Sciencemadness Discussion Board

Mg displacing K

lacrima97 - 28-7-2006 at 21:11

How is Mg going to displace K? I don't understand this.

http://www.destructve.com/bromicacid/experiments/december200...

guy - 28-7-2006 at 22:24

This not aqueous chemistry. MgO is a much stabler compound than KOH and H2 is the driving force. Calculate the G value for this.

not_important - 29-7-2006 at 01:39

Indeed, you need to consider all aspects of the reaction. Remember that in Victorian times, sodium and potassium were made by heating the carbonates mixed with carbon or iron to a high temperature.