what is a copper cycle lab report course hero

What is the purpose of this lab report on copper cycle?

Lab Report on copper cycle. 1. Purpose: The purpose of this experiment is to demonstrate a cycle of reactions involving copper. A specific quantity of copper will be transformed through a series of reactions and then recovered as solid copper. A percent recovery will be calculated and sources of loss (or gain) will be identified.

What is the color of copper cycle?

Lab Report on copper cycle. They are dark green in color and has cylindrical shape. The ascorbic acid is white inn color and is powdery. After adding 5 mL of distilled water into the powder and crystal mixture, the color of mixture changes to white but there is little greenish shade in mixture.

What are the possible sources of error in the copper experiment?

10. Discussions: There are many sources of error in this experiment as we got more value of experimental copper (0.0485 g) than theoretical value of copper (0.0402 g). This experiment includes decantation process, which always produce error. Some precipitate is always lost when supernatant liquid is separated from the precipitate.

What are the two parts of the copper ion experiment?

Data and Calculations: The experiment is divided into two parts (Part A and Part B). In the first part of experiment, the copper (II) ion is used to make new compounds and complexes.The cycle of reactions is completed with the reaction where elemental copper was regenerated.

What is a copper cycle lab report?

Purpose: To recognize the evidence of a chemical change and to prove the law of conservation of mass by observing a series of chemical reactions involving copper. A specific quantity of copper will be transformed through a series of chemical reactions to form new substances and then recovered as solid copper.

What is cycle of copper reaction?

In the first reaction, copper metal is oxidized by nitric acid to form copper (II) nitrate, Cu(NO3)2. It is then converted to copper (II) hydroxide, Cu(OH)2, by reaction with base. When this compound is heated, it is transformed to copper (II) oxide, CuO.

What is the purpose of the copper cycle?

Goal: To convert elemental copper into different copper compounds by a series of chemical reactions, regenerating elemental copper at the end of the copper cycle.

How do you make copper labs?

2:046:25The Copper Cycle Experiment - A Series of Reactions - YouTubeYouTubeStart of suggested clipEnd of suggested clipWe have a basic solution now set up a ring stand with the metal ring and a wire gauze. So that weMoreWe have a basic solution now set up a ring stand with the metal ring and a wire gauze. So that we can set the beaker the copper hydroxide right on top light your Bunsen burner.

Does the copper cycle confirm the Law of Conservation of Mass?

The Copper Cycle is a well-know experiment that is used to demonstrate the Law of Conservation of Mass. According to this law, mass is conserved during chemical reactions. In other words, the mass of copper in the reactants is supposed to equal the mass of copper in the products.

Why is the washing of copper necessary in this experiment?

Why is the washing of copper necessary in this experiment? For purity, you can't guarantee the results of an experiment to be accurate if there are undetermined variables. How will you be able to determine the mass of the iron lost from the nail during the reaction?

What do you observe that indicates that copper metal is being formed?

The physical change you should observe is the copper-colored metal vanishing as the solution turns blue (from [Cu(H2O)6]2+, the hexaaquacopper ion) and a brown gas (NO2) is evolved.

What does the mass of copper recovered Tell us about the chemical reaction that occurred?

The final procedure was copper sulfate mixed with zinc a reaction occurred and zinc loses electrons to copper and ultimately has the copper mass recovered which is measured....Lab Report Chemistry 1.ReactionObservationsCuO + H2SO4This turns to light blueCuSO4 + ZnThe water becomes lighter in weight and copper pieces becomes reddish3 more rows

Why is copper produced after all reactions?

The reason that the same mass of copper will be produced after all of the reactions that occur is because a constant number of copper molecules were present throughout the experiment.

How long does it take for CuCL powder to turn yellow?

After few minutes white precipitates settle down. During vacuum filtration of CuCL the color of powder changes into yellow color but there was still white powder in it. After 4 or 5 minutes its yellow color becomes brighter. After 5 more minutes it dries up but there was no specific color change and it remain yellow.

Is copper ion stable?

3. Yes it is easy to distinguish between both oxidation sates of copper metal. Compound of copper (I) ion is not much stable as compared to copper (II) ions. Cu2+ ions form ionic compounds that have a range of solubility in water but the Cu+ ion is unstable in aqueous solution.

Is copper a transition metal?

Moreover, the copper is transition metal with different oxidation state but most stable state is copper (II). 4. The synthesis of copper metal is most relevant when it is done using various series of reactions and making complexes. After the complex formation of metal it can be extracted in more pure form.