Loading...

Messages

Proposals

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

5.02 english 3 one today

25/11/2021 Client: muhammad11 Deadline: 2 Day

Hands-On Labs, Inc. Version 42-0140-00-04

Lawrence lovejoy

Lab Report Assistant

This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor.

Exercise 1: Colorimeter and Sample Preparations

Data Table 1. Concentration and Resistance

Tube Label

Concentration of Red Dye in the Test Tube (M)

Resistance for W blank (Ω)

Resistance for sample (Ω)

Overall resistance = sample resistance (Ω)/blank resistance (Ω)

B

1.99 x 10-4

5.02 x 103(Ω)

5.02 x 103

1

1

2.15 x 10-4

4.65 x 103

6.23 x 103

1.33

2

1.59 x 10-4

6.28 x 103

6.25 x 103

0.99

3

1.39 x 10-4

7.19 x 103

7.19 x 103

1

4

1.19 x 10-4

8.403 x 104

8.10 x 104

0.96

5

9.95 x 10-5

1.005 x 104

1.00 x 104

1

6

7.96 x 10-5

1.256 x 104

1.25 x 104

1

7

5.97 x 10-5

1.675 x 104

1.67 x 104

1

8

3.98 x 10-5

2.51 x 104

2.51 x 104

1

9

1.99 x 10-5

5.02 x 104

5.02 x 104

1

CD1

1.99 x 10-4

5.02 x 103

5.02 x 104

1

CD2

1.99 x 10-5

5.02 x 104

5.02 x 104

1

W

0

0

2

0

Data Table 2. Concentration and % Transmittance

Tube Label

Concentration of Red Dye in the Test Tube (M)

Resistance for W blank (Ω)

Resistance for sample (Ω)

Current for W blank (μA)

Current for sample (μA)

% T = sample current (microamps)/blank current ( μA ) x 100

B

1.99 x 10-4

5.02 x 10-3

5.02 x 103

5.02 x 10-3

5.02 x 10-3

100

1

2.15 x 10-4

5.02 x 10-3

6.23 x 103

5.02 x 10-3

6.23 x 10-3

80.57

2

1.59 x 10-4

5.02 x 10-3

6.25 x 103

5.02 x 10-3

6.25 x 10-3

80.47

3

1.39 x 10-4

5.02 x 10-3

7.19 x 103

5.02 x 10-3

7.19 x 10-3

69.86

4

1.19 x 10-4

5.02 x 10-3

8.40 x 103

5.02 x 10-3

8.40 x 10-3

59.79

5

9.95 x 10-5

5.02 x 10-3

1.00 x 104

5.02 x 10-3

1.00 x 10-2

50.23

6

7.96 x 10-5

5.02 x 10-3

1.25 x 104

5.02 x 10-3

1.25 x 10-2

30.07

7

5.97 x 10-5

5.02 x 10-3

1.67 x 104

5.02 x 10-3

1.67 x 10-2

31.31

8

3.98 x 10-5

5.02 x 10-3

2.51 x 104

5.02 x 10-3

2.51 x 10-2

20

9

1.99 x 10-4

5.02 x 10-3

5.02 x 103

5.02 x 10-3

5.02 x 10-3

100

W

0

0

0

0

0

0

Data Table 3. Concentration and Absorbance

Tube Label

Concentration of Red Dye in the Test Tube (M)

A = log (100/%T)

B

1.99 x 10-4

100

1

2.15 x 10-4

80.57

2

1.59 x 10-4

80.47

3

1.39 x 10-4

69.86

4

1.19 x 10-4

59.79

5

9.95 x 10-5

50.23

6

7.96 x 10-5

30.07

7

5.97 x 105

31.31

8

3.98 x 10-5

20

9

1.99 x 10-4

100

W

0

0

Exercise 2: Beer’s Law Curve and Unknowns

Graph 1. Resistance vs. Concentration

Plot

Graph 2. % Transmittance vs. Concentration

Plot

Graph 3. Absorbance vs. Concentration

Plot

Questions

A. Describe possible sources of error in this experiment.

Possible sources of error would be spilling of any substance to which would alter the outcome of each experiment, lack of attention to time and chemical reaction registration, as well as the use of the wrong chemicals.

The remainder of these questions are based upon the following scenario:

A testing laboratory has been hired by a company called “Drug Company Q” to analyze a series of over-the-counter drugs that the company produces. In all of these over-the-counter drugs, the active ingredient is called “Active Ingredient M.” The laboratory technician collected the data from samples with known concentrations of Active Ingredient M. The data is shown below in Table 2.

Table 2. Known Concentrations of Active Ingredient M Drug

Sample Identification Code

Sample Concentration (M)

Absorbance

Q5000

4.00 x 10-4

0.750

Q5001

3.20 x 10-4

0.602

Q5002

2.40 x 10-4

0.447

Q5003

1.60 x 10-4

0.299

Q5004

8.00 x 10-5

0.150

The technician also collected absorbance readings for the 5 over-the-counter drugs for review. The data collected for the 5 over-the-counter drugs is shown in Table 3.

Table 3. Absorbance Data for Over-the-counter Drugs

Sample Identification Code

Absorbance

M21050-1

0.359

M21050-2

0.356

M21050-3

0.339

M21050-4

0.376

M21050-5

0.522

B. Create a Beer’s law plot and best fit line for the data in Table 2.

C. Use the Beer’s law plot and best fit line to determine the concentrations for samples: M21050-1, M21050-2, M21050-3, M21050-4, M21050-5.

2.17 x 10-4 M

2.14 x 10-4 M

2.04 x 10-4 M

2.27 x 10-4 M

3.00 x 10-4 M

D. The company reported that sample M21050-2 has an M concentration of 0.0003M. Assuming that the results in Question C are 100% accurate and without error, is the company’s statement accurate? What is the percent error between the reported concentration and the concentration calculated in Question C?

Assuming that the results in Question C are 100% accurate and without error, I think the company’s statement is inaccurate and the percent error between the reported concentration and the concentration calculated in Question C is approximately 39%.

E. By law, Drug Company Q must have an M concentration between 2.85 x 10-4 M and 3.15 x 10-4M. Do all samples analyzed meet the legal requirements? Use the information from Question C to explain your answer.

There appears to only be one sample analyzed that meets the legal requirements needed which would be M20150-5 (3.00*10-4 M).

Question: What is spectroscopy and describe the different spectroscopic methods?

Spectroscopy is a study of the interactions between matter and electromagnetic radiation where electromagnetic radiation is composed of electrical and magnetic waves which oscillate on perpendicular planes. This specified range of wavelengths is allowed to pass through a sample containing a compound of interest (Chemistry LibreTexts, 2017). Typically light or mass spectra would be analyzed, where the spectrum of a source is used in order to determine the composition of a substance with the following methods: cirular dichroism, mass spectrometry, Raman spectroscopy, nuclear magnetic resonance spectrscopy, ultraviolet-visible spectroscopy, and Ultraviolet-visible spectroscopy (Hands-On Labs, Inc., n.d.).

The Beer’s law relates the absorption of light to the properties of the material where light travels and, given what we’ve learned through these exercises, it was obvious that the linear relationship between the absorbance and concentration with the use of plots and also visualizing the change in color with diluted dye and how the concentration of each sample is affected.

Reasoning: after concentration and absorbance was made possible, mostly with the use of visualization ,I saw a significant difference in color change with each added solution.

Transmittance vs. Concentration

Concentration of Red Dye in the Test Tube (M) 1.9900000000000012E-4 2.1500000000000008E-4 1.5899999999999999E-4 1.3899999999999999E-4 1.1900000000000009E-4 9.9500000000000074E-5 7.9600000000000037E-5 5.9700000000000042E-5 3.9800000000000012E-5 1.9900000000000012E-4 0 100 80.569999999999993 80.47 69.86 59.790000000000013 50.230000000000011 30.07 31.310000000000006 20 100 0
Absorbance vs Concentration

Concentration of Red Dye in the Test Tube (M) 1.9900000000000012E-4 2.1500000000000008E-4 1.5899999999999999E-4 1.3899999999999999E-4 1.1900000000000009E-4 9.9500000000000074E-5 7.9600000000000037E-5 5.9700000000000042E-5 3.9800000000000012E-5 1.9900000000000012E-4 0 100 80.569999999999993 80.47 69.86 59.790000000000013 50.230000000000011 30.07 31.310000000000006 20 100 0
Known Concentrations of Active Ingredient M Drug

Absorbance
Q5000

Q5001

Q5002

Q5003

Q5004

4.0000000000000018E-4 3.2000000000000024E-4 2.4000000000000009E-4 1.6000000000000009E-4 8.0000000000000034E-5 0.75000000000000022 0.6020000000000002 0.44700000000000001 0.29900000000000015 0.15000000000000005

Resistance vs. Concentration

Concentration of Red Dye in the Test Tube (M) 1.9900000000000012E-4 2.1500000000000008E-4 1.5900000000000007E-4 1.3900000000000007E-4 1.9000000000000012E-4 9.9500000000000074E-5 7.9600000000000051E-5 5.9700000000000055E-5 3.9800000000000019E-5 1.9900000000000009E-5 1.9900000000000012E-4 1.9900000000000009E-5 0 100 80.569999999999993 80.47 69.86 59.790000000000013 50.230000000000011 30.07 31.310000000000006 20 100 0 1 0

Homework is Completed By:

Writer Writer Name Amount Client Comments & Rating
Instant Homework Helper

ONLINE

Instant Homework Helper

$36

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:

Assignment Hut
Quick Finance Master
Calculation Master
Top Grade Essay
Coursework Helper
Accounting & Finance Master
Writer Writer Name Offer Chat
Assignment Hut

ONLINE

Assignment Hut

I have assisted scholars, business persons, startups, entrepreneurs, marketers, managers etc in their, pitches, presentations, market research, business plans etc.

$44 Chat With Writer
Quick Finance Master

ONLINE

Quick Finance Master

I reckon that I can perfectly carry this project for you! I am a research writer and have been writing academic papers, business reports, plans, literature review, reports and others for the past 1 decade.

$18 Chat With Writer
Calculation Master

ONLINE

Calculation Master

I have done dissertations, thesis, reports related to these topics, and I cover all the CHAPTERS accordingly and provide proper updates on the project.

$26 Chat With Writer
Top Grade Essay

ONLINE

Top Grade Essay

I have written research reports, assignments, thesis, research proposals, and dissertations for different level students and on different subjects.

$36 Chat With Writer
Coursework Helper

ONLINE

Coursework Helper

I have read your project description carefully and you will get plagiarism free writing according to your requirements. Thank You

$49 Chat With Writer
Accounting & Finance Master

ONLINE

Accounting & Finance Master

I have assisted scholars, business persons, startups, entrepreneurs, marketers, managers etc in their, pitches, presentations, market research, business plans etc.

$44 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

Help need for research class (2) - Cic case study stage 3 - Custodial model of incarceration - Infographic Discussion on Rape Culture DUE SEPT. 13TH - Kakavas v crown melbourne ltd - Hw - Psychotherapy With Individuals - Triage assessment form crisis intervention - Managerial economics sixth edition answers - With ____ departmentalization, most employees report to two bosses. - Science Project - Team rocket kekeke pokemon go - Questions a social scientist would ask - Argumentative essay on organ trading - Health promotion in nursing practice 6th ed - What is the name christian mean - Parachute shapes and types - Norse and greek gods comparison chart - Research Paper - Are pigs color blind - Ugli fruit keep spiders away - Functions of marketing channels ppt - Hamlet did not love ophelia - Australian curriculum media arts - How to answer case study questions in management - 2 coments each one 150 words (CITATION AND REFERENCE) - Ancient greece essay topics - Density of a gummy bear - Cognitive information processing theory career counseling - The magician's nephew jadis - To 247 thermal resistance - Organizational Analysis - Mass of acetic acid in vinegar - Wk 3 - Signature Assignment: Juvenile vs. Adult Justice Systems Paper - Business law essay questions and answers - Financial technician job description - David wallerstein net worth - An insurance company offers four different deductible levels - Global business review abdc - Sydney water sewerage diagram - Bacha meaning in arabic - 12.3 kg in lbs - Got milk case study solution - Math399 statistics lab week 2 answers - Mcdonalds birthday party london - 4-2 Final Project Milestone Two: Case Analysis and Incident Impacts - Cpt code for ventriculoperitoneal shunt procedure - Calculator texas ti 30xb multiview - Discussion: 2 responses - Article Critique - The sides of a rhombus are equal always sometimes never - Zinc and vinegar chemical reaction - Cherry blossom pink and apple blossom white song - Christopher vogler 12 stages - Aba and verbal behavior - Tasso elba milled slim billfold wallet - Percentage purity of benzoic acid - Political Science Assignment Week 3 - Constellation stories for students - Fiji water unethical - Remote location monitoring criminal justice - Df 500 dit oven - Ap lang rhetorical analysis essay rubric - SOCW 6361 - Threat Categories [500 words] - Determine the horizontal component of reaction at pin c - Galatians 3 28 homosexuality - DATA Handling in the Hotel Management system - Wk 2, IOP 480: Organizational Assessment Tool Summary - Electric charge bbc bitesize - Technical standards in high technology industries are - Panera bread strategic issues - Comparing Arguments - Pigg o stat baby - Listen and indicate whether the questions and responses are lógico or ilógico. - Describe montresor's crime in a statement - 23 things they don t tell you about capitalism sparknotes - Economic and business - Huang ho river facts - Heat transfer coefficient of iron - Critique Paper - Evaluate the following numerical expressions - No gap dental australian unity - Dr aydin huq hospitalized - Although corrupt new york's tammany hall appealed to - Peaceful end of life theory - READ & REPLY - Wk 7 - "Navajo" - The security guard with a sadistic streak chapter 5 - How to write a museum visit paper - Drop in water station - Post-Sommer - Rcbs partner press parts - Restoration of three important ancient artworks - Developing a health advocacy campaign walden - Asian to white makeup transformation - Cage analysis brazil - Hazardous industries and chemicals branch - Qbo intuit com redir testdrive - The hut group c seko omni