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Chem 141 Titration Lab Lecture Notes - University of …

Chem 141 Titration Lab Lecture Notes Samuel A. Abrash Q: What is the purpose of this experiment? The purpose of this experiment is to explore two techniques by which we answer the question: How much? One technique we ll be using to answer this is weighing. The other is Titration . Q: What do we have to weigh? You re going to weigh two different substances, NaOH, sodium hydroxide, on a top loading balance, and KHP, potassium hydrogen phthalate, on an analytical balance. Q: Two different balances? What s the difference? The analytical balance is a much more precise instrument, allowing mass determinations to g. The top loading balance typically allows masses to be determined to only g.

Titration is a way of determining how many moles of a chemical are in a solution phase sample by completely reacting it with another chemical. Q: What reaction do we do to determine the number of moles of NaOH? We’re reacting KHP with NaOH. The products are water and a …

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