Unit 10.4.6 - Endothermic processes
The class is provided with samples of the following salts:
They are to write out the formula of each with its relative mass (taking into account water of crystallisation if necessary)
They are to dissolve known masses of each in samples of water in a polystyrene beaker, recording before and after temperature.
Extension activity (requires lots of crushed ice and sodium chloride)
Competition between groups to find the best proportions of ice/water/salt* for the coldest temperature. (*sodium chloride)
Student follow up
Experimental write up on endothermic reactions