I'm sure you can with the right wall mounting hardware. Below are a few products that will work.
Insignia - Full-Motion Wall Mount for 47" - 90" TVs up to 130 lbs. - Extends 25.2 - Black
(678)
Dynex - 47" - 75" Full Motion TV Wall Mount - Black
(4,415)
Chief - Large Thinstall Tilt Wall Mount - Black
(1)