What is HC2O4?
What is HC2O4?
The hydrogen oxalate ion (HC2O4-) is amphiprotic. Write a balanced chemical equation showing how it acts as an acid toward water.
Is hydrogen oxalate an acid?
Oxalate(1-) is a dicarboxylic acid monoanion that is the conjugate base of oxalic acid. It is a dicarboxylic acid monoanion and an oxalate. It is a conjugate base of an oxalic acid.
What is the conjugate acid of hso3 −?
PO can’t be a conjugate acid because it has no H in the formula. All of the others are conjugate acids. To determine what each one’s conjugate base is, remove one H and reduce the charge by 1 (i.e., subtract 1 from the original charge). So, for example, the conjugate base of HPO is HPO.
Is no3 a weak base?
Water-soluble ionic compounds that contain hydroxide ions are strong bases. We will expect all other bases to be weak….
| Strong | Weak | |
|---|---|---|
| Anions | OH- | Anions in ionic compounds except OH-, Cl-, HSO4- NO3-, ClO4-, HSO4- and H2PO4-. |
| Certain uncharged molecules | None | NH3 |
Which ion is the weakest base?
Thus, NO3− is the weakest base among the given.
Which is the weakest conjugate base?
∴ HCl is the strongest acidic and Cl− is weakest conjugate base.
What is the strongest conjugate base?
Among both of them acetic acid is the weakest acid and so it will form the strongest conjugate base. -Hence CH3COO− will be the strongest conjugate base because it has been formed from the weakest acid (CH3COOH).
What is the strongest Bronsted acid?
carborane acid
How do you know if a conjugate base is weak?
There is a relationship between the strength of an acid (or base) and the strength of its conjugate base (or conjugate acid): ⚛ The stronger the acid, the weaker its conjugate base. ⚛ The weaker the acid, the stronger its conjugate base. ⚛ The stronger the base, the weaker its conjugate acid.
Why conjugate base of weak acid is strong?
The use of conjugate acid-base pairs allows us to make a very simple statement about relative strengths of acids and bases. The stronger an acid, the weaker its conjugate base, and, conversely, the stronger a base, the weaker its conjugate acid.
Is BA OH 2 a strong base?
Solubility of Ba(OH)2 is much higher than Sr(OH)2. So more OH- amount can be given by Ba(OH)2 to the aqueous solution. Therefore, Ba(OH)2 is a strong base than Sr(OH)2.
What is a stable conjugate base?
A conjugate base is more stable when the negative charge is on an electronegative element and when the charge is delocalized over multiple atoms. The more stable the conjugate base, the stronger the acid. A very strong acid has a very weak conjugate base and a very weak acid has a very strong conjugate base.
Does higher electronegativity mean stronger acid?
Therefore, the more electronegative, the more electrons there are in a similarly sized space. More concentrated electrons = more stable base = weaker acid. But electronegativity = more concentrated electrons (even though size trumps it). And electronegativity = stronger acid.
Why is Br more stable than CL?
Because a bromine atom has one more full shell than a chlorine atom, it has more shielding which means the attraction between the nucleus and an electron is weaker.
How do you know which compound is more stable?
Rules for estimating stability of resonance structures
- The greater the number of covalent bonds, the greater the stability since more atoms will have complete octets.
- The structure with the least number of formal charges is more stable.
- The structure with the least separation of formal charge is more stable.
How do you know if a compound is thermodynamically stable?
If it doesn’t have enough kinetic energy to move out of its current position, we say that it is kinetically stable or kinetically trapped. If it has reached the global minimum, we say it is thermodynamically stable.
What makes a resonance structure more stable?
The most stable resonance structure will have a full octet on every atom. 2. The most stable resonance structure will have the smallest possible number of charges. The most stable resonance structure will have negative charges on the most electronegative atoms and positive charges on the least electronegative atoms.
Which resonance is more stable?
Structure II
What are three exceptions to the octet rule?
However, there are three general exceptions to the octet rule: Molecules, such as NO, with an odd number of electrons; Molecules in which one or more atoms possess more than eight electrons, such as SF6; and. Molecules such as BCl3, in which one or more atoms possess less than eight electrons.
What is the least stable resonating structure?
Structure (A) is the least stable resonating structure because in this structure the negative charge is present on the carbon atom attached −NH2 group which is electron donating in nature which will destabilize the molecule. Was this answer helpful?
Which Carbocation is most stable?
Therefore, (CH3)3C+ is the most stable carbocation.
Which is the most stable alkene?
Since, the most alkyl groups are attached in 3-methylpent-2-ene among all the given alkenes, the most stable alkene among the given alkenes is 3-methylpent-2-ene.
Which is the least stable Carbocation?
methyl
Which is more stable Benzylic Carbocation or allylic carbocation?
Generally, the benzylic carbocations are more stable than allylic carbocations as they form more number of resonating structures and have less electron affinity.
Why 3 degree Carbocation is most stable?
because -CH3 is electron providing group. and more the number of electron providing group more stable will be carbocation. therefore 3 degree carbocation is more stable. Tertiary carbocation possess minimum positive charge due to – (1) hyper conjugation (2) electron releasing inductive effect of alkyl group .
Do more stable carbocations react faster?
The more stable the carbocation is, the easier it is to form, and the faster the SN1 reaction will be. Some students fall into the trap of thinking that the system with the less stable carbocation will react fastest, but they are forgetting that it is the generation of the carbocation that is rate determining.
Why 2 degree Carbocation is most stable?
First, it is true that tertiary carbocations are generally more stable than primary carbocations (and secondary carbocations) due to having more inductively donating alkyl groups. The hyperconjugative effect can also be invoked to explain the relative stabilities of primary, secondary, and tertiary carbocations.
What is Hyperconjugative effect?
Hyperconjugation effect is a permanent effect in which localization of σ electrons of C-H bond of an alkyl group directly attached to an atom of the unsaturated system or to an atom with an unshared p orbital takes place.
Why 3 degree alcohol is most reactive?
Tertiary alcohols are more reactive because the increased number of alkyl groups increases +I effect. So, the charge density on carbon atom increases and hence around oxygen atom. Hence, the cleavage of C−O bond becomes easier. So, a tertiary carbocation is formed which is more stable than secondary and primary.
Which alcohol is most acidic?
t-butanol