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.

Grade Level: Advanced Placement • College

Subject: Chemistry

Student Files

	How Hard is Your Tap Water?	1.11 MB
	How Hard is Your Tap Water?	1.08 MB
	How Hard is Your Tap Water?	21.07 KB

Teacher Files

Download All

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.

Support

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.
Copyright © 2020 PASCO

Copyright Disclaimer: Section 107 of the Copyright Act of 1976 makes allowance for “fair use” for purposes of teaching, scholarship, education and research. Reproduction under any other circumstances, without the written consent of PASCO, is prohibited.

Source Collection: Lab #03