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.
Preview DownloadStudent Files
| 03_ACI_How_Hard_Is_Your_Tap_Water_S.docx | 1.39 MB | |
| 03_ACI_How_Hard_Is_Your_Tap_Water_S.pdf | 1.36 MB |
Teacher Files
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Standards Correlations
| IB Topics | AP Topics |
|---|---|
| 1.4 | SPQ-1.A; SPQ-2.A; TRA-1.C; SPQ-3.C; SPQ-4.A |
Featured Equipment
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.
Many lab activities can be conducted with our Wireless, PASPORT, or even ScienceWorkshop sensors and equipment. For assistance with substituting compatible instruments, contact PASCO Technical Support. We're here to help.
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