Experiment

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Submitted By Viridiana96
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Experiment 2: The Chemistry of Copper

I. Introduction

Copper is one of the most important metals because it is one of the best conductors of heat and electricity and an alloying element in bronze and brass. Copper is a soft metal with a bright orange-brown color in which is often called “copper color”. Also, copper is an element that is chemically combined with several of compounds in nature. Usually, these compounds are blue or blue-green depending on the copper(II) species. In this lab we are to observe many of the physical and chemical properties of copper by cycling copper via several chemical reactions; those reactions being, Oxidation Reduction, Acid-Base and Oxidation-Reduction and Single Displacement Reduction. Lastly, while performing a series of chemical processes, the mass of copper recovered should equal the original mass of copper from the beginning.

II. Data (Experimental Observations)

Part A: Oxidation Reduction Reaction
The weight of the copper starting material was 0.107g. After I weighted the copper, I wrapped the turning into a small ball and place it into a 150 mL beaker. Then, I measured 8 mL of 6 M nitric acid, HNO3, into a 10 ml graduated cylinder. Afterwards, I then slowly added the 6 M HNO3 into the beaker containing the copper. Then, I cover the beaker with a watch glass and observe the reaction. As I was observing the reaction, I noticed that the color of the copper solution went from a clear to a baby blue color. As the copper slowly continued to dissolved taking more than 10 minutes, it was then rapidly dissolved into a dark blue solution. As the copper dissolved, bubbles were being secreted causing the inside of the beaker to form a yellowish gas color due to the chemical reaction between the copper and the 6 M nitric acid.
Part B: Acid- Base and Double Displacement Reactions
The blue solution from part A was mixed with…...

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