

What are concordant titres? What is the equation for concentration? What is a back titration? How is the concentration of the unknown solution found using a primary standard? All this and more covered in this comprehensive lesson with questions and answers! This is a Year 12 A level lesson for Edexcel International Unit 2 – WCH12, but it can also be used for all UK exam boards. All the slides in this lesson are fully animated and include answers to every mini plenary question and exam question. The breakdown of the slides (which are best opened on Microsoft PowerPoint) is as follows:
Slide 1 - Title and 5-minute starter. The starter is a grid of four questions entitled ‘last week, last lesson, today’s learning and future learning’. Use this generic slide for all of your lessons by simply changing the questions and the answers each time.
Slide 2 - Lesson objectives (see thumbnail image)
Slide 3 – A table showing students how to select concordant titres amongst a data set
Slide 4 – This slide shows how the mean titre is calculated
Slides 5 - This slide shows the step by step calculation of how to find the concentration of the hydrochloric acid. Each step animates onto the screen as you click
Slide 6 - A worked example of how to find the concentration of hydrochloric acid. Students can attempt on mini whiteboards, working out animates on the screen as you click.
Slide 7 - I have provided some space on this slide in case you want to live model the working out to the previous worked example
Slide 8 – 10: Applied learning time (ALT): this is an exam style question which allows students to gain some independent practice. Mark scheme answer animates onto the screen as you click
Slides 11 – 17: Exam questions with mark scheme answers (included with the purchase of this resource)
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