Part of NCSSM CORE collection: This is the student document for the bleach analysis lab.
This lesson reviews how to determine empirical and molecular formulas based on experimental data and percent composition values. Ten practice problems are included. Two additional hands-on laboratory investigations are also included: "Empirical Formula of Magnesium Oxide," where students will heat magnesium ribbon in the presence of air to form magnesium oxide and water and use their data to calculate the mole ratio for magnesium and oxygen, and "Water of Hydration Lab," where students will determine the hydration number and empirical formula of copper(II) sulfate hydrate.
In this inquiry-based activity, students determine the empirical formula of magnesium sulfate hydrate.
In this lab activity, students will react an acid and a metal to produce hydrogen gas and metal salt. They will then determine the amount of gas produced at room conditions and then use the combined gas law to prodeict how much gas would be produced at STP.
In this peer-assisted chemistry mini-unit, student will use fundamental chemistry knowledge along with their logic and problem solving skills to interpret mass spectrometry graphs. Via an incremental, game-like series of lesson, students will learn to determine one or more possible formulas for an organic molecule represented on the output graph of a mass spectrometer. This is an excellent review unit as students will calculate formula mass for molecules containing isotopes, read data tables, interpret graphs, and draw structural formulas. Because of the importance of identifying chemicals for industrial and commercial use, such as drugs, this unit also demonstrates to students a practical, real-world, application for the chemistry concepts they are learning in the classroom.
In this lab activity, students will investigate a single replacement reaction while also determining mole ratios to determine percent yields.
In this lab activity, students mix sodium bicarbonate and acetic acid to generate carbonic acid and sodium acetate. Then they will use data from the experiment to complete stoichiometric calculations.
Students will calculate Empirical and Molecular Formulas while trying to solve a murder mystery