In this inquiry lab, students use a paper microfluidic device to measure the acetic acid content of vinegar.
By Marya Lieberman, Kimberley Frederick, Vincent Remcho, and Renee Cole
https://sites.google.com/view/micro-engaged-lab-learning/lab-materials/vinegar-titration-lab
Description: The titrator consists of 13 paper squares separated by hydrophobic wax barriers; the back of the titrator is also hydrophobic. Each square is loaded with…
This analysis is designed to replicate the classic acid-base determination of an unknown titration, but using household chemicals as the standard, titrant, indicator, and unknown. Notably this analysis employs a digital scale and syringes in the place of pipettes and burettes, making this a unique gravimetric approach to acid base titrations.