IGCSE Chemistry Edexcel 4CH1

2: (f) Acids, alkalis and titrations

#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 i ndicator to measure the approximate pH value of anaqueous solution

#2.31

know that acids in aqueous solution are a source of hydrogen ions and alkalis in aaqueous 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

2
(e) Extraction and uses of metals
2
(g) Acids, bases and salt preparations
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