Answer:
Acid: HNO₂
Conjugate base: NO₂⁻
Base: HS⁻
Conjugate acid: H₂S
Explanation:
HNO₂ + HS⁻ → NO₂⁻ + H₂S
This is the reaction of nitrous acid with hydrosulfide, to generate nitrite and sulfide acid.
HNO₂ is a weak acid that release the proton to the HS⁻, so the HS⁻ is the base.
Proton that is caught by the HS⁻, produce the H₂S so, if the HS⁻ is the base (accepts a proton from other compound), the H₂S acts like the conjugate acid.
In nitrous acid, which is behaving as an acid (a weak one), the nitrite becomes in the conjugate strong base.
Answer:
HNO2 is the acid
NO2- is the conjugate base
Explanation:
In an acid base rxn, the proton donor is the acid while the proton receptor is the base. Same goes for conjugate acid and conjugate base.
