Neutralisation (OCR A-Level Chemistry A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
To how many decimal places can a pH meter record measurements during a titration?
To how many decimal places can a pH meter record measurements during a titration?
2 decimal places
When should base be added dropwise rather than in portions during a titration?
When should base be added dropwise rather than in portions during a titration?
When rapid pH changes are observed
By how many pH units can the pH change in the vertical section with less than of base?
By how many pH units can the pH change in the vertical section with less than of base?
8-10 units
What does the equivalence point represent in an acid-base titration?
What does the equivalence point represent in an acid-base titration?
When stoichiometric amounts have reacted
At what pH does the equivalence point occur for a strong acid-strong base titration?
At what pH does the equivalence point occur for a strong acid-strong base titration?
pH 7
What color does methyl orange display at its end point?
What color does methyl orange display at its end point?
Orange
What is the relationship between an indicator's and pH at its end point?
What is the relationship between an indicator's and pH at its end point?
equals pH
Over approximately how many pH units do most indicators undergo color changes?
Over approximately how many pH units do most indicators undergo color changes?
2 pH units
Which indicator is suitable for a weak acid-strong base titration like and NaOH?
Which indicator is suitable for a weak acid-strong base titration like and NaOH?
Phenolphthalein
Why is no standard indicator suitable for weak acid-weak base titrations?
Why is no standard indicator suitable for weak acid-weak base titrations?
There's no distinct vertical section