Acid-Base Titration Analysis
In a titration of hydrochloric acid with sodium hydroxide, a student expects to use 50 mL of the NaOH solution but finds that 75 mL is required to reach the endpoint. The student concludes that the actual concentration of the NaOH solution is lower than the assumed concentration. What mistake, if any, did the student make in this analysis?
A
They incorrectly calculated the molarity of the NaOH solution.
B
They used an incorrect indicator for the titration endpoint.
C
They did not make a mistake; their conclusion about the NaOH concentration is correct.
D
They forgot to account for the volume of HCl in the solution.
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