Electronics help changing a soldered processor

[gregzz4]

I've ordered a new chip for a pcb I'm working on
It's a flash 256MB SRAM chip, and I've never changed one before
I have solder wick
I've been told to 'soak' something with acid before inserting the new chip
I'm assuming this means to soak the pcb in the area where I'll be soldering ?
Input here would be appreciated

I gather I should also be using an anti-static wrist band or similar, and not solder all 28 pins at once to avoid overheating the chip ...

Any other tips ?