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Curated Video
Endothermic Reaction
We demonstrate an endothermic reaction by mixing hydrated barium hydroxide with ammonium thiocyanate. When these two solids react they take heat from the surrounding air. Chemistry - Reactions - Learning Points. Breaking bonds takes in...
ProTeachersVideo
KS3/4 Science: Banging Chemistry: Fast and Furious
Trainee teacher Emma Bradley is shown a series of nine quick-fire exo- and endo-thermic reactions by Dr Kay Stephenson from the Royal Society of Chemistry and Simon Quinnell of the National Science Learning Centre, York. The...
Khan Academy
Khan Academy: Titration Calculation Example
An example of titrating a strong acid, hydrochloric acid, with a strong base barium hydroxide. Learn how to calculate the unknown concentration when you don't have a 1:1 molar ratio of H+ to OH-. [7:50]