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Why is phosphorus acid dibasic?
Corrected Answer:Three main members of the phophORUS acid group are: (protons are in bold capitals)H3PO4; Phosphoric acid, PO(OH)3, tribasic acid, contains P in oxidation state +5H3PO3; Phosphorous acid,HPO(OH)2, dibasic acid, contains P in oxidation state +3H3PO2; Hypophosphorous acid, H2PO(OH), monobasic acid, contains P in oxidation state +1There is only one diprotic: H3PO3.When more structurally written as (HO)2HPOyou can see why it is diprotic: only from a P-(O-H) group the H can be ionised as H+ and can be donated as proton to a water molecule (acidic property). The H-P=O is NOT ionisable, thus not acidic.
Why H3PO3 is a dibasic acid?
H3PO3 is a dibasic acid because it has two replaceable hydrogen ions that can be ionized in a solution to form hydrogen ions (H+) and a phosphate ion (H2PO3-). This allows it to donate two protons and form two acidic solutions.
Is Nitric acid or Nitrous acid more acidic?
Nitric acid is more acidic than nitrous acid. This is because nitric acid has a lower pKa value (–1.3) compared to nitrous acid (3.3), indicating that nitric acid readily donates a proton in solution, making it a stronger acid.
Is KH2PO4 an acid and K2HPO4 a neutral?
Yes, KH2PO4 (potassium dihydrogen phosphate) is an acid because it can donate a hydrogen ion in solution. K2HPO4 (potassium hydrogen phosphate) is a salt formed by the partial neutralization of an acid and a base, making it neutral.
Which is more acidic methanesulfonic acid or propanoic acid?
Methanesulfonic acid is more acidic than propanoic acid. This is because the sulfonic acid group in methanesulfonic acid is a stronger acid group compared to the carboxylic acid group in propanoic acid.
Why is phosphorus acid dibasic?
Corrected Answer:Three main members of the phophORUS acid group are: (protons are in bold capitals)H3PO4; Phosphoric acid, PO(OH)3, tribasic acid, contains P in oxidation state +5H3PO3; Phosphorous acid,HPO(OH)2, dibasic acid, contains P in oxidation state +3H3PO2; Hypophosphorous acid, H2PO(OH), monobasic acid, contains P in oxidation state +1There is only one diprotic: H3PO3.When more structurally written as (HO)2HPOyou can see why it is diprotic: only from a P-(O-H) group the H can be ionised as H+ and can be donated as proton to a water molecule (acidic property). The H-P=O is NOT ionisable, thus not acidic.
Why H3PO3 is a dibasic acid?
H3PO3 is a dibasic acid because it has two replaceable hydrogen ions that can be ionized in a solution to form hydrogen ions (H+) and a phosphate ion (H2PO3-). This allows it to donate two protons and form two acidic solutions.
Is Nitric acid or Nitrous acid more acidic?
Nitric acid is more acidic than nitrous acid. This is because nitric acid has a lower pKa value (–1.3) compared to nitrous acid (3.3), indicating that nitric acid readily donates a proton in solution, making it a stronger acid.
Is KH2PO4 an acid and K2HPO4 a neutral?
Yes, KH2PO4 (potassium dihydrogen phosphate) is an acid because it can donate a hydrogen ion in solution. K2HPO4 (potassium hydrogen phosphate) is a salt formed by the partial neutralization of an acid and a base, making it neutral.
Which is more acidic methanesulfonic acid or propanoic acid?
Methanesulfonic acid is more acidic than propanoic acid. This is because the sulfonic acid group in methanesulfonic acid is a stronger acid group compared to the carboxylic acid group in propanoic acid.
Which is more acidic sulphuric acid or nitric acid?
Sulfuric acid is generally considered more acidic than nitric acid. This is due to sulfuric acid's ability to donate two protons in solution, making it a stronger acid. Nitric acid can only donate one proton.
Which is more acidic butanoic acid or 3 methyl butanoic acid?
3-methyl butanoic acid is more acidic than butanoic acid because the presence of the methyl group in 3-methyl butanoic acid increases the electron-withdrawing effect, making the molecule more acidic by stabilizing the conjugate base.
Which is more acidic formic acid or benzoic acid?
Formic acid is more acidic than benzoic acid. This is because formic acid has a simpler molecular structure with a hydrogen atom attached to a carboxyl group, making it easier to release the acidic hydrogen ion compared to benzoic acid, which has a more complex aromatic ring structure.
Why is salicylic acid more acidic than acetylsalicylic acid?
Salicylic acid dissociates in water to form a carboxylic acid group, making it more acidic compared to acetylsalicylic acid which has an ester group that is less acidic. The presence of the -OH group in salicylic acid contributes to its higher acidity compared to the -OR group in acetylsalicylic acid.
Which is more acidic hydrochloric acid or picric acid?
Hydrochloric acid is more acidic than picric acid. Hydrochloric acid fully dissociates in solution to release hydrogen ions, resulting in a lower pH compared to picric acid, which is a weaker acid that does not fully dissociate in solution.
Is vinegar more acidic than sulphuric acid?
Not at all, but it depends on how dilute the sulphuric acid, but usually no.
What is more acidic vinegar or citric acid?
Citric acid is more acidic than vinegar. The pH level of citric acid is around 2.2-3.5, while the pH level of vinegar is around 2.4-3.4. Therefore, citric acid has a slightly lower pH level, making it more acidic.
