In a volumetric experiment involving the addition of hydrochloric acid to 25.0 cm3 of aqueous sodium hydroxide it is necessary to determine when the reaction is just complete. Which piece of apparatus could be used to determine the end-point of the reaction
Direct Answer
Option D: thermometer
In an acid-base neutralization, such as HCl and NaOH, the reaction is exothermic. A thermometer can detect the maximum temperature reached at the equivalence point, indicating the reaction's completion. This thermometric titration method is a valid technique for determining the end-point.
All Options
Detailed Explanation & Context
In an acid-base neutralization, such as HCl and NaOH, the reaction is exothermic. A thermometer can detect the maximum temperature reached at the equivalence point, indicating the reaction's completion. This thermometric titration method is a valid technique for determining the end-point.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Chemical Tanker Cargo Operations (CHEMCO).
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