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Questions and Answers
Salts that contain the cation of a strong base and an anion that is the conjugate base of a weak acid are?
Salts that contain the cation of a strong base and an anion that is the conjugate base of a weak acid are?
- Strong
- Basic (correct)
- Acidic
- Neutral
Salts that contain cations that are the conjugate acid of a weak base and an anion of a strong acid are?
Salts that contain cations that are the conjugate acid of a weak base and an anion of a strong acid are?
- Neutral
- Acidic (correct)
- Basic
- Strong
Every anion can potentially act as a base.
Every anion can potentially act as a base.
False (B)
Is NO3- a weak base or pH-neutral?
Is NO3- a weak base or pH-neutral?
Is NO2- a weak base or pH-neutral?
Is NO2- a weak base or pH-neutral?
Is C2H3O2- a weak base or pH-neutral?
Is C2H3O2- a weak base or pH-neutral?
Some cations can potentially be acidic.
Some cations can potentially be acidic.
Cations of small, highly charged metals are always acidic.
Cations of small, highly charged metals are always acidic.
Is LiOH a strong or weak base?
Is LiOH a strong or weak base?
Is NaOH a strong or weak base?
Is NaOH a strong or weak base?
Is KOH a strong or weak base?
Is KOH a strong or weak base?
Is Sr(OH)2 a strong or weak base?
Is Sr(OH)2 a strong or weak base?
Is Ca(OH)2 a strong or weak base?
Is Ca(OH)2 a strong or weak base?
Is Ba(OH)2 a strong or weak base?
Is Ba(OH)2 a strong or weak base?
Is CO3 a strong or weak base?
Is CO3 a strong or weak base?
Is CH3NH2 a strong or weak base?
Is CH3NH2 a strong or weak base?
Is C2H3NH2 a strong or weak base?
Is C2H3NH2 a strong or weak base?
Is C5H5N a strong or weak base?
Is C5H5N a strong or weak base?
Is HCO3 a strong or weak base?
Is HCO3 a strong or weak base?
Is C6H5NH2 a strong or weak base?
Is C6H5NH2 a strong or weak base?
Is NO2 acidic, basic, or neutral?
Is NO2 acidic, basic, or neutral?
Is Fe3+ acidic, basic, or neutral?
Is Fe3+ acidic, basic, or neutral?
Is NO3- acidic, basic, or neutral?
Is NO3- acidic, basic, or neutral?
Is ClO- acidic, basic, or neutral?
Is ClO- acidic, basic, or neutral?
Is Ca2+ acidic, basic, or neutral?
Is Ca2+ acidic, basic, or neutral?
Is I- acidic, basic, or neutral?
Is I- acidic, basic, or neutral?
Is Na+ acidic, basic, or neutral?
Is Na+ acidic, basic, or neutral?
Is NH4+ acidic, basic, or neutral?
Is NH4+ acidic, basic, or neutral?
Is NaHCO3 acidic, basic, or neutral?
Is NaHCO3 acidic, basic, or neutral?
Is CH3Ch2NH3Cl acidic, basic, or neutral?
Is CH3Ch2NH3Cl acidic, basic, or neutral?
Is KNO3 acidic, basic, or neutral?
Is KNO3 acidic, basic, or neutral?
Is Fe(NO3)3 acidic, basic, or neutral?
Is Fe(NO3)3 acidic, basic, or neutral?
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Study Notes
Salts and Acids
- Salts with strong base cations and conjugate weak acid anions are classified as basic.
- Salts containing conjugate acids of weak bases and strong acid anions are termed acidic.
Anions as Bases
- Every anion acts as the conjugate base of an acid, indicating potential as a base, although not all engage in this role.
- NO3⁻ is pH-neutral, derived from the strong acid HNO3.
- NO2⁻, as the conjugate base of the weak acid HNO2, functions as a weak base.
- C2H3O2⁻ is a weak base, originating from the weak acid HC2H3O2.
Cations and Acidity
- Certain cations can be interpreted as the conjugate acids of weak bases, positioning them as potentially acidic.
- Cations from small, highly charged metals exhibit weak acidity, while alkali metal and alkaline earth metal cations are considered pH neutral due to hydration.
Classification of Bases
- LiOH, NaOH, KOH, Sr(OH)2, Ca(OH)2, and Ba(OH)2 are classified as strong bases.
- CO3, CH3NH2, C2H3NH2, C5H5N, HCO3, and C6H5NH2 are recognized as weak bases.
Acidic, Basic, or Neutral Classifications
- NO2 is classified as basic.
- Fe³⁺ is acidic.
- NO3⁻, Ca²⁺, I⁻, and Na⁺ are neutral.
- ClO⁻ is categorized as basic.
- NH4⁺ is classified as acidic.
Salt Classifications
- NaHCO3 is classified as basic.
- CH3Ch2NH3Cl is classified as acidic.
- KNO3 is recognized as neutral.
- Fe(NO3)3 is categorized as acidic.
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