Chemistry of Metals Exploring Reactivity Lab Report
Order ID 53563633773 Type Essay Writer Level Masters Style APA Sources/References 4 Perfect Number of Pages to Order 5-10 Pages Description/Paper Instructions
Chemistry of Metals Exploring Reactivity Lab Report
Laboratory 7 Procedure : The Chemistry of Metals: Exploring Reactivity
Background:
Let’s consider single displacement reaction, where one element displaces another in a compound. This reaction can be summarized by the following general equation:
A(s) + BC(aq) => B(s) + AC(aq)
Figure 1: A is a free metal (s), BC is an ionic compound dissolved in water (aq), B is a free mental (s), and AC an ionic compound dissolved in water (aq).
In this type of reaction, there is a competition between the two elements (A and B). During this single displacement, redox reaction one element loses electron (or electrons) to the other element.
We can simplify the reaction by writing net ionic equation, that will show only the electron exchange between elements:
A(s) + B+ (aq) => A+(aq) + B(s)
Figure 2: A(s) is a free metal that is donating an electron and dissolving into the solution-forming cation A+(aq), a cation B+ (aq) is accepting an electron and converting to the free metal B(s).
Above reaction occurs when free metal A(s) is more reactive then ion B+ (aq) in the solution.
However, in cases where free metal A(s) is less reactive then ion B+ (aq) the reaction does not occur.
There are four signs to look for, when analyzing a chemical reaction:
Dramatic color change
Gas evolution (formation of bubbles)
Precipitate formation (formation of the solid)
Temperature change
In this lab you will determine order the relative reactivity of four metals: copper, magnesium zinc and led by performing series of redox reactions.
The main objective of this lab is to enhance your understanding of relative reactivity of metals.
Before you start this laboratory assignment, you are encouraged to research relative reactivity series and read pages 651-653 in your Textbook. Throughout this laboratory assignment, you will be required to analyze a chemical reaction in terms of single displacement redox reaction. Be sure to record all observations and any relevant notes that you think you will need to include in your laboratory report.
Take a moment to formulate and write down a hypothesis answering the question what group of metals is more reactive alkaline earth metals or transitional metals?
Pre-Lab questions:
1.Using your own words, explain what is a relative reactivity?
What is a redox reaction?
What happens to the electrons during a redox process?
Procedure:
Preparing the Lab 5
From the course home page, click on the Virtual Lab Tutorial link to watch the overview of using the virtual lab.
From the course home page, access the lab environment by clicking on the Virtual Lab
After the lab environment loads, click ‘File’ then ‘Load an Assignment.’
Select the ‘Redox’ category,
Select the ‘Redox Reaction Series’ assignment.
If you haven’t already done so, formulate a hypothesis what group of metals is more reactive alkaline earth metals or transitional metals? as you will need to include this in your final report.
Select the ‘Solids’ tab in the stockroom. Then, select the container with ‘Cu’ metal and move it to theworkbench.
Transfer 5 mL of ‘magnesium nitrate’ to the empty 250 mL Erlenmeyer flask. Record its temperature.
Record the temperature, and any other possible changes to the reaction mixture.
After you record your data, clear the workbench, and start again for the next solution/metal combination listed in the table in the Data Table.
Carefully analyze the Data collected in the Data Table.
Write details justification for your selection of the order.
link.
5.At this point, you have prepared the laboratory for the first experiment with the require supplies to complete your experiments.
Performing the Experiment
7.Select the ‘Solutions’ tab in the stockroom if it is not already selected. Then, select the Erlenmeyer flask containing the ‘0.1M magnesium nitrate solution’ to move it to the workbench.
9.From ‘Glassware’ select 250 Erlenmeyer flask, and 5 mL pipette.
11.Transfer 1.0 g of ‘Cu’ to the 250 mL Erlenmeyer’s flask containing magnesium nitrate solution.
Data Collection Data Table:
Solution Temperature Metal Signs of Reaction Net Ionic Equation Mg+2 Cu Zn+2 Cu Pb+2 Cu Cu+2 Mg Zn+2 Mg Pb+2 Mg Cu+2 Zn Mg+2 Zn Pb+2 Zn Cu+2 Pb Mg+2 Pb Zn+2 Pb Data Analysis
15.Arrange the four metals in order of their increasing relative reactivity. From least reactive to the most reactive.
Notes
This section should include notes about any observations or data collected during the lab.
Report Requirements
This section contains key information that must be included in your typed report.
1.Define the problem in a manner that is clear and insightful.
Identify the strategies and procedures used during the lab.
Clear presentation of data including any tables or other figures that are relevant to understanding your stated conclusions at the end of the report. Include any relevant calculations performed during the lab.
Clearly stated results and discussion of possible improvements to the procedure.
Conclusive statements arguing in favor of your findings.
3.Clear hypothesis statement and other potential solutions that identify any relevant contextual factors (i.e. real-world costs).
Note: All reports will be graded using the rubric embedded within the course.
Here are some questions to consider as you write your report:
Does my problem statement make sense?
Have I summarized my strategies/procedures well enough to be replicated by an outsider?
Did I have a valid hypothesis at the start of the lab? Have I expressed this in my report?
Do my tables and/or graphs make sense?
Are my conclusions valid based on my supplied data?
6.Did I thoroughly summarize my laboratory experience in a concise, factual way such that the reader can understand my processes and findings in the conclusion section alone?
RUBRIC
QUALITY OF RESPONSE NO RESPONSE POOR / UNSATISFACTORY SATISFACTORY GOOD EXCELLENT Content (worth a maximum of 50% of the total points) Zero points: Student failed to submit the final paper. 20 points out of 50: The essay illustrates poor understanding of the relevant material by failing to address or incorrectly addressing the relevant content; failing to identify or inaccurately explaining/defining key concepts/ideas; ignoring or incorrectly explaining key points/claims and the reasoning behind them; and/or incorrectly or inappropriately using terminology; and elements of the response are lacking. 30 points out of 50: The essay illustrates a rudimentary understanding of the relevant material by mentioning but not full explaining the relevant content; identifying some of the key concepts/ideas though failing to fully or accurately explain many of them; using terminology, though sometimes inaccurately or inappropriately; and/or incorporating some key claims/points but failing to explain the reasoning behind them or doing so inaccurately. Elements of the required response may also be lacking. 40 points out of 50: The essay illustrates solid understanding of the relevant material by correctly addressing most of the relevant content; identifying and explaining most of the key concepts/ideas; using correct terminology; explaining the reasoning behind most of the key points/claims; and/or where necessary or useful, substantiating some points with accurate examples. The answer is complete. 50 points: The essay illustrates exemplary understanding of the relevant material by thoroughly and correctly addressing the relevant content; identifying and explaining all of the key concepts/ideas; using correct terminology explaining the reasoning behind key points/claims and substantiating, as necessary/useful, points with several accurate and illuminating examples. No aspects of the required answer are missing. Use of Sources (worth a maximum of 20% of the total points). Zero points: Student failed to include citations and/or references. Or the student failed to submit a final paper. 5 out 20 points: Sources are seldom cited to support statements and/or format of citations are not recognizable as APA 6th Edition format. There are major errors in the formation of the references and citations. And/or there is a major reliance on highly questionable. The Student fails to provide an adequate synthesis of research collected for the paper. 10 out 20 points: References to scholarly sources are occasionally given; many statements seem unsubstantiated. Frequent errors in APA 6th Edition format, leaving the reader confused about the source of the information. There are significant errors of the formation in the references and citations. And/or there is a significant use of highly questionable sources. 15 out 20 points: Credible Scholarly sources are used effectively support claims and are, for the most part, clear and fairly represented. APA 6th Edition is used with only a few minor errors. There are minor errors in reference and/or citations. And/or there is some use of questionable sources. 20 points: Credible scholarly sources are used to give compelling evidence to support claims and are clearly and fairly represented. APA 6th Edition format is used accurately and consistently. The student uses above the maximum required references in the development of the assignment. Grammar (worth maximum of 20% of total points) Zero points: Student failed to submit the final paper. 5 points out of 20: The paper does not communicate ideas/points clearly due to inappropriate use of terminology and vague language; thoughts and sentences are disjointed or incomprehensible; organization lacking; and/or numerous grammatical, spelling/punctuation errors 10 points out 20: The paper is often unclear and difficult to follow due to some inappropriate terminology and/or vague language; ideas may be fragmented, wandering and/or repetitive; poor organization; and/or some grammatical, spelling, punctuation errors 15 points out of 20: The paper is mostly clear as a result of appropriate use of terminology and minimal vagueness; no tangents and no repetition; fairly good organization; almost perfect grammar, spelling, punctuation, and word usage. 20 points: The paper is clear, concise, and a pleasure to read as a result of appropriate and precise use of terminology; total coherence of thoughts and presentation and logical organization; and the essay is error free. 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