Avogadro’s gas law calculation questions with molar and volume ratios. How to calculate volume of gases in a reaction mixture after a reaction? This lesson shows you how! Suitable for A level and IB SL/HL Chemistry. 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 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 – Introduction to Amedo Avogadro
Slide 4 – What is the Avogadro gas law?
Slides 5 – What does the Avogadro gas law mean in principle?
Slide 6 – Worked example 1: Carbon dioxide and carbon react to form carbon monoxide:
CO2(g) + C(s) --> 2CO(g). 1 dm3 of carbon dioxide is reacted with an excess of carbon to form carbon monoxide. What volume of carbon monoxide is formed? Answer with working out animates onto the screen
Slides 7 – 8: Printable version of worked example 1 for students
Slide 9 – Worked example 2 (slightly harder example)
Slides 10 – 11: Printable version of worked example 2 for students
Slide 12 – Worked example 3 (harder still, involving excess and limiting reagents)
Slides 13 – 14: Printable version of worked example 3 for students
Slide 15 – Worked example 4 (red hot – very difficult, step-by-step solution is animated onto the screen)
Slides 16 – 17: Printable version of worked example 4 for students
Slide 18 – Solution to worked example 4 continues on this slide (such is its complexity!)
Slide 19 – Mini plenary. Short independent learning task to check students’ learning
Slide 20 – ALT (Applied Learning Time). Longer independent learning task, where students can demonstrate what they have learnt in your lesson
Slides 21 – 22: Printable version of ALT questions
Slide 23 – ALT answers
Slide 24 – working out to answers
Slide 25 – Bonus stretch and challenge question, with answer
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The sheer number of worked examples for each calculation made this resource invaluable, especially for my group, who are not strong mathematicians. Thanks!
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