1. What are 3 ways in which acids and bases can be defined? 2. What happens when
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Question
1. What are 3 ways in which acids and bases can be defined?
2. What happens when acids and bases are put into an aqueous solution?
3. How does the amount of dissociation of an acid relate to its overall strength and what is a specific example of this?
4. How is the concentration of H ions and OH ions related to the pH scale numerically and what is a specific example of this?
5. What specific anatomical facts relate to the condition of ulcers and heartburn?
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Explanation / Answer
1) In chemistry, acids and bases have been defined differently by three sets of theories. One is the Arrhenius definition, which revolves around the idea that acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (H+) ions while bases produce hydroxide (OH-) ions in solution. On the other hand, the Bronsted-Lowry definition defines acids as substances that donate protons (H+) whereas bases are substances that accept protons. Also, the Lewis theory of acids and bases states that acids are electron pair acceptors while bases are electron pair donors. Acids and bases can be defined by their physical and chemical observations.
Arrhenius Acids
An Arrhenius acid is a compound that increases the concentration of H+ ions that are present when added to water. These H+ ions form thehydronium ion (H3O+) when they combine with water molecules. This process is represented in a chemical equation by adding H2O to the reactants side.
Arrhenius Bases
An Arrhenius base is a compound that increases the concentration of OH- ions that are present when added to water.
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