Set of videos explaining how to calculate Kc in equilibrium questions, aimed at around A-level or International Baccalaureate standard. Examples include propanoic acid and ethanol, hydrogen iodide and nitrogen dioxide.

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Propanoic acid + ethanol = ethyl propanoate + water

Hydrogen Iodide = Hydrogen + Iodine

N2O4 (g) = 2NO2(g)