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What is the relationship between Arrhenius bases, which contain the Brnsted-Lowry base OH-, and their properties in chemical reactions?
Arrhenius bases, which include the Brnsted-Lowry base OH-, have properties that allow them to accept protons in chemical reactions. This ability to accept protons makes them important in reactions involving acids, as they can neutralize the acidic properties. In essence, Arrhenius bases containing OH- ions play a crucial role in balancing the pH levels in chemical reactions.
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What are the problems with Arrhenius theory?
Arrhenius theory only applies to reactions involving the transfer of ions in aqueous solutions, limiting its scope. It also does not account for non-aqueous solutions or reactions that do not involve ions. Additionally, Arrhenius theory oversimplifies the concept of acids and bases by focusing solely on the presence of hydrogen ions.
Could a bronsted-lowry acid not be an arrhenius acid?
Yes, a Brønsted-Lowry acid can be a different concept from an Arrhenius acid. While both concepts define acids based on their ability to donate protons, the Arrhenius definition is limited to substances that produce H+ ions in aqueous solutions, whereas the Brønsted-Lowry definition extends to reactions that occur in non-aqueous solvents.
Why is the arrhenius theory not satisfactory for acids and bases?
The Arrhenius theory is limited because it focuses only on substances that produce H+ or OH- ions in water. It does not account for molecules that can act as acids or bases without dissociating in water, or for reactions that occur in non-aqueous solvents. Additionally, the Arrhenius theory does not explain acid-base reactions that do not involve proton transfer.
How are rate constants temperature dependent in chemical reactions?
Rate constants in chemical reactions are temperature dependent because as temperature increases, the molecules move faster and collide more frequently, leading to a higher likelihood of successful reactions. This relationship is described by the Arrhenius equation, which shows that rate constants increase exponentially with temperature.
Why are the arrhenius definitions too restrictive?
The Arrhenius definitions are too restrictive because they only consider substances that ionize in water to produce H+ or OH- ions as acids or bases. This limited scope excludes other substances that can exhibit acidic or basic behavior in different solvents or conditions. Additionally, the Arrhenius definitions do not account for the concept of proton transfer in acid-base reactions beyond simple ionization reactions.
What relationship is described by the Arrhenius equation?
The Arrhenius equation describes a number of temperature dependent chemical reactions. These comprise not just the forward and reverse reactions, but also other reactions that are thermally influenced such as diffusion processes.
What are the problems with Arrhenius theory?
Arrhenius theory only applies to reactions involving the transfer of ions in aqueous solutions, limiting its scope. It also does not account for non-aqueous solutions or reactions that do not involve ions. Additionally, Arrhenius theory oversimplifies the concept of acids and bases by focusing solely on the presence of hydrogen ions.
Could a bronsted-lowry acid not be an arrhenius acid?
Yes, a Brønsted-Lowry acid can be a different concept from an Arrhenius acid. While both concepts define acids based on their ability to donate protons, the Arrhenius definition is limited to substances that produce H+ ions in aqueous solutions, whereas the Brønsted-Lowry definition extends to reactions that occur in non-aqueous solvents.
Why is the arrhenius theory not satisfactory for acids and bases?
The Arrhenius theory is limited because it focuses only on substances that produce H+ or OH- ions in water. It does not account for molecules that can act as acids or bases without dissociating in water, or for reactions that occur in non-aqueous solvents. Additionally, the Arrhenius theory does not explain acid-base reactions that do not involve proton transfer.
How are rate constants temperature dependent in chemical reactions?
Rate constants in chemical reactions are temperature dependent because as temperature increases, the molecules move faster and collide more frequently, leading to a higher likelihood of successful reactions. This relationship is described by the Arrhenius equation, which shows that rate constants increase exponentially with temperature.
Why are the arrhenius definitions too restrictive?
The Arrhenius definitions are too restrictive because they only consider substances that ionize in water to produce H+ or OH- ions as acids or bases. This limited scope excludes other substances that can exhibit acidic or basic behavior in different solvents or conditions. Additionally, the Arrhenius definitions do not account for the concept of proton transfer in acid-base reactions beyond simple ionization reactions.
What is the classification of Ba(OH)2 as an Arrhenius base and how does it contribute to chemical reactions?
Ba(OH)2 is classified as a strong Arrhenius base. It dissociates completely in water to release hydroxide ions, which can react with acids to form water and a salt. This contribution to chemical reactions helps neutralize acids and regulate pH levels.
Is it right all Arrhenius bases are Brownsted Lowry bases?
No, not all Arrhenius bases are Brønsted-Lowry bases. Arrhenius bases are defined as substances that produce hydroxide ions (OH-) when dissolved in water, whereas Brønsted-Lowry bases are substances that accept protons (H+ ions) in a chemical reaction. Some substances that meet the Arrhenius definition may not meet the Brønsted-Lowry definition if they do not involve proton transfer reactions.
How did svante arrhenius chane the world?
Svante Arrhenius is known for his work in establishing the theory of electrolytic dissociation, which laid the foundation for modern understanding of how ions behave in solution. This work helped to advance the field of physical chemistry, particularly in the understanding of reactions in aqueous solutions. Arrhenius' discoveries are essential to various fields, including biology, environmental science, and material science.
An arrhenius acid is an bronsted lowry acid bt an arrhenius base is NT a bronsted lowry base?
Yes, that's correct. An Arrhenius acid releases H+ ions in water, making it a Bronsted-Lowry acid. On the other hand, an Arrhenius base releases OH- ions in water but may not necessarily donate or accept protons in other reactions, so it is not always considered a Bronsted-Lowry base.
Describe the major limitation of the Arrhenius theory of acids and bases?
Arrhenius's theory was limited by the fact that hydrochloric acid is neutralised by both sodium hydroxide solution and ammonia solution. In both cases, you get a colourless solution which you can crystallise to get a white salt - either sodium chloride or ammonium chloride.
What are the Categories of Arrhenius acid and Arrhenius base?
What is Arrhenius concept of acid and base?The universal aqueous acid-base definition of the Arrhenius concept is described as the formation of water from hydrogen and hydroxide ions, or hydrogen ions and hydroxide ions from the dissociation of an acid and base in aqueous solution:H+ (aq) + OH− (aq) H2O(In modern times, the use of H+ is regarded as a shorthand for H3O+, since it is now known that the bare proton H+ does not exist as a free species in solution.)This leads to the definition that in Arrhenius acid-base reactions, a salt and water is formed from the reaction between an acid and a base. In other words, this is a neutralization reaction.acid+ + base− → salt + water
