Acids and Redox

Acid- Base Titrations

Titrations: Technique used to accurately measure the volume of one solution that reacts exactly with another solution. Used to find concentration of solution, identify unknown chemicals and find purity of substances. • Volumetric Flask: They make up standard solutions...

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Redox

Oxidation Number: Aka oxidation state. Oxidation number sign placed before the number, unlike ionic. • Rules in Most Cases: - Elements- Oxidation number is zero. Even Cl2. - Most Metals- Oxidation number of group 1, 2 and 3 same as ionic charge, +1 or +2 or +3. Look...

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Acids, Bases and Neutralisation

Acids: Solid H2SO4 not an acid, when aqueous it is an acid. They ionise into (2)H + and SO4 2 . Need to know acids- HCl, H2SO4, H3PO4, HNO3 and CH3COOH. • Strong Acid: When dissolved in water, a strong acid completely dissociates in aqueous solution, releasing H + . •...

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