Experiment: How Hard is Your Tap Water?
Students use conductometric titration and gravimetry to determine how much calcium carbonate is in a sample of tap water.
This lab is an introduction to methodological comparisons. Percent error is calculated for both gravimetry and titration. Samples of tap water from various locales are concentrated and analyzed for calcium content.
- Wireless Drop Counter
- Use the new Wireless Drop Counter for more efficient and accurate titration data. Conducting a titration has never been easier!
- Wireless Conductivity Sensor
- This waterproof sensor connects via Bluetooth® to measure both conductivity (ionic content in solution) and total dissolved solids.
This experiment can also be run with previous versions of PASCO sensors.