Chapter 13: Acids and Titrations

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15 Terms

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Metals
________ that are placed high on the reactivity series such as potassium and sodium are very dangerous and react explosively with acids.
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acid
When a(n) ________ neutralises a base the products are neutral.
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aqueous solution
An acid is a substance that forms ________ with a pH of less than 7.
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pH scale
The ________ is a measure of how acidic or alkaline a solution is.
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oxide
When an acid reacts with a(n) ________ or hydroxide, a neutralisation reaction occurs.
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Strong acids
________ dissociate fully in water to produce the maximum number of H+ ions.
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certain pH
An indicator is a dye that changed colour depending on whether its above or below a(n) ________.
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probe
The ________ is placed in the solution you are measuring and the pH is given on a digital display as a numerical value meaning its more accurate.
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Acids
________ will react with metal carbonates to form the corresponding metal salt, carbon dioxide and water.
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Acids + base
salt + water
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H+ + OH
- H20
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The same method works for adding an alkali to an acid
just swap around the liquids that go into the conical flask and burette
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This means if you had one mole of hydrochloric acid (HCl) molecules, they would all ‘split to form one mole of H+ ions and one mole of Cl
ions
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In fact, about only one per cent of ethanoic acid molecules split up to form H+ ions and CH3COO
ions at any one time
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These reactions are easily distinguishable from acid
metal oxide/hydroxide reactions due to the presence of effervescence caused by the carbon dioxide gas