Access free live classes and tests on the app
Download
+
Unacademy
  • Goals
    • AFCAT
    • AP EAMCET
    • Bank Exam
    • BPSC
    • CA Foundation
    • CAPF
    • CAT
    • CBSE Class 11
    • CBSE Class 12
    • CDS
    • CLAT
    • CSIR UGC
    • GATE
    • IIT JAM
    • JEE
    • Karnataka CET
    • Karnataka PSC
    • Kerala PSC
    • MHT CET
    • MPPSC
    • NDA
    • NEET PG
    • NEET UG
    • NTA UGC
    • Railway Exam
    • SSC
    • TS EAMCET
    • UPSC
    • WBPSC
    • CFA
Login Join for Free
avtar
  • ProfileProfile
  • Settings Settings
  • Refer your friendsRefer your friends
  • Sign outSign out
  • Terms & conditions
  • •
  • Privacy policy
  • About
  • •
  • Careers
  • •
  • Blog

© 2023 Sorting Hat Technologies Pvt Ltd

Watch Free Classes
    • Free courses
    • JEE Main 2024
    • JEE Main 2024 Live Paper Discussion
    • JEE Main Rank Predictor 2024
    • JEE Main College Predictor 2024
    • Stream Predictor
    • JEE Main 2024 Free Mock Test
    • Study Materials
    • Notifications
    • JEE Advanced Syllabus
    • JEE Books
    • JEE Main Question Paper
    • JEE Coaching
    • Downloads
    • JEE Notes & Lectures
    • JEE Daily Videos
    • Difference Between
    • Full Forms
    • Important Formulas
    • Exam Tips
JEE Main 2026 Preparation: Question Papers, Solutions, Mock Tests & Strategy Unacademy » JEE Study Material » Chemistry » Preparation of Base Buffer

Preparation of Base Buffer

This article covers the topic of base buffer, along with base buffer preparation methods.

Table of Content
  •  

Before diving into a base buffer, we should know what a buffer solution is? The buffer solution is a mixture of a weak acid and its base conjugate or a weak base and its conjugate acid. Buffer solutions are used to help maintain a stable pH value of another solution mixed with the database.

Buffer solutions mainly are of two types: acid buffer and base buffer. The pH of buffer solutions shows a slight change on adding a little solid acid or solid foundation. They are therefore used to keep the pH at a constant value. Here, we will study base buffer preparation.

Base buffer preparation with meaning

Base buffer solutions are alkaline substances that convert red litmus paper into blue (pH>7).

What is a base buffer solution? These base solutions are used to maintain basic conditions. The base database has a basic pH and is prepared by mixing a weak base with its salt and strong acid. 

The pH of this is higher than 7; for example, the ammonium hydroxide and ammonium chloride mixture have a pH of 9.25. So, let’s take a look at base buffer preparation.

The preparation procedure of base buffer solutions

If constant dissociation of acid (pKa) and base (pKb) is known, the buffer solution can be adjusted by controlling the salt-acid ratio or the base salt level.

As discussed earlier, these solutions are prepared by mixing weak bases with corresponding conjugate acids or by mixing weak acids with their corresponding conjugate bases.

An example of this method of preparing buffer solutions can be given by phosphate buffer preparation by mixing HPO42- and H2PO4-. The pH maintained by this solution is 7.4.

The buffer solution can be prepared by controlling the acidity of the salt or a salt base if the DA (dissociation constants) of acid (pKa), as well as the base (pKb), are known. So, weak bases and weak acids, or conjugate acids, and their conjugate bases, are used to make these solutions: Handerson-Hasselbalch statistics and acidic bath preparation and basic storage. 

These bath solutions are used to maintain basic conditions. The base database has a basic pH and is prepared by mixing a weak base with its salt and strong acid. An aqueous solution of an equal mixing of ammonium hydroxide with ammonium chloride has a pH of 9.25. This was base buffer preparation.

Consider a base bath solution with a strong, salty acid (XY) and a weak base (Z). 

The final buffer solution can be:

pOH = pKZ +  log ([salt]/[base])

pOH of this basic buffer solution = pKy +  log ([salt]/[acid])

pH of this basic buffer solution = pKx – log ([salt]/[acid])

Base buffer preparation meaning with buffer solution uses: 

Base buffer preparation includes a weak base and its salt with strong acid, in addition to the base.

So what are the uses of the buffer solution?

  •     Buffer solutions are called by many different names, including pH baths and hydrogen ion baths.
  •     Many organisms use buffer solutions for maintaining a good pH of enzyme activity.
  •     Usage of bicarbonate and carbonic acid bath systems to control the pH of an animal’s blood is an example of a buffer used to control the pH.
  •     Enzyme activity may be inhibited, traits may be lost, or enzymes may change even in the absence of certain traits. This mutation process can completely shut down the stimulating activity of enzymes.

Conclusion

So this was all about base buffer preparation. We saw what a base buffer solution is and how it is prepared. It is a mixture of the base, salt, and acid. It can be prepared by mixing acids with the base, which already has salt. Then we saw the meaning and uses of it.

faq

Frequently Asked Questions

Get answers to the most common queries related to the JEE Examination Preparation.

What is a base buffer solution?

Answer- In easy language, it is a mixture of a weak base, acid with salt.

How do buffers work?

Answer- Buffers  work by making any extra acid (H...Read full

What is the formula of the base buffer solution?

Answer-The final solution, pOH = pKb +  log ([salt]/[base]) pOH of a basic buffer solution = pKb +  lo...Read full

The pH of the base buffer solution?

Answer-The pH of the base buffer solution is more than 7 as they are alkaline, which means they turn red litmus pape...Read full

How many types of bases can be according to the hydroxide ion present in the base?

Answer-Based on the number of available hydroxide ions, a base can be mono, di, tri acidic bases. ...Read full

Answer- In easy language, it is a mixture of a weak base, acid with salt.

Answer- Buffers  work by making any extra acid (H + ions) or base (OH-ions) to maintain a medium pH, making it a weak acid or base. Let’s take the example of a buffer made up of weak basic ammonia, NH3, and its conjugate acid, NH4 +. When HCl (strong acid) is added to this buffer system, additional H + ions are added to the system used by NH3 to form NH4+. Now, because all the extra H + ions are trapped and form weakened acid, NH4 +, thus the pH of the system does not change much. Similarly, when NaOH (solid foundation) is added to this buffer system, the ammonium ion contributes to the proton base to become ammonia and water, thus making the base easier without significant pH changes.

We can understand this by the following equation:
Acid + Base ⇌ Conjugate Base + Conjugate Acid

H2O (l) + NH3 (g) → OH− (aq) + NH4+
 

 

Answer-The final solution,
pOH = pKb +  log ([salt]/[base])
pOH of a basic buffer solution = pKb +  log ([salt]/[acid])
pH of a basic buffer solution = pKa – log ([salt]/[acid])

Answer-The pH of the base buffer solution is more than 7 as they are alkaline, which means they turn red litmus paper into blue. It has salt and then acid; also, it is the mixture.

Answer-Based on the number of available hydroxide ions, a base can be mono, di, tri acidic bases.
Mono basic: NaOH, NH4OH
Dibasic: Ca(OH)2, Zn(OH)2
Tribasic: Fe(OH)3, Al(OH)3

Crack IIT JEE with Unacademy

Get subscription and access unlimited live and recorded courses from India’s best educators

  • Structured syllabus
  • Daily live classes
  • Ask doubts
  • Tests & practice
Learn more

Notifications

Get all the important information related to the JEE Exam including the process of application, important calendar dates, eligibility criteria, exam centers etc.

Allotment of Examination Centre
JEE Advanced Eligibility Criteria
JEE Advanced Exam Dates
JEE Advanced Exam Pattern 2023
JEE Advanced Syllabus
JEE Application Fee
JEE Application Process
JEE Eligibility Criteria 2023
JEE Exam Language and Centres
JEE Exam Pattern – Check JEE Paper Pattern 2024
JEE Examination Scheme
JEE Main 2024 Admit Card (OUT) – Steps to Download Session 1 Hall Ticket
JEE Main Application Form
JEE Main Eligibility Criteria 2024
JEE Main Exam Dates
JEE Main Exam Pattern
JEE Main Highlights
JEE Main Paper Analysis
JEE Main Question Paper with Solutions and Answer Keys
JEE Main Result 2022 (Out)
JEE Main Revised Dates
JEE Marking Scheme
JEE Preparation Books 2024 – JEE Best Books (Mains and Advanced)
Online Applications for JEE (Main)-2022 Session 2
Reserved Seats
See all

Related articles

Learn more topics related to Chemistry
Zeolites

Aluminium silicate zeolites are microporous three-dimensional crystalline solids. Zeolites have small, fixed-size openings that allow small molecules to pass through easily but not larger molecules; this is why they are sometimes referred to as molecular sieves.

XeF6 Molecular Geometry and Bond Angles

In this article, we will learn about the XeF6 Molecular Geometry And Bond Angles in detail. We also learn the importance of XeF6 molecular geometry and bond angles importance and much more about the topic in detail.

XeF4 Molecular Geometry and Bond Angeles

A general overview of Lewis Structure, XeF4 Molecular Geometry and bond Angles meaning, valuable XeF4 Molecular Geometry and bond angle questions.

XeF2 Molecular Geometry and Bond Angles

Let us learn about the molecule XeF2, its molecular geometry and bond examples, and XeF2 Lewis structure.

See all
Access more than

10,505+ courses for IIT JEE

Get subscription
Challenge Yourself Everyday
Attempt 2023’s and previous year’s JEE Main
Download Important Formulas pdf
Attempt Free Test Series for JEE Main 2023

Trending Topics

  • JEE Main 2024
  • JEE Main Rank Predictor 2024
  • JEE Main Mock Test 2024
  • JEE Main 2024 Admit Card
  • JEE Advanced Syllabus
  • JEE Preparation Books
  • JEE Notes
  • JEE Advanced Toppers
  • JEE Advanced 2022 Question Paper
  • JEE Advanced 2022 Answer Key
  • JEE Main Question Paper
  • JEE Main Answer key 2022
  • JEE Main Paper Analysis 2022
  • JEE Main Result
  • JEE Exam Pattern
  • JEE Main Eligibility
  • JEE College predictor

JEE Coaching Centres

  • JEE Coaching in Nagpur
  • JEE Coaching in Ranchi
  • JEE Coaching in Gorakhpur
  • JEE Coaching in Bhubaneswar
  • JEE Coaching in Vijayawada
  • JEE Coaching in Dehradun
  • JEE Coaching in Indore
  • JEE Coaching in Gurugram
  • JEE Coaching in Muzaffarpur
  • JEE Coaching in Varanasi
  • JEE Coaching in Jammu
  • JEE Coaching in Kolhapur
  • JEE Coaching in Bikaner
  • JEE Coaching in Delhi Lajpat Nagar
Predict your JEE Rank
.
Company Logo

Unacademy is India’s largest online learning platform. Download our apps to start learning


Starting your preparation?

Call us and we will answer all your questions about learning on Unacademy

Call +91 8585858585

Company
About usShikshodayaCareers
we're hiring
BlogsPrivacy PolicyTerms and Conditions
Help & support
User GuidelinesSite MapRefund PolicyTakedown PolicyGrievance Redressal
Products
Learner appLearner appEducator appEducator appParent appParent app
Popular goals
IIT JEEUPSCSSCCSIR UGC NETNEET UG
Trending exams
GATECATCANTA UGC NETBank Exams
Study material
UPSC Study MaterialNEET UG Study MaterialCA Foundation Study MaterialJEE Study MaterialSSC Study Material

© 2026 Sorting Hat Technologies Pvt Ltd

Unacademy
  • Goals
    • AFCAT
    • AP EAMCET
    • Bank Exam
    • BPSC
    • CA Foundation
    • CAPF
    • CAT
    • CBSE Class 11
    • CBSE Class 12
    • CDS
    • CLAT
    • CSIR UGC
    • GATE
    • IIT JAM
    • JEE
    • Karnataka CET
    • Karnataka PSC
    • Kerala PSC
    • MHT CET
    • MPPSC
    • NDA
    • NEET PG
    • NEET UG
    • NTA UGC
    • Railway Exam
    • SSC
    • TS EAMCET
    • UPSC
    • WBPSC
    • CFA

Share via

COPY