Stuck in your homework and missing deadline? Get urgent help in $10/Page with 24 hours deadline

Get Urgent Writing Help In Your Essays, Assignments, Homeworks, Dissertation, Thesis Or Coursework & Achieve A+ Grades.

Privacy Guaranteed - 100% Plagiarism Free Writing - Free Turnitin Report - Professional And Experienced Writers - 24/7 Online Support

Copper cycle lab report answers

21/12/2020 Client: saad24vbs Deadline: 3 days

The cycle of Copper Reactions

The cycle of Copper Reactions


The cycle of a copper sequence of reactions for copper granules from its initial stage to the final recovered mass to make a cycle of copper reactions. Nonetheless, no copper is added or removed between the initial and final stages, as each reaction makes it to completion. According to the procedure given, there were no changes made as each step was followed to the recovery of copper.

In this copper cycle reactions, there are various observations from the chemical reaction from the initial to the final stage. Firstly, you need to have the copper material, in this case, the copper granules (Cu) where you mix with nitric acid (HNO3) will react to have copper Nitrate a solute substance Cu(NO3)2 (aq). The second procedure is having the copper nitrate mixing it with sodium hydroxide NaOH (aq) this react to form copper hydrate Cu(OH)2 (s) substance. Copper hydrate substance, therefore, is decomposed to have copper and oxygen as the third procedure. Sulfuric acid (H2SO4) is then added with copper and oxygen to have copper sulfate CuSO4 (aq). 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.


Table 1: Data Table on Mass Values

Measured Mass

Units (g)

Erlenmeyer flask


Copper granules


Erlenmeyer flask and dry copper


Mass of recovered copper


Percent of recovered copper


÷ × 100% = 91.6%


Table 2: Observations from reactions in the copper cycle



Cu + HNO3

The copper bubbles after about 20 seconds change its color in blue and its darkens

Cu(NO3)2 + NaOH

It substance becomes thicker and darker as its color turns black

Cu(OH)2 +heat

Turns black

CuO + H2SO4

This turns to light blue

CuSO4 + Zn

The water becomes lighter in weight and copper pieces becomes reddish

Sample calculations:


÷ X 100% = 91.6666%


0.48 grams is the initial copper granules mass, as this underwent the entire process of the cycle until the final mass recovered being 0.44 grams. To achieve the above variables you calculate the final mass over the initial mass production of one hundred percent to get the 91.6% mass recovered.

Analysis of results

Copper having its initial mass underwent the copper cycle reaction with other metals and solvents. The mass of a substance will, either way, change its mass since it has free air as this will affect a bit low, there is also unreacted materials and this through the decanting process some of the sediments are left in very minute grams this, therefore, affected the final product of copper recovered.

Mass values

Measured mass

Units grams(g)

Erlenmeyer flask (step 2)


Copper granules (step 3)


Erlenmeyer flask and Dry copper (step 19)


Mass of recovered copper


Percentage recovered



1. Identify the types of reactions observed and describe them in the same order as they are done in the experiment for the cycle of copper.

To begin with is reaction this is an oxidation-reduction (redox) reaction. This involves the transfer of electrons, in this case from copper to nitrogen having a chemical reaction of Nitric acid, copper granules and oxygen as the chemical materials used. The chemical formula is:

8 HNO3 (aq) + 3 Cu (s) + O2 (g) → 3 Cu (NO3)2 (aq) + 4 H2O (l) + 2 NO2 (g)

The solution ultimately found at the end of this reaction is copper nitrate and water and nitrogen gas escape to the atmosphere.

Secondly, is a double-replacement precipitation reaction, this, therefore, involves the nitrate and hydroxide ions switch partners as the copper hydroxide precipitates forms to be solid their chemical reaction is:

Cu (NO3)2 (aq) + 2 NaOH (aq) → Cu (OH) 2 (s) + 2 NaNO3 (aq)

Reaction three is a decomposition. The copper hydroxide ion breaks separately, leaving one oxygen combined with the copper. This happens to a copper hydroxide that was broken down to have water and copper with oxygen.

Cu (OH) 2 (s) → CuO (s) + H2O (l)

Reaction four is an acid-base reaction with a single replacement. The sulfate ion switches from the hydrogen to the copper, while the protons (hydrogen ions) combine with the oxide ion forming water their chemical reaction is:

CuO (s) + H2SO4 (aq) → CuSO4 (aq) + H2O (l)

The final reaction is a redox reaction in which zinc loses electrons to copper. Zinc being the chemical material and copper sulfur where zinc powder forms clumps in the solution to form zinc sulfate and copper material finally recovered. The chemical reaction is:

CuSO4 (aq) + Zn (s) → ZnSO4 (aq) + Cu (s)

1. What would be the effect of using a single, solid chunk of copper metal instead of the copper granules? What would be the effect of using powdered copper metal? Describe the factor or factors taken into consideration to answer this question. For solid chunk copper to be used, this would, therefore, make the reaction rate so slow and the time consuming thus granules are of preference. Powder copper oxidizes faster in the air on room temperature and thus prompting to change in color and for copper granules, it does not get affected

1. In step 4, you were warned not to let the solution bubble due to bumping or boiling. If the solution did splash out of the flask due to bubbling, would this affect your final product? Explain. If the solution gets spilled out of the graduated cylinder, this will ultimately affect the final solution since there are specified measurements of 10 mL of 5.0 M nitric acid (HNO3) using a 10mL graduated cylinder and that cannot be compromised. Unreacted materials also occur as this alters the final mass of copper recovered through heat loss and decanting process.

1. New pennies in the U.S are made approximate 95% from zinc metal and to make it look like copper in color it is therefore covered by copper foil on the outer side. In the US it was designed best in minting the pennies. To make a comparison in their characteristics and composition, pure solid copper weighs 3.11 grams while copper-plated zinc pennies weigh 2.5grams. Pennies, when dropped to listen to their sound, have a flat sound while copper has high-pitched melodious ring sound (Susan, 2019).


This process in a view is informative on how different chemical reactions in this case copper being the main material reacts. It allows one to freely observe firsthand experience in different stages of the copper cycle and that also builds confidence to handle different chemical reaction procedures. A challenge being some of the chemicals may not react or buys more time to get the desired results in this case copper materials recovered reduced from the initial mass. Moving forward some of the chemicals may expire or their chemical concentration reduced thus affecting their reactivity. This, therefore, persons responsible should regularly check the details and concentrations of the chemical.

Applied Sciences

Architecture and Design


Business & Finance


Computer Science






Environmental science




Human Resource Management

Information Systems






Political Science




Social Science






Copyright © 2019 HomeworkMarket.com

Homework is Completed By:

Writer Writer Name Amount Client Comments & Rating
Instant Homework Helper


Instant Homework Helper


She helped me in last minute in a very reasonable price. She is a lifesaver, I got A+ grade in my homework, I will surely hire her again for my next assignments, Thumbs Up!

Order & Get This Solution Within 3 Hours in $25/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 3 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 6 Hours in $20/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 6 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 12 Hours in $15/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 12 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

6 writers have sent their proposals to do this homework:

Top Essay Tutor
Helping Hand
University Coursework Help
Writer Writer Name Offer Chat
Top Essay Tutor


Top Essay Tutor

I have more than 12 years of experience in managing online classes, exams, and quizzes on different websites like; Connect, McGraw-Hill, and Blackboard. I always provide a guarantee to my clients for their grades.

$105 Chat With Writer
Helping Hand


Helping Hand

I am an Academic writer with 10 years of experience. As an Academic writer, my aim is to generate unique content without Plagiarism as per the client’s requirements.

$100 Chat With Writer
University Coursework Help


University Coursework Help

Hi dear, I am ready to do your homework in a reasonable price.

$102 Chat With Writer

Let our expert academic writers to help you in achieving a+ grades in your homework, assignment, quiz or exam.

Similar Homework Questions

Contemporary project management fourth edition - Saving investment and the financial system multiple choice - Medical teams international volunteer - Persuasive techniques in writing - Marketing campaign simulation - Order entry sales oe s process - Bridgestone tg australia pty ltd - Economic 6 - Raspberry pi water level logger - Due today by 10pm - Garden city mall banks - Incremental heat rate curve - Panera bread case study financial analysis - 33/33 reservoir street surry hills - Editing challenge 2 business communication - 6538 celestial drive baton rouge la - Art history - Https healthyheartscore sph harvard edu - Rules that dictate sentences - Deutsche bank case study answers - Ionic equation for magnesium and hydrochloric acid - Unit VIII Assignment - Coral bay hospital case study - Commitment a cautionary tale and provide an exampleRefer To Page 309. Commitment: A Cautionary Tale And Provide An Example Of This Issue Which Has Happened To You. This Assignment Will Be Graded Based On Depth And Clarity. - Standing soldiers kneeling slaves summary - ACC 305 Intermediate Accounting I - Ffx al bhed primers - Average heart rate of daphnia magna - Chris rose logan city council - Assignment help - Essay 2-3 pages APA Format - Informative speech on walt disney - Army bfa standards australia - Research Paper CMRJ306 TOPIC is Driving Under the Influence - Legal ethical and professional issues in information security book - Comprehensive accounting problem with solution - Introduction to project management kathy schwalbe 5th edition pdf - Money and materialism in a doll's house - Dr ekram abdul hameed - Functional areas of business - Aristotle concept of tragedy in poetics - Zimmer ncb distal femur plate - Fsra tier 2 accreditation cost - Journal Entry - A company is 40 financed by risk free debt - Why does anita baker walk with a limp - Culture - Write a 2-3 page essay - What two elements have similar properties - The distance from the sun to uranus - Accounting - A description of what you believe to be the consequences of a healthcare organization not involving nurses in each stage of the SDLC when purchasing and implementing a new health information technology system. - Strategic management assignment - 3010 kj to calories - The illusion of taking charge learning disability - Working at university health network - The language you cry in - Computer Science - PYS Assignment W8 - Norwegian school of economics - Walden nurs 6630 final exam - Kanashimi wo yasashisa ni osu - Need help on purchasing & supply chain - Night shift duty quotes - Preventing injury from heat therapy ati - Interpreting skewness and kurtosis in spss - The slope of a speed time graph indicates - Top yogh yaught - Intel centrino advanced n 6250 - Uniqlo expansion plans - Examples of field research in sociology - Bubble sort comparison calculator - Night by elie wiesel chapter 1 quotes - Southwest airlines competitive advantage case study - Macmillan palliative care unit sheffield - Art production manager job description - Dianella cassa blue bunnings - The garden depot case study - Which role is most likely to communicate an impediment during a daily scrum? - An examined life critical thinking and ethics pdf free - CHRISTIAN SERVANT LEADERS - The man he killed by thomas hardy summary - Difference between rfc and rfc d account - Shadow health focused exam abdominal pain esther park - Applications of digital electronics ppt - Define the following terms answer - Assisted suicide speech outline - Bbc three gorges dam - The possibility restaurant case problem solution - Advocacy role of nurse practitioner - Lindy river rocker dive chart - Romans 8 29 30 suggests what about salvation - 3 5 page research paper - Harvey norman bennetts green - Worst case best case average case - Www abc net au science lcs swf heart swf - Is a manatee a herbivore or carnivore - Researchers in cognitive psychology and sensation perception are sometimes called - Facing it by yusef komunyakaa theme - Anatomy