Same as Tottenham, Arsenal is also in must win situation in this round.
They have maybe more dfificult game because that are playing away against QPR. They have strong team on paper but QPR played very bad in all season and they will be relegated.
Arsenal is on 4th place currently that secure champions league and they have two points more then Tottenham, but Tottenham played one game less then Arsenal that mean that Arsenal must win all game til end of season if they want finish on 4th place.
They will play last game away against New Castle but only 4 round before end of season Arsenal have not luxury for calculation and must win all last 4 games.
Giroud is suspended for Arsenal but they have not big injure problems before this game. QPR is surely without motivation and they are in very bad form with 0-2-3 in last 5 games. I think that Arsenal will win in this game.