KS4 Starter © Snapshot Science, 2010Snapshot Science Image credit: André Karwath (Wikipedia commons) Calculate its RMM (CH 3 ) 2 CHCHCH(CH 2 ) 4 CONHCH.

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Presentation transcript:

KS4 Starter © Snapshot Science, 2010Snapshot Science Image credit: André Karwath (Wikipedia commons) Calculate its RMM (CH 3 ) 2 CHCHCH(CH 2 ) 4 CONHCH 2 C 6 H 3 (OH)(OCH 3 ) Capsaicin is the chemical in chillies which gives them their heat. This is it’s structural formula:

KS5 Starter © Snapshot Science, 2010Snapshot Science Image credit: André Karwath (Wikipedia commons) Calculate its RMM Capsaicin is the chemical in chillies which gives them their heat. This is it’s structure:

Activity © Snapshot Science, 2010Snapshot Science The hotness of a chilli is measured using the Scoville scale. Scoville scale The Bhut jolakia is currently the world’s hottest chilli at SHU (Scoville heat units) g/l of capsaicin is the equivalent of 15 SHU. The Infinity chilli is a new chilli bred in the UK. It’s capsaicin concentration has been measured at 0.256M. What is its SHU? Do we have a new world record?