22 - 1AP Chemistry Lab Stoichiometry Brockport High School...

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1 AP Chemistry Lab Brockport High School (NY USA) Stoichiometry Mr Keefer Objective: Determine the mass relations in the chemical formula of potassium chlorate and use the results to analyze a potassium chlorate-potassium chloride mixture. Apparatus : balance, Bunsen burner, small test tubes, ring stand, clamp, goggles Chemicals : potassium chlorate, potassium chloride, manganese dioxide CAUTION: Potassium chlorate is a powerful oxidizing agent. It must not be mixed with reducing agents such as sulfur or paper. Any spillage should be flushed down the drain with plenty of water . Introduction Stoichiometry concerns mass relations in chemical formulas and chemical reactions. The word stoichiometry is derived from the Greek stoichein (“element”) and metron (“measure”). The quantitative analysis of chemical formulas and reactions begins with proper use of stoichiometric data. This lab will test your basic knowledge of this essential tool.
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