HSO4 (aq) = 30.2 (aq) + H*(aq) K = 0.012, this is a weak acid. When H2SO4 is dissolved in water, the first proton is assumed 100% dissociated because H2SO4 is a strong acid. After H2SO4 dissociates, we have H and HSO4 present. HSO4 is a weak acid and can donate some more protons to water.
Is HSO4 a strong or weak acid?
HSO4- is the conjugate base of H2SO4 but it can still give its Hydrogen away, and thus it is a weak acid as well. It’s weak because it doesn’t part with its hydrogen as easily as H2SO4 did.
Why HSO4 is a strong acid?
HSO4- is not a strong acid because it is actually a weak acid. That means that it partially dissociates to make H+ and SO4^2-. However, H2SO4 is a strong acid and completely dissociates to create H+ and HSO4-.
Is H2SO4 acid a strong acid?
Sulfuric acid is a very strong acid; in aqueous solutions it ionizes completely to form hydronium ions (H3O+) and hydrogen sulfate ions (HSO4−). In dilute solutions the hydrogen sulfate ions also dissociate, forming more hydronium ions and sulfate ions (SO42−).
Is HSO4 stronger than H2SO4?
ScienceChemistryQ&A LibraryWhy is HSO4–(aq) a weaker acid than H2SO4 A. Because HSO4–(aq) dissociates to a larger extent than H2SO4(aq), it is therefore a weak acid and a strong electrolyte.
Is HSO4 ionic or covalent?
H2SO4 is an ionic compound.
Is HSO4 a strong Nucleophile?
Why are SO4- and HSO4- weak nucleophiles? – Quora. perfect nucleophile is like a tip of a spear, all negative charge is located on one atom and no any steric hindrance around it.
How can HSO4 be an acid and base?
Also, HSO4- is the conjugate acid of SO4–2. If you add H+ to SO4–2, you get HSO4-. You see, HSO4- is a base compared to H2SO4, but is an acid compared to SO4–2. This is the essence of the definitions of acids and bases according to Bronsted and Lowry.
Is HSO4 a conjugate acid or base?
If you consider the REVERSE reaction, HSO4- is a base on the other side of equation – it is the thing that ACCEPTS the proton, so it would act as a BASE. It is the conjugate base of H2SO4. H2SO4/HSO4- is an acid/conjugate base pair. H20 is the base in the forward rxn, because it accepts a proton, and becomes H3O+.
Is HSO4 a buffer?
Yes. You can form a buffer using HSO4^- and SO4^2-. HSO4^- is a weak acid. H2SO4 is a strong acid, but only for the first H+.
Why is H2SO4 a weak acid?
Weak acids, like strong acids, ionize to yield the H+ ion and a conjugate base. Because HCl is a strong acid, its conjugate base (Cl−) is extremely weak.
Strong and Weak Acids and Acid Ionization Constant.
| Acid | Conjugate Base |
|---|---|
| H2SO4 (sulfuric acid) | HSO4− (hydrogen sulfate ion) |
| HNO3 (nitric acid) | NO3− (nitrate ion) |
| Weak Acids |
Is H2SO4 a sulfuric acid?
Sulfuric Acid (H2SO4) is a strong mineral acid that has is colorless when pure. This chemical is used as a chemical intermediate to manufacture other chemicals and cleaning metal surfaces. The formula for sulfuric acid is H2SO4. The molar mass of sulfuric acid is 98.07848 g mol.
Is H2SO4 a stronger acid than HCl?
Generally, both Hydrochloric acid (HCl) and Sulfuric acid (H2SO4) are really strong acids compared to any other acids. However, HCl is stronger than H2SO4. This is mainly due to the difference in the basicity of both acids. Additionally, if we look at the pKa value HCl has a pKa of -6.3 and sulfuric acid has a pKa ~-3.
Is hc2h3o2 a strong acid?
No, it is not classified as a strong acid in aqueous solutions. Strong acids are the acids that completely dissociate in water. Common strong acids…
Is HNO2 a weak acid?
Nitrous acid (HNO2), a weak acid, is very unstable and exists only in aqueous solution.
Which acid is a strong acid?
The strong acids are hydrochloric acid, nitric acid, sulfuric acid, hydrobromic acid, hydroiodic acid, perchloric acid, and chloric acid.
Is hydrochloric acid ionic or covalent?
In its gaseous state, HCl is a covalently bonded molecule but exhibits considerable polarity. In aqueous solution, the molecules ionizes to produce H+ and Cl- in The presence of water acting as a Base. The ability to ionize also makes it useful as an electrolyte.
What is HSO4 in chemistry?
Hydrogen Sulfate is an anion with the chemical formula HSO4–. It forms sulfuric acid when exposed to water.
What state of matter is HSO4?
Is HSO4 a solid liquid or gas?
| HSO4– | Hydrogen Sulfate |
|---|---|
| Melting Point | 59 °C |
| Chemical Formula | HSO4– |
Is H3O+ a strong acid?
H3O+ is only a strongest acid which is present in significant concentrations in diluted aqueous solutions.
Is EtO a strong base?
Ethoxide (ethoxide ion; EtO–): CH3CH2O–; the conjugate base of ethanol. A strong base (frequently used in E2 and enolate reactions) and a good nucleophile.