Experiment And Techniques: Copper Chloride And Sodium A

In the hood, place the copper wire in 10mL of nitric acid and wait for it to dissolve. Afterwards, add 100mL of deionized water to the solution and boil the solution, so all the nitrogen oxides are removed. Place the solution to a 250.0mL volumetric flask and add deionized water to the flask until the solution is 250.0mL. When the solution in the flask is at 250.0mL place the solution in a clean plastic bottle. Now cut a penny into four pieces, and measure the mass of all the pieces together. Go back to the hood, and place the pieces of the penny into a 250mL beaker. Afterwards, add 20mL of concentrated hydrochloric acid. Wait for the hydrochloric acid to dissolve the zinc core. When the zinc has dissolved, filter the solution through the filter paper, and place the copper metal pieces into a clean 150mL beaker. In the hood, place 4mL of concentrated nitric acid in the beaker, and when the copper dissolves add, one drop at a time, 30mL of 6 M ammonium hydroxide to neutralize the nitric acid. Transfer the copper/ammonia solution to a 100.00mL volumetric flask. Prepare four different calibration

Used stirring rods to completely remove copper from that wire. And then completed the removal of copper using 5 drops of 6M HCl, adding it onto copper. There will produced copper in a solution. Connected Buchner flask to the vacuum line and place filter paper in it to completely washed off the copper. Then, add 95% ethanol to copper and leave it for 1 min and turned section back for 5 mins. Measured mass of clean, dry watch glass. Transfer copper to watch glass and dry it under heat lamp for 20 mins, allowed it to cool to room temperature and then accurately determine its mass.

Obtain a 50 mL beaker for the experiment. In the first part of the experiment, you dissolve the zinc core of a penny and leave the copper covering intact by putting four notches in

13) When the tray is thoroughly dry, determine its mass. Record the mass in the data table. You have to wait until day three to weigh the copper.

Introduction: The purpose of this lab was to learn the proper techniques of roasting, smelting, and volumetric analysis to determine an unknown sample of copper mineral.

Procedure- The first thing you should do is to measure the mass of the empty crucible and then record the mass of it. Then you should fill the crucible with about 3 scoops of the hydrate and then record the mass of it. You should then heat up the hydrate filled crucible with the burner for about 10mins to allow all the water to be able to be evaporated. After that, allow the crucible to cool off for a little and then mass the crucible with dehydrated solid. Then record that mass and then figure out the formula of the hydrate.

XIII. Carefully remove the copper metal from the filter paper onto the watch glass. (with a spatula) Place a 400 ml beaker on a hot plate contained with water. Carefully place the watch glass before the water boils to dry the copper metal. (Use the tongs to handle the hot watch glass)

The lab performed required the use of quantitative and analytical analysis along with limiting reagent analysis. The reaction of Copper (II) Sulfate, CuSO4, mass of 7.0015g with 2.0095g Fe or iron powder produced a solid precipitate of copper while the solution remained the blue color. Through this the appropriate reaction had to be determined out of the two possibilities. Through the use of a vacuum filtration system the mass of Cu was found to be 2.1726g which meant that through limiting reagent analysis Fe was determined to be the limiting reagent and the chemical reaction was determined to be as following:-

Place the covered crucible into a pipestem triangle, heating gently for 2 minutes. Using a wire tilt the cover to allow air to enter the crucible. Strongly heat the crucible for 10 minutes.

8) Measure the mass of the crucible and Magnesium Oxide; record in your data table.

First we measured the weight of the crucible, the mass of the crucible was 12.6802g. Next we added 1.9981 grams of sodium bicarbonate(NaHCO3). The crucible with 1.9981 grams of sodium bicarbonate was 14.6783g. After that we heated the sodium bicarbonate for eight minutes. While the sodium bicarbonate was heating

Copper is an essential mineral for all of life, but it also has the ability to kill. Copper and 354 of its alloys are the only metals officially registered with the US EPA as being antimicrobial and antibacterial. This killing capability is called an “oligodynamic effect” which was discovered in 1893. Copper metal ions have a toxic effect on living cells such as algae, molds, spores, fungi and microorganisms. It is far more poisonous to bacteria than other materials, such as stainless-steel, aluminum or plastic.

Copper does not decompose in the environment, and because of this it can accumulate in plants and animals are in the soil. Because of the serious impact on plants that Cu metal is a serious threat to agricultural land, depending on the acidity of the soil and the presence of organic matter. When farmland soil polluted with copper, animals will absorb concentrations that are harmful to their health. Mainly sheep suffer a great deal from copper poisoning, because the effects of Cu are shown at fairly low concentrations. Cases of mass animal diseases recorded in livestock farms located near industrial sites, polluting particles of copper compounds in aerosol form. Pollution copper-compliance with the rules of use of preparations of copper in plants,

To ensure that all of the copper sulfate reacts thoroughly with the heat, it was crushed up to a fine powder. After weighing the initial mass, the crucible was then filled one third of the way with the powder. Placed on a stand, it was heated by a gas fueled flame until the reaction finished and the powder turned white. The air vents on the burner were closed as to

Summary Table of Chemical Equations for all Metal-Solution Combinations and Conclusion on Metal Reactivity of the Metals Involved in This Investigation.