Required Practical: Strong Acid & Strong Alkali Titration (OCR GCSE Chemistry A (Gateway Science Suite)): Flashcards
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Volume of HCl measured in the titration
Volume of HCl measured in the titration
25 cm³
Indicator used in HCl/NaOH titration
Indicator used in HCl/NaOH titration
Phenolphthalein
Phenolphthalein colour in acidic conditions
Phenolphthalein colour in acidic conditions
Colourless
Phenolphthalein colour in alkaline conditions
Phenolphthalein colour in alkaline conditions
Pink
What to rinse burette with before filling
What to rinse burette with before filling
NaOH solution
Purpose of white tile under conical flask
Purpose of white tile under conical flask
To see colour change more clearly
Definition of titre
Definition of titre
Volume of NaOH used
Minimum number of concordant titres needed
Minimum number of concordant titres needed
Three
Range for concordant titres
Range for concordant titres
Within 0.20 cm³ of each other
Colour indicating titration endpoint
Colour indicating titration endpoint
Permanent pink colour
Correlation shown on HCl conc. vs NaOH vol. graph
Correlation shown on HCl conc. vs NaOH vol. graph
Positive correlation
Shape of HCl conc. vs NaOH vol. graph
Shape of HCl conc. vs NaOH vol. graph
Straight line
Neutralisation definition
Neutralisation definition
Acid + alkali → water + salt