CHE 2B Lecture Notes - Lecture 1: Calcium Oxalate, Equivalence Point, Ph Meter

• School: UC-Davis
• Department: Chemistry
• Course: CHE 2B
• Professor: N G Terry

Document Summary

The first part of the experiment was to determine the csp of the calorimeter we used, because this value was needed in all subsequent experiments. In this experiment it was observed that for each trial, the initial temp. of water kept increasing. This may have been due to some warm water that was left in the cup from the previous trial. In part 2, we determined the csp of lead metal. The percentage error was 1. 56%, indicating that our experimental value is close to the theoretical value. Our value was lower than the theoretical value meaning it took less heat to raise 1 g of pb by 1 c. This may have been due to overestimating the final temperature, resulting in a large larger t. A source of error for the hfus experiment was that by the time we had added some ice to the calorimeter, part of it was already melted.