alkanes with large numbers of $\\ce{C}$ atoms (more than 200)? For example, what is the IUPAC accepted name for $\\ce{C_{205}H_{412}}$?
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Organic Chemistry Chemistry

07/11/19

titration problem
A student weighs out 0.568 g of KHP (molar mass = 204 g/mol) and titrates to the equivalence point with 36.78 mL of a stock NaOH solution. What is the concentration of the stock NaOH solution? KHP... more
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Organic Chemistry Chemistry

07/11/19

Confused about the solubility of salts
How many of the following salts are expected to be insoluble in water? sodium sulfide - barium nitrate - ammonium sulfate - potassium phosphatea.1b.2c.3d.4e.nonei am confused why is the answer... more
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07/10/19

Strength of hydrogen bonding in phenol or methanol?
I wanted to know whether hydrogen bonding is stronger in phenol or methanol. I saw on Wikipedia about the enthalpies of hydrogen bonding in various cases. but could not find the answer to this... more
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Organic Chemistry Ionic Compounds

07/10/19

Has a carbon compound ever been found having an ionic bond?
Though it is highly unlikely, has any carbon compound been found to make an ionic bond and to exhibit ionic properties?
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Organic Chemistry Halides

07/10/19

Why does cyclopropane react with bromine?
In my exam, I was asked why cyclopropane could decolourise bromine water (indicating that it reacted with the bromine). All I could guess was that it is related to the high angle strain in... more
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Organic Chemistry Nucleophilic Substitution

07/10/19

Why do we get slightly more inversion product than retention product in SN1 reaction?
Theoretically, in $\\mathrm{S_N1}$ reaction we should get a racemic mixture as the product because the nucleophile can attack from either side of the formed carbocation. However, many textbooks... more
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Organic Chemistry Ph

07/10/19

How is the pKa of extremely weak acids determined?
According to Wikipedia, the conjugate acid of LDA has a pKa of about 35 - which is in line with figures I've seen elsewhere. How then can such a weak acid's pKa be determined? If the determination... more
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07/09/19

Why is the exo product formed in the Diels–Alder reaction between furan and maleic anhydride?
For most Diels–Alder reactions, the major product is *endo* because there are favourable interactions between the newly forming pi bond and the electron withdrawing groups of the dienophile. Why... more
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07/09/19

The effect of hyperconjugation on the stability of alkenes with MO theory?
Hyperconjugation stabilizes carbocations and that makes sense because electrons are given to the empty p orbital. But how does it stabilize alkenes? Can molecular orbital theory be used to explain... more
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07/09/19

Why does the carbonyl group in an acid anhydride have two stretching frequencies?
The carbonyl stretching frequencies for an acid anhydride are approximately $1820~\\mathrm{cm^{-1}}$ and $1760~\\mathrm{cm^{-1}}$. These are both higher frequencies than a simple ketone owing to... more
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