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Why is the hydrogen atom of the -OH group on a carboxylic acid the most acidic hydrogen in this type of molecule?
Wiki User
∙ 15y ago
In a carboxylic acid, all hydrogen atoms are attached to carbon atoms except from the one attached to the oxygen atom, on the end of the molecule. This hydrogen ionises on contact with water, producing an H+ ion and an O- ion, which remains attached to the rest of the molecule.
Only this hydrogen atom will ever ionise, if hydrogen is attached to carbon it will never ionise, no matter what.
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoresonance. if it loses its hydrogen, the negative charge can be distributed between two different oxygen atoms. they share this charge and therefore can easily lose an H
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What is the acid part of an amino acid?
An acidic acid is something with a pH of less than 7.0. Actually this term is used for Amino acids having carboxylic groups higher than amino groups.
What functional group causes a molecule of citric acid to be acidic?
Carboxyl
Why is glutamic acid an acidic amino acid and lysine a basic amino acid?
Glutamic acid has a carboxylic acid (COO-) group on the gamma carbon of the amino acid. The carboxylic acid group carries a negative charge and is considered acidic. Lysine has a amino group (NH3+) on the zeta carbon of the amino acid. The positively charged group on the terminal carbon atom makes it an basic amino acid.
Amino acids can act as acids and as bases why?
Amino Acids, as their name suggests, have a both an amine group (NH2) and a carboxylic (COOH) group. Amine groups are basic and when we treat them with strong acid (like your classic hydrochloric acid), we can protonate them to form NH3+. Carboxylic groups are acidic and when we treat them with strong base (like your classic sodium hydroxide) we can deprotonate them to form (COO-). Amino acids, because they contain both a basic amine group and an acidic carboxylic group, can act as either an acid or a base.
What is the chemical attraction between the acid group of one amino acid and the amino group of another amino acid can form?
the carboxylic acid group of a amino acid will give of an OH molecule while the amino group of the other will give of an H atom to form ah H2O molecule and while the carboxylic group or the C terminal connect to the amino group of the other giving you CONH as the peptide bond.
To make an organic molecule less acidic what functional groups should be added to the molecule in order to do so?
carboxylic acid and its derivatives
What combination of atoms makes the molecule of stearic acid an acid?
The chemical formula of the stearic acid is CH3(CH2)16-COOH. The carboxylic group (COOH) has an acidic character.
What atom or group of atoms makes aspirin a Bronsted-Lowry acid?
The carboxylic acid group or -COOH group makes it acidic
Which functional groups are lactones formed?
Lactones can be formed from the reaction of a hydroxy group of a molecule with a carboxylic acid functional group on the same molecule.
What is the explanation for the acidic strength of carboxylic acids?
Carboxylic acids are organic molecules that include a carboxylic functional group (-COOH). The functional group consists of a carbon center, with a double bonded oxygen and a single bonded hydroxol (OH) group.Acids are characterized by the ability to donate or release protons when dissolved in solution. The easier the protons, or H+ ions, are released into solution the more acidic the molecule.The hydroxol group (OH) releases H+ (hydrogen ion) readily when dissolved in solution, forming the conjugate base ( -COO- ).Typical pH ranges of carboxylic acids, such as ethanoic acid, are from 2-3. Methanoic acid is slightly more acidic, with a pH of about 1.5-2.5.
What is the carbonyl group present at the end of a molecule will make the molecule?
The carbonyl group, -COOH, makes a molecule acidic.
What is the acid part of an amino acid?
An acidic acid is something with a pH of less than 7.0. Actually this term is used for Amino acids having carboxylic groups higher than amino groups.
-COOH is what functional group?
-COOH is the carboxyl functional group, which is called carboxylic acids, or organic acids. This is what gives vinegar its sour taste. It has acidic properties because of the hydrogen ion and found in ionic forms in cells, which is called carboxylate group.
Organice compounds that have a negative Oxygen Hydrogen functional group?
Organic compounds with an oxygen hydrogen functional group are either alcohols or carboxylic acids
Is esterfication a substitution or addition reaction?
It is substitution because hydrogen of carboxylic acid is replaced by an alkyl group.
A chain of amino acids used to make a protein?
amino acids contain a basic amine group (NH2) and an acidic carboxylic acid group (CO2H)
What functional group causes a molecule of citric acid to be acidic?
Carboxyl
