It would have be nice if Arsenal win and get Champion's League spot, that will only be possible if Tottenham Hotspur loses against Norwich FC. Those three losses in a row messed the season up for Arsenal, I think Arsenal should count their loss and look forward to Europa League, UEFA Champion's League is gone.
Arsenal may Missed the champions league spot next season due to their recent loss against Newcastle which they were defeated with 2 goals. Arsenal coach, Mikel Arteta would look forward to win the last game of the League, perhaps they could still qualify for the Champions League only if Tottenham loses their game. However, Anthonio Conte don't have a room for draw in their last game, they precisely need the win. If gunners failed to secure the champions league spot, they will settle for Europa League next season.
Tottenham only need a draw and that is enough for Tottenham to end the season in fourth place, because even though for example Tottenham draw and Arsenal win and then their points are equal but Tottenham have the advantage in the number of goals. So, maybe it could be the worst result for Tottenham, whereas in reality we will not doubt the quality of Tottenham right now. So yes, victory is a very possible result for Tottenham because the opponent is not very strong, although we don't underestimate Norwich but still, statistically Tottenham are clearly better.