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One method for protecting metals against corrosion is to connect the metal directly to a "sacrificial anode". This is the method used to protect pipelines and ships hulls. Which of the following metals would you consider the best candidate for a sacrificial anode for a ship's hull? The hull is steel (which is mostly iron).
Dulong and Petit's Law: We Should Not Ignore Its ImportanceMary Laing and Michael Laing This article describes two student exercises: the determination of the specific heat of a metal and hence its atomic weight and a graphical study of specific heat versus atomic weight for different groups of metals and the confirmation of Dulong and Petit's law. Laing, Mary; Laing, Michael. J. Chem. Educ.2006, 83, 1499.
Calorimetry / Thermochemistry |
Heat Capacity |
Metals |
Periodicity / Periodic Table
Metallurgy in the Laboratory: Preparation of Pure AntimonyBrooke L. O'Klatner and Daniel Rabinovich The preparation of pure antimony is readily accomplished on a laboratory scale by the high-temperature reduction of antimony trioxide with potassium cyanide. The product is obtained in almost quantitative yield (up to 98%) using a procedure that is simple, inexpensive, and quick. O'Klatner, Brooke L.; Rabinovich, Daniel. J. Chem. Educ.2000, 77, 251.
Burning Magnesium (GCMP)David M. Whisnant Burning Magnesium: this is a resource in the collection "General Chemistry Multimedia Problems". In this problem we will look at the reactions of two elements with oxygen in air. We will begin by observing the reaction of magnesium metal with oxygen when the metal is heated in air. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Metals
Fireworks (GCMP)David M. Whisnant Fireworks: this is a resource in the collection "General Chemistry Multimedia Problems". In this problem we will study the colors produced by metal salts in flames. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Metals
Metals 1 (GCMP)David M. Whisnant Reactions of Metals 1: this is a resource in the collection "General Chemistry Multimedia Problems". In this problem we will observe the reactions of different metals (Zn, Ni, Mn, Fe) with iodine. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
