What This Document Is
This document is a lab writing activity completed by a group of students – Christian Ramirez, Natalie Ramirez, Ricardo Pelayo, Jacob Flores, and HoiChing Wong – for their General Chemistry II (CHM 116) course at Arizona State University. It details an experiment focused on determining the effectiveness of antacid tablets using titration techniques. The lab was performed on Tuesdays from 2:30 PM to 4:20 PM under the guidance of TA JianHeng Wen.
Why This Document Matters
This assignment is intended for students enrolled in CHM 116 as a record of their experimental process and findings. It serves as a graded component of the course, demonstrating their understanding of titration, pH measurement, and acid-base neutralization. It’s used to assess a student’s ability to apply laboratory skills and communicate scientific results.
Common Limitations or Challenges
This document represents a single group’s execution of the lab. It does not serve as a comprehensive guide to titration or antacid analysis. It is a specific instance of the experiment, and results will vary.
What This Document Provides
The full document includes an introduction to the importance of antacid effectiveness, the chemical reactions involved in neutralization (specifically with calcium carbonate in Tums), a description of the experimental procedures used to determine pH with various indicators and standardize a sodium hydroxide (NaOH) solution, and detailed instructions for using a pH meter and associated software. It also contains the group’s raw data and observations from Part One (pH measurements of household chemicals) and Part Two (titration to standardize NaOH). This preview only provides a summary of the document’s purpose and scope; the full experimental results, data analysis, and conclusions are not included here.
