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10 Cards in this Set
- Front
- Back
Define the term Hydronium ion
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The H₃O⁺ ion (combination of H⁺ ion and H₂O molecule)
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Define the term Arrhenius acid-base theory
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Acid - substance that produces H₃O⁺ ions in aqueous solution;
Base - substance that produces OH⁻ ions in aqueous solution. |
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Define the term Bronsted Lowry acid-base theory
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An acid is a proton donor
A base is a proton acceptor |
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Define the term pH
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pH is the general measure of acidity (the power of Hydrogen)
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Define the term Acid
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Substances which produce H⁺ ions when they dissolve in water.
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Define the term Base
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Substances which produce OH⁻ ions in aqueous solutions.
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Define the term Buffer
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A buffer is an amphoteric substance that mops up excess H⁺ or OH⁻ ions in solutions. They are very important in maintaining pH homeostasis (defend against fluctuations in pH).
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Define the term Salt
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Substances which when dissolved produce cations and anions neither of which are H⁺ nor OH⁻.
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Define the term Amphoteric
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Compounds that can act as either acids or bases
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Define the term Neutralisation Reaction
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A chemical reaction when an acid and a base interact to form a salt.
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