investigating le chateliers principle using 3 named experiments - created from Mind Map

Seite 1

PART A: cocl + 6h o + co(h o ) +4cl

1. dissolve cobalt chloride crystals in 10cm3 of water in a boiling tube

2. use the fume hood and slowly add with a dropper conc. hydrochloric acid.

3. add water until the colour of the solution changes from blue to red.

4. effect on the temperature

dark red solution given

dark colour is caused by ions.

equilibrium set up:

conc. HCL shifts the equilibrium to the right side

adding the conc. HCL increases the conc. of CL ions.

kepping with chateliers principle: conc. of these ions are decreased by backward reaction taking place

Equilibrium shifts to the right hand side as the forward reaction absorbs the stress of the increased conc. of water.

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investigating le chateliers principle using 3 named experim…