Question on: SS2 Chemistry - Acids, Bases, and pH
In an acid-base titration, a burette is filled with a standardised solution of a strong base (NaOH). The analyte is a solution of hydrochloric acid (HCl) of unknown concentration. What is the suitable indicator for this titration?
View related lesson
A
Phenolphthalein
B
Bromothymol blue
C
Methyl orange
D
Litmus
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Correct Option: A
In the given acid-base titration scenario, where a strong base (NaOH) is being titrated against hydrochloric acid (HCl), the suitable indicator is phenolphthalein. Phenolphthalein is commonly used for strong acid-strong base titrations and undergoes a colour change from colourless to pink at a pH range of approximately 8.2 to 10.0, which is suitable for the equivalence point of the titration.
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