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Questions and Answers
In pure water at 25°C, what is the relationship between [H+] and [OH-]?
In pure water at 25°C, what is the relationship between [H+] and [OH-]?
What is the ionization constant of water at 25°C?
What is the ionization constant of water at 25°C?
Which type of substance is considered an acid in the Arrhenius Theory?
Which type of substance is considered an acid in the Arrhenius Theory?
What is the relationship between Ka, Kb, and Kw for a weak electrolyte?
What is the relationship between Ka, Kb, and Kw for a weak electrolyte?
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According to the Bronsted-Lowry Theory, which of the following best defines an acid?
According to the Bronsted-Lowry Theory, which of the following best defines an acid?
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What is the characteristic of an acid based on its pH value?
What is the characteristic of an acid based on its pH value?
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According to the Lewis Theory, which of the following best defines a base?
According to the Lewis Theory, which of the following best defines a base?
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What is the characteristic of a base based on its effect on litmus paper?
What is the characteristic of a base based on its effect on litmus paper?
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Which of the following best describes a strong acid?
Which of the following best describes a strong acid?
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What is used to express the concentration of hydronium ions in a solution?
What is used to express the concentration of hydronium ions in a solution?
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Study Notes
Properties of Water
- In pure water at 25°C, [H+] equals [OH-], both at a concentration of 1.0 x 10^-7 M.
- The ionization constant of water (Kw) at 25°C is 1.0 x 10^-14.
Arrhenius Theory
- An acid in the Arrhenius Theory is a substance that increases the concentration of H+ ions in aqueous solution.
Bronsted-Lowry Theory
- According to Bronsted-Lowry Theory, an acid is defined as a proton donor, meaning it can donate a hydrogen ion (H+) to another substance.
Acid Characteristics
- An acid typically has a pH value less than 7, indicating a higher concentration of H+ ions.
Lewis Theory
- In the Lewis Theory, a base is best defined as a substance that can donate an electron pair.
Base Characteristics
- A base turns litmus paper blue, indicating its basic nature when in solution.
Strong Acids
- A strong acid is characterized by its complete ionization in water, resulting in a high concentration of H+ ions.
Concentration Measurement
- The concentration of hydronium ions (H3O+) in a solution is often expressed using the pH scale.
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Description
Test your knowledge of concentrations, molarities, and ionization constants. Explore concepts such as acidic and basic solutions, self-ionization of water, and the mole ratio of dissociation reactions.
