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Alchemy lab activity, a penny is turned golden due to a chemical reaction
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Student Name_______________________________ Partner’s Name______________________________ Date_______________________________________ General Chemistry I 2045C Alchemy Lab-SL Objective: In this lab, you will use qualitative analysis to decipher the truth behind an alchemist’s claim of being able to turn copper into silver, then into gold. Materials: Evaporating Dish Tongs Penny Zn Metal Bunsen Burner Distilled Water 3M NaOH Wire Gauze Ring Stand Iron Ring Salt Vinegar Small Beakers Triple Beam Balance Weighing Boat Background: Many of the process and substances that we know today were discovered by the alchemists. They discovered alcohol, hydrogen, phosphorous, and gun powder. They also discovered the processes of distillation, evaporation, and filtration. Alchemy was a strange mixture of science, medicine, magic, astrology, religion, and philosophy. One of the main goals was to change a base metal such as lead into gold. Producing gold would not only make them rich, but alchemists felt it would be a major step towards finding the elixir of life – the liquid that would make one immortal (or at least prolong life and give one good health). Eventually this was renamed the philosopher’s stone. Procedure: Part A Experiment:
Weight of Silver Coin ________________________ How does the silver coin feel?___________________________________________________ ___________________________________________________ Instructor’s Initials __________________ Weight of Gold Coin ___________________________
research. Do a google search for info on these reactions. Cite your sources properly and completely. You may NOT USE WIKI sources. Instructor’s Initials _____________________________