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Acid-Base Properties of Salts
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Acid-Base Properties of salts: salts - Dissociation Equations: HCI → H+ + CIT conj. base a lot Strong acid very little HCN → H* + CN- conj. base very little Strong acid a lot . . Strong NO₂ Nat NH4* CIO4 weak - - Anion is the conjugate of a weak acid, the anion is basic, making pH more basic cation is the conjugate of a weak base, the cation is acidic, making pH more acidic group I and I ions = strong ion = strong base > neutral cation, neutral pH - Some conj. bases are strong & act like a base doesn't do a good job@accepting H* ↳because very little HCI Acidic, Basic, or Neutral? basic neutral acidic neutral conjugate of HC104 CH3NH3* acid not in group 1 or 2 considered neutral (doesn't affect PH) good job accepting H+ Strong base (in comparison to H₂O) can cause increase in pH conjugate of HNO3 . . KNO2 ↳ K+ & NO₂ K ↳ Nat neutral basic R (won't change pH) NaNO3 neutral NH4 CI ↳NH4+ acidic NH4CN b NHU* CH3NH3C104 CH3NH3+ acidic basic NO3 neutral ka CI neutral strength کہ CN acidic basic kb C104 neutral neutral NH3 Kb = 1.8 × 10-5 Ka (1.8 x 10-5) = Kw ka= 5 6x10-10 weaker acidic → acidic →basic Strength equation → Kakb= kw only for conjugates HCN Kq = 6.2 x 10-10 ka (6.2x 10-10) = kw Ka 1.6x10-5 Stronger
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Understanding Acid-Base Behavior in Salts: A Chemistry Guide
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Chemistry
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This guide is a comprehensive resource for high school chemistry students, focusing on the acid-base properties of salts. It offers a clear, straightforward approach to understanding how salts behave in solution and their resulting pH levels. The notes are designed to enhance comprehension of this key concept in chemistry. Included in the guide: - A detailed explanation of how to estimate the pH of salts based on the dissociation of their cations and anions. - Information on what constitutes a neutral solution of a salt in water and how to identify such solutions. - Insights into the formation of salts as a product of reactions between acids and bases. - Definitions and examples of base salts, with a focus on their chemical properties. - Guidelines on how to classify salts as acidic, basic, or neutral, providing a clear understanding of their chemical nature. - Exercises on classifying compounds as acids, bases, salts, or other, enhancing analytical skills in chemistry. - A discussion on the ionization of salts in water, exploring the solubility and dissociation processes. - Tips on how to determine whether a salt is acidic or basic, using chemical knowledge and practical methods. - A list of neutral salts, serving as a reference for understanding salt neutrality. - Techniques for predicting the qualitative acid-base properties of salts, aiding in anticipatory analysis of chemical behavior. This guide is crafted to provide students with a solid foundation in understanding the acid-base properties of salts, making it an invaluable study aid for mastering this aspect of chemistry.
416
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Understanding Acid-Base Behavior in Salts: A Chemistry Guide
Chemistry
Study note
Comments (1)
This guide is a comprehensive resource for high school chemistry students, focusing on the acid-base properties of salts. It offers a clear, straightforward approach to understanding how salts behave in solution and their resulting pH levels. The notes are designed to enhance comprehension of this key concept in chemistry. Included in the guide: - A detailed explanation of how to estimate the pH of salts based on the dissociation of their cations and anions. - Information on what constitutes a neutral solution of a salt in water and how to identify such solutions. - Insights into the formation of salts as a product of reactions between acids and bases. - Definitions and examples of base salts, with a focus on their chemical properties. - Guidelines on how to classify salts as acidic, basic, or neutral, providing a clear understanding of their chemical nature. - Exercises on classifying compounds as acids, bases, salts, or other, enhancing analytical skills in chemistry. - A discussion on the ionization of salts in water, exploring the solubility and dissociation processes. - Tips on how to determine whether a salt is acidic or basic, using chemical knowledge and practical methods. - A list of neutral salts, serving as a reference for understanding salt neutrality. - Techniques for predicting the qualitative acid-base properties of salts, aiding in anticipatory analysis of chemical behavior. This guide is crafted to provide students with a solid foundation in understanding the acid-base properties of salts, making it an invaluable study aid for mastering this aspect of chemistry.
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Acid-Base Properties of salts: salts - Dissociation Equations: HCI → H+ + CIT conj. base a lot Strong acid very little HCN → H* + CN- conj. base very little Strong acid a lot . . Strong NO₂ Nat NH4* CIO4 weak - - Anion is the conjugate of a weak acid, the anion is basic, making pH more basic cation is the conjugate of a weak base, the cation is acidic, making pH more acidic group I and I ions = strong ion = strong base > neutral cation, neutral pH - Some conj. bases are strong & act like a base doesn't do a good job@accepting H* ↳because very little HCI Acidic, Basic, or Neutral? basic neutral acidic neutral conjugate of HC104 CH3NH3* acid not in group 1 or 2 considered neutral (doesn't affect PH) good job accepting H+ Strong base (in comparison to H₂O) can cause increase in pH conjugate of HNO3 . . KNO2 ↳ K+ & NO₂ K ↳ Nat neutral basic R (won't change pH) NaNO3 neutral NH4 CI ↳NH4+ acidic NH4CN b NHU* CH3NH3C104 CH3NH3+ acidic basic NO3 neutral ka CI neutral strength کہ CN acidic basic kb C104 neutral neutral NH3 Kb = 1.8 × 10-5 Ka (1.8 x 10-5) = Kw ka= 5 6x10-10 weaker acidic → acidic →basic Strength equation → Kakb= kw only for conjugates HCN Kq = 6.2 x 10-10 ka (6.2x 10-10) = kw Ka 1.6x10-5 Stronger
Acid-Base Properties of salts: salts - Dissociation Equations: HCI → H+ + CIT conj. base a lot Strong acid very little HCN → H* + CN- conj. base very little Strong acid a lot . . Strong NO₂ Nat NH4* CIO4 weak - - Anion is the conjugate of a weak acid, the anion is basic, making pH more basic cation is the conjugate of a weak base, the cation is acidic, making pH more acidic group I and I ions = strong ion = strong base > neutral cation, neutral pH - Some conj. bases are strong & act like a base doesn't do a good job@accepting H* ↳because very little HCI Acidic, Basic, or Neutral? basic neutral acidic neutral conjugate of HC104 CH3NH3* acid not in group 1 or 2 considered neutral (doesn't affect PH) good job accepting H+ Strong base (in comparison to H₂O) can cause increase in pH conjugate of HNO3 . . KNO2 ↳ K+ & NO₂ K ↳ Nat neutral basic R (won't change pH) NaNO3 neutral NH4 CI ↳NH4+ acidic NH4CN b NHU* CH3NH3C104 CH3NH3+ acidic basic NO3 neutral ka CI neutral strength کہ CN acidic basic kb C104 neutral neutral NH3 Kb = 1.8 × 10-5 Ka (1.8 x 10-5) = Kw ka= 5 6x10-10 weaker acidic → acidic →basic Strength equation → Kakb= kw only for conjugates HCN Kq = 6.2 x 10-10 ka (6.2x 10-10) = kw Ka 1.6x10-5 Stronger
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Knowunity is the # 1 ranked education app in five European countries
Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.
Still not sure? Look at what your fellow peers are saying...
iOS User
I love this app so much [...] I recommend Knowunity to everyone!!! I went from a C to an A with it :D
Stefan S, iOS User
The application is very simple and well designed. So far I have found what I was looking for :D
SuSSan, iOS User