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

Phosphoric acid titration lab report

03/11/2021 Client: muhammad11 Deadline: 2 Day

Two Lab Reports

Acid-Base Chemistry

Hands-On Labs, Inc. Version 42-0137-00-03

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: Using pH Paper and the Indicator Bromothymol Blue (BTB)

Data Table 1. Data Collected from Exercise 1.

ID Number

Chemical Name

Chemical Formula

Hypothesis: Acid or Base

pH

BTB Color

Acid or Base?

11A

Acetic acid

CH3COOH

Acid

pH 2

Yellow

Acid

11B

Nitric acid

HNO3

Acid

pH 3

Yellow

Acid

11C

Sulfuric acid

H2SO4

Acid

pH 3

Yellow

Acid

11D

Phosphoric acid

H3PO4

Acid

pH 2

Yellow

Acid

11E

Sodium acetate

CH3COONa

Base

pH 7

Blue

Base

11F

Sodium bicarbonate

NaHCO3

Acid

pH 8

Blue

Base

11G

Sodium dihydrogen phosphate

NaH2PO4

Base

pH 0

Yellow

Acid

11H

Sodium hydrogen sulfate

NaHSO4

Acid

pH 6

Yellow

Acid

12A

Sodium hydrogen sulfite

NaHSO3

Acid

pH 5

Yellow

Acid

12B

Limewater

Ca(OH)2

Base

pH 9

Blue

Base

12C

Sodium phosphate

Na3PO4

Base

pH 13

Blue

Base

12D

Sodium hydrogen phosphate

Na2HPO4

Base

pH 7

Blue

Base

12E

Ammonium hydroxide

NH4OH

Base

pH 8

Blue

Base

12F

Hydrochloric acid

HCl

Acid

pH 2

Yellow

Acid

12G

Sodium carbonate

Na2CO3

Base

pH 10

Blue

Base

12H

Sodium hydroxide

NaOH

Base

pH 12

Blue

Base

Questions

A. When you created hypotheses to guess whether each chemical was an acid or base, what specifically did you look for in the chemical formulas?

I looked for OH- or H+ in the formula and if it was an H+ than the chemical is most likely acidic and OH- would be basic.

B. What is the value of using pH paper as an indicator?

You could find if it were a weak or strong acid or base by looking at the pH paper. With the pH paper, you would be able to determine the substances pH value number and not just if it’s acidic or basic.

C. What is the value of using BTB as an indicator? When might BTB be a better choice than pH paper?

To figure out the pH value we must add the BTB, green means it's natural, blue is base, and yellow is acidic. It’s useful to do this whenever you want to know if any chemical is acidic or basic.

D. Write the chemical equation of mixing nitric acid (HNO3) with water.

HNO3 (aq)+ H2O(aq) <—>H3O++NO3-

E. Write the chemical equation of mixing ammonia (NH3) with water.

NH3(aq) H2O —>NH4+(aq)+ OH-(aq)

F. What are the conjugate acids and conjugate bases of questions D and E?

The conjugate bases of D and E are NO3-and OH

Exercise 2: Acid-Base Reactions

Data Table 2. Acid-Base Reactions.

Row

1

2

3

4

5

6

A HCl

pH:

11

pH:

10

pH:

10

pH: 9

# drops NaOH:

5

B CH3COOH

pH:

0

pH:

9

pH:

0

pH: 12

# drops NaOH:

6

C C,H2SO4

pH:

6

pH:

9

pH:

11

pH:

14

pH:

13

pH: 12

# drops NaOH:

9

D H3PO4

pH:

2

pH:

5

pH:

6

pH:

6

pH:

12

pH: 7

# drops NaOH:

12

Questions

A. Visually analyze the wells in the plate. What information can be gleaned from each well based on the color of the BTB indicator after each reaction has occurred? How do you know if neutralization has occurred? Cite examples from the well plate reactions to support your answer.

Neutralization has happened when the resulting solution's pH will be less than 7. While looking at the reaction in the wells, you could see the BTB reacting with the chemical the color change can indicate the Neutralization has happed. But I think the most effective way was to use the pH test strip to determine the pH level to see if Neutralization has happed.

B. What factors determine if neutralization occurs during an acid-base reaction?

A neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water. The neutralization of a strong acid and strong base has a pH equal to 7.

C. Is the pH at the equivalence point always equal to 7? Explain your answer based on your experimental observations. Include a discussion of equivalence point pH values for strong versus weak acids.

There is no motivation behind why the pH ought to be seven at the equivalence point except if the acid being titrated is a strong acid, and the base from the Burette is a solid base. On the off chance that you are titration a frail acid with a solid base, the items will be a weak base and an exceptionally weak acid. So, pH will be >7.

D. In all the chemical reaction performed in Exercise 2, neutralization occurs when the pH is neutral (7) or basic (>7). Did any of the reaction not result in a color change of the BTB indicator from yellow (acid) to blue (base)? Explain why neutralization may not have occurred in one or more reactions.

I feel that some the chemicals that were neutralized combined well with the BTB resulting in their chemical reaction to be neutral as it is neither acidic nor alkaline and some did not blend because it may have been a weak acid it does not dissociate fully when it is dissolved.

Exercise 3: Testing the pH of Household Products

Data Table 3. Household Acids and Bases.

Household substance

Prediction:

(Acid, Base, or Neutral)

pH Value

Conclusion:

(Acid, Base, or Neutral)

Coffee w/Cream

Acid

pH 7

Neutral

Soda (Coke)

Acid

pH 3

Acid

Bleach

Base

pH 10

Base

Lysol

Acid

pH 7

Neutral

Isopropyl

Acid

pH 5

Acid

Questions

A. What properties did you use to determine whether the substances you tested were acid or base?

What I used were the pH strips to help me conclude whether the chemical/product I tested was acid or base.

B. Did any of your findings surprise you? Why or why not?

I was surprised by the coffee since the result came out to be neutral. I have always been told that it was acidic due to what it does to your teeth in long-term. But after thinking about it since there was cream in the coffee, it may have canceled the acidity in the coffee that would have made it an acid. Another one that I was surprised with was the Lysol since it is a cleaner, I thought it would be acidic to be able to clean thoroughly and remove all the grams.

My Findings

After working on this lab, I learned that not all things that you have been told might be correct for instance when I did the test on the coffee with cream it did not come out to be acidic. After thinking about it, I came up with a hypothesis that I wanted to test to see if I was correct and to my findings, I was right. So, I knew that the coffee I tested was not acidic with the cream. I took it upon myself to test another coffee without the cream, and the result was that black coffee is more acidic, I used a pH strip to check the coffee, and the result was a pH leave of 5 making it acidic. In conclusion, if you would like a coffee with less acidity add some cream to cancel it out.

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:

Math Specialist
Math Guru
Academic Mentor
Essay Writing Help
Calculation Master
Homework Guru
Writer Writer Name Offer Chat
Math Specialist

ONLINE

Math Specialist

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.

$45 Chat With Writer
Math Guru

ONLINE

Math Guru

I have worked on wide variety of research papers including; Analytical research paper, Argumentative research paper, Interpretative research, experimental research etc.

$27 Chat With Writer
Academic Mentor

ONLINE

Academic Mentor

I will be delighted to work on your project. As an experienced writer, I can provide you top quality, well researched, concise and error-free work within your provided deadline at very reasonable prices.

$37 Chat With Writer
Essay Writing Help

ONLINE

Essay Writing Help

I find your project quite stimulating and related to my profession. I can surely contribute you with your project.

$30 Chat With Writer
Calculation Master

ONLINE

Calculation Master

I am a PhD writer with 10 years of experience. I will be delivering high-quality, plagiarism-free work to you in the minimum amount of time. Waiting for your message.

$30 Chat With Writer
Homework Guru

ONLINE

Homework Guru

I am an elite class writer with more than 6 years of experience as an academic writer. I will provide you the 100 percent original and plagiarism-free content.

$29 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

If 1200 cm2 of material is available - Kennesaw state course catalog - Streakers hair salon - Annie's growing organically - I like my baby heir with baby hair and afros - Uob telegraphic transfer cut off time - Tjx data breach case study - Similarities between maslow and erg theory - Derek walcott love after love youtube - Mirvac land for sale - Loss of innocence archetype - Vocabulary - Glossary of film techniques - Which one of the following statements concerning the balance sheet is correct? - Career support programme claim form - Magnesium reacts with silver nitrate solution - Homework by helen simpson summary - St josephine bakhita mississauga mass times - Describe one characteristic of a disaster recovery team member. - The national center for education statistics monitors many aspects - Assignment - International computer driving license syllabus - Wella colour charm instructions - Add nitro pdf to printer list - Photoshop cs6 gif animation - Skylogger cheap flights - 4 Lecture Questions 100-200 Words Per Question - Single pole double throw relay diagram - Capsim - Business intelligence course syllabus pdf - Indra nooyi a transcultural leader - Cuda c++ Blur - Punchline algebra book b 17.8 answers - Mary kay in india case study - Product concept document template - Carbon dioxide and limewater - Review of related literature on teacher education - Middle adulthood physical development - Nixe mackerel fillets in tomato sauce syns - Organisational Theory - Security Proposal - Joint application development example - How do working credits work - Squealing pig dan murphys - Economics june 2010 mark scheme - Owasp secure software contract annex - Captain morgan voicemail tool pranks friends - Burns rule of 9 - ____ control is a method of gathering information about performance deficiencies as they occur. - Topic 9 DQ 2 - U.S. Health Care Systems for Small Populations, Part 1 - Cmit 350 cisco network proposal part 2 - Advantages and disadvantages of joint cost allocation methods - Reading Assignment - Marty grims net worth - How to calculate bonus in excel sheet - The global business standards codex - Arduino measure elapsed time - 20 Page Research Paper: APA Style, 12 Point Font, Cite References - Legislation Comparison Grid and Testimony/Advocacy Statement - Australia post cn22 form - Assignment - Cost of racv inspection - Ocn london access to he - Pride poem by dahlia ravikovitch - Requesting Paper - Event driven service oriented architecture - Leadership in organizations gary yukl free download - Surfers paradise outrigger canoe club - Playstation network london gb pos authorisation - Thickness of aluminum foil - 2 truths and a lie lies - Ebonite optyx skull bowling ball - Commission received in advance is which account - Tudor close ferring for sale - Wireless Technology 3 - 7 welcome street woy woy - Linuxzoo - Write a two page summary and analysis on chapters 1-3 (six pages total) on Raising the States : E-Sports and the Professionalization of Computer Gaming book - Kurt vonnegut story chart - Strategic audit worksheet example - Goldengate org tolls sitemap php - Kinematic equation for time - LEADERSHIP & MANAGEMENT - LEADERSHIP CONSULTANT ANALYSIS - Article 1 national territory explanation tagalog - How is the atar calculated sa - How long did johnny cash spend in jail - Manchester importer parraweena road - World's strictest parents reed and jessica full episode - List and briefly define ieee 802.11 services - Ism3013 test 3 - Advantages of web publishing - Asot design question 4 - Assignments - A summary of the outsiders - Wattyl colourthane s series - P3 - Avaya one x agent stuck on connecting - Bluecoat academy shutting down - Plato's allegory of the cave ted talk