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Essay text:
A post-1982 penny was weighed. Approximately 15 mL of 10 HNO3 was placed into a beaker. The beaker was placed under the fume hood and the penny was added to the beaker of HNO3. During the reaction it was observed that the solution began to bubble, the solution turned green, white foam formed, copper smoke was emitted, and toward the end the solution began to turn blue. After the penny reaction reached completion when the penny fully dissolved, the solution was next diluted to 25.00 mL in a 25 mL volumetric flask. Four dilutions of the stock solution were made with the use of deionized water (0...
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