Orders of magnitude, estimation and analogy in Chemistry... How do you convey to your students the scale of numbers indicated by the mole? One way is to use an analogy I've often introduced the mole using an analogy and have used many examples over the years. Here's a selection you may want to consider... Raindrops We'll change this to cubic kilometres using a conversion factor... The volume of 1 mole of raindrops will be 24 million cubic kilometres. The estimated volume of

From vibrant dyes to volatile disasters - trinitrophenol’s unstable legacy. Few substances in human history have been both so brilliantly useful and so terrifyingly dangerous as picric acid. This humble-looking yellow crystalline compound, formally known as trinitrophenol (TNP), has lurked in the shadowy corridors of chemistry for well over two centuries, causing as much chaos as it has progress. It’s a chemical that epitomises humanity’s knack for fiddling with dangerous thi

Fritz Haber: Science & War Welcome to our new series, "Bad Boys of Science", where we look into stories of scientists whose contributions...

The Great Smog of 1952 stands as a disturbing chapter in London's history,

AS P2 2019 Q24 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...

AS P2 2019 Q23 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...

AS P2 2019 Q22 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...

AS P2 2019 Q21 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...

AS P2 2019 Q20 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...

AS P2 2019 Q19 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...

AS P2 2019 Q18 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...

AS P2 2019 Q17 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...

AS P2 2019 Q16 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...

AS P2 2019 Q15 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...

AS P2 2019 Q14 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...

AS P2 2019 Q13 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...

AS P2 2019 Q12 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...

AS P2 2019 Q11 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...

AS P2 2019 Q9 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...

AS P2 2019 Q10 Part of a series looking at past AQA AS-level Chemistry questions. If you haven't gone through the question/paper, click...