Gravimetric SAC on chloride in HCL brick cleaner

[skybluemaniac]

Anyone have any advice for this sac? I've got all the possible errors all planned out..any tips for the written compenent? Thanks in advance

[Lizzy7]

I haven't done that SAC before but you should expect stoichiometric and composition calculations. A question may ask what is the % composition of Cholride in the brick cleaner etc.

There may be other questions asking what properties does the precipitate need to have e.g. known molar mass, stable when heated etc.

You may also be asked to draw a flowchart outlining the key steps (heating to constant mass, washing with de-ionised water to rid of impurities) etc. 

[skybluemaniac]

I haven't done that SAC before but you should expect stoichiometric and composition calculations. A question may ask what is the % composition of Cholride in the brick cleaner etc.

There may be other questions asking what properties does the precipitate need to have e.g. known molar mass, stable when heated etc.

You may also be asked to draw a flowchart outlining the key steps (heating to constant mass, washing with de-ionised water to rid of impurities) etc.

thanks! I already did the sac haha! it was ok but I got an overstated result and they asked how to prevent it next time. I have no idea how to prevent potential coprecipitation..