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

Titration of acids and bases lab report answers

08/12/2021 Client: muhammad11 Deadline: 2 Day

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:

Calculation Guru
Smart Tutor
Professional Accountant
Instant Assignments
Top Grade Tutor
Top Rated Expert
Writer Writer Name Offer Chat
Calculation Guru

ONLINE

Calculation Guru

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

$23 Chat With Writer
Smart Tutor

ONLINE

Smart Tutor

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

$45 Chat With Writer
Professional Accountant

ONLINE

Professional Accountant

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

$38 Chat With Writer
Instant Assignments

ONLINE

Instant Assignments

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

$23 Chat With Writer
Top Grade Tutor

ONLINE

Top Grade Tutor

Being a Ph.D. in the Business field, I have been doing academic writing for the past 7 years and have a good command over writing research papers, essay, dissertations and all kinds of academic writing and proofreading.

$30 Chat With Writer
Top Rated Expert

ONLINE

Top Rated Expert

As an experienced writer, I have extensive experience in business writing, report writing, business profile writing, writing business reports and business plans for my clients.

$20 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

Snhu managerial accounting final project - Visiting nurse job description - Principles of distributed database systems 3rd edition - Tic tac toe project report in java - Nursing- evidence based - Sun west mortgage rates - Improving literacy in secondary schools a shared responsibility - Duckscarves career - Grade 9 grammar worksheets - How to write a rationale for a research paper - Goodweek tires inc case study - Logan products computes its predetermined overhead rate - How does a solid state overload relay work - Estraya falcon pointe resident portal - Bbc bitesize ks2 maths decimals - Hull theory vs Tulman Theory - Scaffolding weight per m3 - Living in a media world 6th edition - Ctopp-2 sample report ages 7-24 - Sam cengage excel project 7 - Abb ovr 3 recloser manual - Rotor earth fault protection - Creating and interpreting a demographic table - John santrock essentials of lifespan development 5th edition - Lse general course acceptance rate - Ifric 4 embedded leases - How full is your bucket online book - Deliverable 3 - Ranking Capital Investment Projects Excel and Power Point - Financial accounting report - Alistair trung gertrude street - Today by billy collins analysis - Radical 2 times radical 2 - The art of negotiation chris voss - Professional career and development loan register list - The Flow of Energy - 4 5 as a decimal and percent - 753 rowland road fairfield ct - Module 8 Discussion - The Technological Environment and the Challenge of Social Media - Essay assignments - Summary/Response - Ib extended essay rubric - Week 5 Lab: Gene Expression - Mw petroleum corporation case solution - Comprehensive problem 2 palisade creek co answers - Ivan franko national university of lviv - Hotel connected to mandalay bay - Bpf filter cheat sheet - Rubric for evaluating children's books - OE W 5 A - Netscaler policy cannot be bound to specified policy label - - Community Teaching Plan: Community Teaching Work Plan Proposal - Ethics and technology herman t tavani pdf - Windshield survey example - Macro systems paper - Product of 3 consecutive numbers - Helping skills facilitating exploration insight and action pdf download - Protozoa fungi worksheet - Is hacksaw ridge based on a true story - Portfolio - Expository Essay about the use of cellphones in the classroom - Dissolve styrofoam in gasoline - Theories of pain transmission through dentin - Global citizenship and equity assignment - Probate fees list pa3 - HR case study - Discussion post - Potential energy virtual lab - John harrox primary school - Fios hbo channel number - Cube root of 999 - Homework - The delicious miss dahl dvd - Chapter 7 circular motion and gravitation test b answers - Bloomberg businessweek b school connection program - Ezproxy liberty 2048 login - Project Management - Inno setup script examples - Impaired tissue perfusion related to - Data table 1 chemical equations answers - 13 businesses with brilliant global marketing strategies - William glasser choice theory book pdf - 5/88 alt street ashfield - 495 Discussion and journal week 3 - 2 methylbutane reacts with chlorine - Urgent 9 - Readability Exercise - What is the meaning of numerical coefficient - Copper electron dot diagram - Horizon 4 stunt driver chapter 7 - A volume of 75ml of 0.060 m naf - Office of miners health safety and training - Management Strategy for Performance Paper 3 - Discussion(AG) - Ndis participant portal login - Soap note example well visit - The great conversation melchert pdf - The success of the pixar disney strategic alliance demonstrated that - Business Law - 6 principles of mission command