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.
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 complete KS5 lesson including starter activity, main work task and answers on acids, bases and neutralisation. Suitable for the AQA and OCR Specification.
By the end of this lesson KS5 students should be able to:
LO1. To know the formula of common acids and alkalis
LO2. To explain the action of an acid and alkali in aqueous solution and the action of a strong and weak acid in terms of relative dissociations
LO3. To describe neutralisation as a reaction of:
(i) H+ and OH– to form H2O
(ii) acids with bases, including carbonates, metal oxides and alkalis (water-soluble bases), to form salts, including full equations
All tasks have worked out answers which will allow students to self assess their work in the lesson
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 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 revision mat is based on the AQA specification for acids and bases.
There is one example of every type of questions that may be asked, on definitions, pH of a strong acid, strong base, weak acid, titration curves and what to look out for when sketching. how to use the titration curves. Also it point out when to x2 or divide by two in the pH calculations.
Much of the information has come from the examiner reports and common mistakes.
My students have found these mats very useful and have asked me to produce one on every topic.
This document come with the answers.
KS3 Science Edexcel Yr7 Revision Spread and Answer Sheet - Chemistry: 7F Acids and Alkalis.
This A4 revision spread condenses the Edexcel topic 7F onto one A4 sheet which can be printed off and filled in to aid revision and help summarize the topic.
A full answer sheet is provided which can be used to mark the filled in revision spread and can also be used as a revision poster.
A presentation suitable for KS4 looking at acids and bases. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation.
Learning Objective(s):
Explore acids and bases.
Main Skills: Interpret written text and diagrams.
Duration: Approximately 30 mins
25 slides covering:
• Theories of Acids and Bases
• Amphoteric Substances
• Lewis Model
• Neutralisation
11.1 Acids and bases
11.2 A closer look at acids and alkalis
11.3 The reaction of acids and bases
11.4 A closer look at neutralisation
11.5 Oxides
11.6 Making Salts
11.7 Making insoluble salt by precipitation
11.8 Finding the concentration by titration
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.
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.
A presentation suitable for KS4 looking at strong and weak acids and bases. Presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation.
Learning Objective(s):
Explore the difference between strong and weak acids and bases.
Main Skills: Interpret written text, diagrams, tables and chemical equations.
Duration: Approximately 30 mins
12 slides covering:
• Strong Acids and Bases
• Strong Bases
• Weak Acids and Bases
• Acids and Bases Strengths
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.
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.
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