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What is the colour and smell of benzoic acid?
Benzoic acid looks like a very clear white powder , crystalline flakes. It smells like urine and even the smell is very irritant to eyes ! Made the experience of putting it close to my nose ! Be careful.
Why ortho benzoic acid is more acidic than para osomer?
Nitro group (-NO2), having -I and -R effect, is an electron withdrawing and deactivating group. Due to both these effects, it decreases electron density around the -COOH group of substituted(ortho, meta & para) benzoic acids and releases H+ ions, making these acidic. The nitrobenzoic acid which releases H+ group more easily is the most acidic. Due to ortho effect, ortho acids are more acidic than all other substituted acids(even if an electron donating group is present at the ortho position. The only exception is -NH2 group, in which ortho- aminobenzoic acid is NOT the strongest acid). Regarding acidity of meta and para acids, consider I and R effects. Inductive effects of meta and para acids reduce electron density around -COOH group, whereas resonance does not occur at meta position. It only occurs at para position, making the nitro group at para position a more strong withdrawer of electrons. Thus para-nitro benzoic acid is more acidic than meta-nitro benzoic acid. In short, the higher acidity of p-nitrobenzoic acid compared to m-nitrobenzoic acid is attributed to its -I and -R effect.
What do acid do to topaz?
Most substances will react with some acid or another. Even glass will be dissolved by hydroflouric acid and even gold will dissolve in aqua regia. As for regular acids, I have put a sample of topaz in a hydrochloric acid solution and after three weeks, it was unchanged.
Is 58 degrees Celsius hot?
Yes, 58 degrees Celsius is considered hot. This temperature is well above room temperature and can cause discomfort or even burns if in direct contact with skin for a prolonged period of time.
Are endospores acid fast?
Yes, endospores are acid-fast because their thick walls are resistant to most stains and dyes, including the acid-fast stain used in microbiology to detect mycobacteria like Mycobacterium tuberculosis. This resistance allows endospores to retain the stain even after decolorization with acid-alcohol.
What is the chemical name of benzoic acid after heating?
The products of the thermal degradation of benzoic acid are carbon dioxide and water.
What is the colour and smell of benzoic acid?
Benzoic acid looks like a very clear white powder , crystalline flakes. It smells like urine and even the smell is very irritant to eyes ! Made the experience of putting it close to my nose ! Be careful.
What would happen to the melting point of pure benzoic acid if 2-naphthol was mixed in?
The literature value of the melting point of pure benzoic acid is about 122.4 degrees Celsius, while the literature value of the melting point of pure 2-naphthol is close at 122 degrees Celsius. Nevertheless, the melting point of the benzoic acid should be depressed (go down) compared to the literature value if you were to add 2-naphthol because the sample you were testing would then be impure, even if that impurity does have a similar melting point. Also, the range over which the sample melts should get larger as well. Instead of melting within a degree or less, it may melt over the course of several degrees. So I just tested this in lab, and I can't promise that this is 50/50, but my melting point for 2-naphthol with Benzoic acid is 104.1-106.0 degrees Celsius This is a very basic answer, and the trend is true. However, with my organic chemistry professor, this answer would be followed by a blank look and "Why?" The best way to think of this is to look at the chemical structure of Benzoic Acid and 2-naphthol separate. Go ahead and Google it on a new tab. Now look at the molecule of the two together. And think: "What does the composite molecule have that the two alone don't?" Give up? Electronegativity. The more electronegative a molecule is the greater its reactivity. As in the compound molecule will melt easier than the two 'pure' substances.
What is para hydroxy benzoic acid?
Para hydroxy benzoic acid, also known as p-hydroxybenzoic acid or 4-hydroxybenzoic acid, is a type of aromatic compound commonly used in cosmetic and pharmaceutical products as a preservative or antimicrobial agent. Its chemical structure consists of a hydroxyl group (-OH) attached to the benzene ring at the para position.
How do you find volume in Celsius?
That would take some doing, since Celsius is not even a unit of volume. As a matter of fact, "Celsius" is not a unit of anything.
Which is hotter 10000 degrees Celsius or 5000 degrees Celsius?
10,000 degrees celsius. Source: School taught it to me even though I would think it is a no brainer.
Some foods are so high in acid that they are capable of making the acid in the stomach even stronger?
Some foods are so high in acid that they are capable of making the acid in the stomach even stronger.
Why ortho benzoic acid is more acidic than para osomer?
Nitro group (-NO2), having -I and -R effect, is an electron withdrawing and deactivating group. Due to both these effects, it decreases electron density around the -COOH group of substituted(ortho, meta & para) benzoic acids and releases H+ ions, making these acidic. The nitrobenzoic acid which releases H+ group more easily is the most acidic. Due to ortho effect, ortho acids are more acidic than all other substituted acids(even if an electron donating group is present at the ortho position. The only exception is -NH2 group, in which ortho- aminobenzoic acid is NOT the strongest acid). Regarding acidity of meta and para acids, consider I and R effects. Inductive effects of meta and para acids reduce electron density around -COOH group, whereas resonance does not occur at meta position. It only occurs at para position, making the nitro group at para position a more strong withdrawer of electrons. Thus para-nitro benzoic acid is more acidic than meta-nitro benzoic acid. In short, the higher acidity of p-nitrobenzoic acid compared to m-nitrobenzoic acid is attributed to its -I and -R effect.
What is body temperature in degrees Celsius?
It is 37 degree celsius Your body temperature for Celsius is 37 degrees Celsius.
Which one should you eat even or odd no fatty acid?
We should take even numbered fatty acid because even numbered fatty acid can easily be oxidized through beta oxidation for energy production but to oxidize odd numbered fatty acid, some other enzymes are needed..... psyche....
What s the lowest temperature in degrees Celsius?
Water freezes at 0 degrees Celsius but temperatures can be even lower than the freezing point of water.
Why surface of water freeze at 0 but under water not freeze even at 4c?
Because 4 degrees Celsius is higher than 0 degrees Celsius
