A structured KS5 lesson including starter activity, AfL work tasks and main work task all with answers on Bronsted Lowry Acids and Bases
By the end of this lesson KS5 students should be able to:
To describe the difference between a BrØnsted Lowry acid and base
To identify conjugate acid-base pairs
To explain the difference between monobasic, dibasic and tribasic acids
To understand the role of H+ in the reactions of acids with metals and bases (including carbonates, metal oxides and alkalis), using ionic equations
Declaimer: Please refrain from purchasing this popular resource for an interview lesson or a formal observation. This is because planning your own lessons, including using your own lesson PowerPoints, is a fundamental skill of a qualified/unqualified teacher that will be assessed during the scenarios outlined above
This complete year 12 resource on acid-base titrations includes the practical procedure and calculations for titrations as well as details of evaluating experiments. It features a 28 slide interactive PowerPoint that illustrates the concepts in a lively, visual and systematic way. The resource includes a starter, learning checks, clearly explained examples of calculations, a practical activity with evaluation and a plenary. A 20 page worksheet includes a variety of structured and unstructured calculations and answers to all exercises. Ideal for the classroom or blended learning, this resource could be used to present the topic, or for revision, extension or consolidation.
This lesson is part of a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 2 – Foundations in chemistry
Part 1 – Atoms and reactions
2.1.4 – Acids (part)
Content covered:
• Titration and uses
• Standard solution
• Glassware and procedure for titration with detailed hints for technique
• Reading burette
• Recording titration results and calculating the mean
• Titration calculations
• Examples of structured and unstructured calculations
• Revision of calculations involving masses and volumes
• Practical titration activity
• Evaluation of titration experiment
• Uncertainties and calculating % uncertainties
• Procedural errors
Duration: 2 lessons
Please review!
Links
Previous topic: Topic 11 – Acids and bases (free resource)
https://www.tes.com/teaching-resource/acids-and-bases-ocr-as-chemistry-12747201
Next topic: Topic 13 – Redox
https://www.tes.com/teaching-resource/redox-ocr-as-chemistry-12409890
Related topics
Topic 8 − Moles and concentration of solutions
https://www.tes.com/teaching-resource/moles-and-concentration-of-solutions-ocr-as-chemistry-12391026
Topic 9 – Moles and reactions
https://www.tes.com/teaching-resource/moles-and-reactions-ocr-as-chemistry-12404411
Bundle − Moles, masses, concentrations, gas volumes and reactions
https://www.tes.com/teaching-resource/moles-masses-concentrations-gas-volumes-and-reactions-12404451
This powerpoint is matched to the NEW A level specification and is designed to summarise the key points for the NEW AQA acids and bases topic as part of Physical Chemistry 2 module. This can be used by students on intranet systems and has links to FREE revision videos to back up the content on the powerpoint too.
An edible revision poster summarising the key-points covered on acids and bases
This concise 1 page summary includes information on;
definitions - acid and base
examples of acid and base
need for hazard symbols when handling/using acids and bases
examples of hazard symbols
pH scale
types of indicators
use of pH meter
neutralisation and formulae.
My students stick this revision poster/chart into their copy book at the start or end of the chapter content delivery. I use these revision posters to show students the importance of chunk revising. They spend time recalling/memorising the key-points. I encourage students to use this revision resource to create their own revision resource (mind-map/flashcards/sketch notes/audio recordings etc.) to suit their learning style.
*See ACid and bases reactions posters for more work on reactions between acids and bases, naming salts and practical skills.
Broadsheet made for the AQA scheme but will work for OCR. Revision broadsheet that covers: Acids, bases, strong/weak acids, ions, neutralisation, equations, soluble salts, insoluble salts.
10 Full Lesson Bundle + BONUS lesson on Acids, bases & buffers. This bundle covers the OCR A Level Chemistry specification. Please review the learning objectives below.
Lesson 1: Bronsted-Lowry Acid and Bases
To describe the difference between a BrØnsted Lowry acid and base
To identify conjugate acid-base pairs
To explain the difference between monobasic, dibasic and tribasic acids
To understand the role of H+ in the reactions of acids with metals and bases (including carbonates, metal oxides and alkalis), using ionic equations
Lesson 2: Strong Acids & The pH Scale
To calculate the pH of a strong acid
To convert between pH and [H+(aq)]
To apply the relationship between pH and [H+(aq)] to work out pH changes after dilution
**Lesson 3 - The Acid Dissociation Constant **
To understand the acid dissociation constant, Ka, as the extent of acid dissociation
To know the relationship between Ka and pKa
To convert between Ka and pKa
Lesson 4- pH of weak acids
To recall the expression of pH for weak monobasic acids
To calculate the pH of weak monobasic acids using approximations
To analyse the limitations of using approximations to Ka related calculations for ‘stronger’ weak acids
Lesson 5 - The ionic product of water
To recall the expression for the ionic product of water, Kw (ionisation of water)
To calculate the pH of strong bases using Kw
To apply the principles for Kc, Kp to Kw
Lesson 6-9 - Buffer Solutions (3 part lesson)
Part 1: Explaining How Buffer Solutions Work
To know a buffer solution is a system that minimises pH changes on addition of small amounts of an acid or base
To describe how a buffer solution is formed using weak acids, salts and strong alkalis
To explain the role of the conjugate acid-base pair in an acid buffer solution such as how the blood pH is controlled by the carbonic acid–hydrogencarbonate buffer system
Part 2: Buffer Solution Calculations (Part 1)
To calculate the pH of a buffer solution containing a weak acid and the salt of a weak acid by using the Ka expression and pH equation
To calculate equilibrium concentrations, moles or mass of the components of a weak acid-salt of a weak acid buffer solution
Part 3: Buffer Solution Calculations (Part 2)
To calculate the pH of a weak acid-strong alkali buffer solution
To calculate equilibrium concentrations, moles or mass of the components of a weak acid- strong alkali buffer solution
BONUS Lesson 9 : Revision on Buffer Solutions
To review how to calculate the pH of a buffer solution containing a weak acid and a strong alkali
To review how to calculate the pH of a buffer solution containing a weak acid and the salt of the weak acid
Lesson 10- Neutralisation & Titration Curves
To interpret titration curves of strong and weak acids and strong and weak bases
To construct titration curve diagrams of strong and weak acids and strong and weak bases
**Lesson 11- pH indicators & Titration Curves **
To explain indicator colour changes in terms of equilibrium shift between the HA and A- forms of the indicator
To explain the choice of suitable indicators given the pH range of the indicator
To describe an experiment for creating a titration curve
Declaimer: Please refrain from purchasing this popular resource for an interview lesson or a formal observation. This is because planning your own lessons including using your own lesson PowerPoints is a fundamental skill of a qualified/unqualified teacher that will be reviewed during these scenarios outlined above
A lesson where students will investigate the meanings of Arenhuis and Lowry-Bronstead theories.
Students will also calculate the concentration of acids using exam style questions.
A revision homework or class worksheet with answers that covers Acids and Bases in C4 GCSE Chemistry.
Topics include Calculating H+ Concentrations, Alkali and Strong or Weak Acids with a variety of questions and challenging calculations.
Get ✨ 20% off ✨ this resource with the discount code EXTRA20: Acids and Bases Home Learning Worksheet GCSE
Tes bundles containing this resource:
80 Homework Sheets Ultra Bundle GCSE Chemistry (AQA)
8 Sheet Chemical Changes Home Learning Bundle GCSE
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What’s included? 👀
1 Revision/worksheet with a variety of different questions
1 Answer sheet with solutions
Which content does it cover? 📚
This practice sheet covers part of Topic 4 of Chemistry - Chemical Changes
It’s designed for both GCSE Triple Award Science (separate sciences) and Double Award Science (combined science) students.
It’s optimised for the AQA Grade 9-1 Specification 2016 onwards
It is also suitable for lower ability students but gets increasingly challenging
This packet covers the following learning objectives through simplified one-page readings, virtual labs, guided inquiry, researching secondary database etc. Includes a formative after every lesson and guidelines for a project based summative.
Define Arhennius acid and base.
Identify acid and base from their formula.
Describe characteristic properties of acids in their reaction with metals, metal oxides and hydroxides and metal carbonates
Describe the characteristic properties of bases in their reaction with acids and ammonium salts.
Understand the pH scale as a figure expressing the acidity or alkalinity of a solution.
Apply knowledge of indicators (Litmus, Methyl Orange and Universal Indicator) to determine pH of solutions.
Differentiate between strong and weak and concentrate and dilute acids and alkali.
Discuss acid rain and ocean acidification.
This reading comprehension passage is about Acids and Bases. Through this passage students will learn about questions like:What is Acid and Base? What are the properties of Acids and Bases? How do we identify the acid and base nature of substances? What is pH Scale?
In our classroom, we have found that reading comprehension passages are great at engaging students. They also fit very well as introductory activities and homework. Early finishers also love these passage and questions.
What is all included?
✔ Reading Passage on Acids And Bases (PDF)
✔ 10 Multiple Choice Questions
✔ Answer Key for MCQs
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This worksheet is the perfect way for helping your students learn and review Acids, Bases, and the pH Scale.
What is included in this resource?
Printable and editable Student Worksheet (PDF and Word document)
Paperless digital version for use in Google Drive (Prepared with Google Slides)
Complete Answer Key
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