2(f) Acids, alkalis and titrations

(f) Acids, alkalis and titrations (Material in blue is not required for Double Award Science)
2.28 describe the use of litmus, phenolphthalein and methyl orange to distinguish between acidic and alkaline solutions
2.29 understand how to use the pH scale, from 0–14, can be used to classify solutions as strongly acidic (0–3), weakly acidic (4–6), neutral (7), weakly alkaline (8–10) and strongly alkaline (11–14)
2.30 describe the use of universal indicator to measure the approximate pH value of an aqueous solution
2.31 know that acids in aqueous solution are a source of hydrogen ions and alkalis in a aqueous solution are a source of hydroxide ions
2.32 know that alkalis can neutralise acids
2.33C describe how to carry out an acid-alkali titration