Advanced Chemistry Through Inquiry Teacher Guide

(PS-2828)

Teacher manual for AP* and Advanced Chemistry labs. Has both the printed version and a flash drive with teacher tips, a PDF of teacher version and editable Word student version.

Gravimetric Analysis of a Precipitate

Lab Summary

Chemists can find the identity of unknown compounds using techniques such as qualitative analysis, chromatography, spectroscopy, and gravimetric analysis. Gravimetric analysis, which uses a balance to determine the mass of a substance, is one of the oldest and most accurate quantitative methods for determining the amount of an analyte in a sample.

Theory

Through gravimetric analysis, students identify an unknown alkali metal carbonate.

Method

The student is able to select and apply mathematical relationships to mass data in order to justify a claim regarding the identity and/or estimated purity of a substance. The student can design, and/or interpret data from, an experiment that uses gravimetric analysis to determine the concentration of an analyte in a solution.

The Associated Bundle:

Interface Required

This experiment may require software and an interface for data collection.