Assignment: Hands-On Labs Paper

Assignment: Hands-On Labs Paper

Assignment: Hands-On Labs Paper

Permalink: 

Don't use plagiarized sources. Get Your Custom Essay on
Assignment: Hands-On Labs Paper
Just from $13/Page
Order Essay

Student Name

Mohammed Alnaimi

Student ID 48408 Lesson Oxidation-Reduction Activity Series Institution Ocean County College Session 2019L3 CHEM 182 DL1 Course CHEM 182 DL1 Instructor Nancy Marashi

Final Report

Exercise 1

CHEM 182 DL1 Oxidation-Reduction Activity Series

Oxidation is the process of being oxidized. Reduction is when a chemical, during a reaction, gains electrons. The oxidation number is the number of electrons that is either gained or lost by the element. The oxidation and reduction affect the oxidation number of an element is that when an element is oxidized or reduced, the reduction number will either increase or decrease

1. Def ine oxidation, reduction, and oxidation number. Describe how oxidation and reduction af fect the oxidation number of an element.

An oxidizing agent gains electrons and then reduces in the chemical reaction that is going on. The reducing agent is when oxidation occurs when an element loses electrons during a reaction. A spectator ion is both a reactant and a product in a chemical reaction.

2. Def ine oxidizing agent, reducing agent, and spectator ion.

Copyright 2019 – Hands-On Labs | http://holscience.com 2 / 7

Data Table 1: Redox Reaction of Copper and Silver Nitrate

The new substance that appeared in the test tube during the reaction of copper and silver nitrate was a silverish metallic looking substance. The chemical formula for the substance would be Cu + 2AgNO3 = Cu(NO3)2 + 2 Ag. (This is if we assume the substance is silver or Ag.)

3. In the reaction of copper and silver nitrate, a new substance appeared in the test tube. Describe the physical appearance of the substance and identif y its chemical formula.

Copper would be listed above silver. The copper reacted more than the silver during the experiment. That is why during the experiment the copper was the element that was oxidized was also the oxidizing agent, whereas, the silver was the element that was reduced and was the reducing agent.

4. Given an activity series in which the most active metals are at the top of the list and the least active metals are at the bottom of the list, would copper be listed above silver or would silver be listed above copper? Support your answer with data f rom Data Table 1.

The chemical equation that describes the reaction is: CuS (s) + 2AgNO3(aq) –> 2Ag2S (s) + Cu(NO3)2 (aq). The oxidation number of each element, in order, are: (+2 -2), (+1 +5 -2), (+1 -2), and (+2 +5 -2). This is a non-redox reaction.

5. Solid copper sulf ide and silver nitrate react to form copper (II) nitrate and solid silver sulf ide. Write a balanced chemical equation that describes the reaction. Identif y the oxidation number of each element in the reaction. (You do not need to include the total contribution of charge.) Is this reaction a redox reaction or a non-redox reaction? Explain your answer.

Copyright 2019 – Hands-On Labs | http://holscience.com 3 / 7

Photo 1: Chemical Equation for Redox of Copper and Silver Nitrate. Note: Copper has a +2 oxidation number in the products. Silver has its expected oxidation number on the reactons side.

Initial Observations before Beginning

Observations

Observations after 30 min

Element that is Oxidized

Element that is Reduced

Spectator Ion

Oxidiz ing Agent

Reducing Agent

Copyright 2019 – Hands-On Labs | http://holscience.com 4 / 7

Exercise 2

Metals: Cu, Pb, and Zn. Oxidation # – Pure: 0, 0, and 0. Oxidation # – Compound: +2, +2, and +2.

1. List each of the metals tested in Exercise 2. Indicate the oxidation number when each element is pure and the oxidation number when each element is in a compound.

The metal that was the strongest oxidizing agent was copper. I don’t think copper is the reducing agent because it is more so the oxidizing agent during the reactions. Assignment: Hands-On Labs Paper

2. Which of the metals in Exercise 2 was the strongest oxidizing agent? Was there an instance when this metal also acted as a reducing agent? Explain your answer using data f rom Data Table 3.

The strongest reducing agent was zinc. There weren’t any instances when the metal also acted as an oxidizing agent. The oxidization was done more by the copper.

3. Which of the metals in Exercise 2 was the strongest reducing agent? Was there an instance when this metal also acted as an oxidizing agent? Explain your answer using data f rom Data Table 3.

The ease of oxidation correlates with the activity because the more active, the easier it is to oxidize. The highly active metals tend to donate electrons to other metals.

4. How does ease of oxidation correlate with activity? Do highly active metals tend to donate electrons or accept electrons f rom other metals?

Copyright 2019 – Hands-On Labs | http://holscience.com 5 / 7

Data Table 2: Redox Reactions of Copper, Lead, and Zinc

The most active metal at the top of the list would be Zn, the second would be Pb, and the third Cu.

5. Create an activity series for copper, lead, and zinc. Place the most active metal at the top of the list.

Solid Metal Well ID

Cu A1

Cu A2

Pb B1

Pb B2

Zn C1

Zn C2

Solid Metal Solution

Cu Pb(NO )

Cu Zn(NO )

Pb CuSO

Pb Zn(NO )

Zn CuSO

Zn Pb(NO )

Solid Metal Immediate Observation

Cu

Cu

Pb

3 2

3 2

4

3 2

4

3 2

The liquid is clear while the copper is bronze in color.

The liquid is clear while the copper is bronze in color.

Copyright 2019 – Hands-On Labs | http://holscience.com 6 / 7

Data Table 3: Potential Redox Reactions and Chemical Equations

Pb

Zn

Zn

Solid Metal 30 Minute Observation

Cu

Cu

Pb

Pb

Zn

Zn

There are a few bubbles that form around the lead, which turns bronze in color.

The lead is silver in color.

The z inc turned reddish from the top.

The z inc turns black.

There was no change.

There was no change.

The lead starts to rust.

There was no change.

The z inc was black with a little bit of red on the top.

The z inc becomes dark grey from the top.

Copyright 2019 – Hands-On Labs | http://holscience.com 7 / 7

Photo 2: Chemical Equations and Redox Numbers for Reactions

Metal and Metallic Solution Reaction Occurred?

Cu + Pb(NO )

Cu + Zn(NO )

Pb + CuSO

Pb + Zn(NO )

Zn + CuSO

Zn + Pb(NO )

3 2

3 2

4

3 2

4

3 2

Calculate the price
Make an order in advance and get the best price
Pages (550 words)
$0.00
*Price with a welcome 15% discount applied.
Pro tip: If you want to save more money and pay the lowest price, you need to set a more extended deadline.
We know how difficult it is to be a student these days. That's why our prices are one of the most affordable on the market, and there are no hidden fees.

Instead, we offer bonuses, discounts, and free services to make your experience outstanding.
How it works
Receive a 100% original paper that will pass Turnitin from a top essay writing service
step 1
Upload your instructions
Fill out the order form and provide paper details. You can even attach screenshots or add additional instructions later. If something is not clear or missing, the writer will contact you for clarification.
Pro service tips
How to get the most out of your experience with Proscholarly
One writer throughout the entire course
If you like the writer, you can hire them again. Just copy & paste their ID on the order form ("Preferred Writer's ID" field). This way, your vocabulary will be uniform, and the writer will be aware of your needs.
The same paper from different writers
You can order essay or any other work from two different writers to choose the best one or give another version to a friend. This can be done through the add-on "Same paper from another writer."
Copy of sources used by the writer
Our college essay writers work with ScienceDirect and other databases. They can send you articles or materials used in PDF or through screenshots. Just tick the "Copy of sources" field on the order form.
Testimonials
See why 20k+ students have chosen us as their sole writing assistance provider
Check out the latest reviews and opinions submitted by real customers worldwide and make an informed decision.
Medicine
Great work, Thank you, will come back with more work
Customer 452441, November 11th, 2022
Medicine
This was done very well. Thank you!
Customer 452441, November 11th, 2022
DESIGN AND IMPLEMENTATION OF NURSE ADVOCATE HEALTHCARE PROGRAM
The absolute best ! Thanks for great communication, quality papers, and amazing time delivery!
Customer 452467, November 14th, 2022
Medicine
Well researched paper. Excellent work
Customer 452441, November 11th, 2022
Medicine
Very fond of the paper written. The topic chosen is defiantly trending at this time
Customer 452495, July 27th, 2023
Medicine
Good work. Will be placing another order tomorrow
Customer 452441, November 11th, 2022
11,595
Customer reviews in total
96%
Current satisfaction rate
3 pages
Average paper length
37%
Customers referred by a friend
OUR GIFT TO YOU
15% OFF your first order
Use a coupon FIRST15 and enjoy expert help with any task at the most affordable price.
Claim my 15% OFF Order in Chat