As long as barcelona can consistent and yeah the chance is very big. It's caused by once barcelona will always be winning the upcoming match and barcelona will always have gap to the real madrid until end of season. La liga can be taken by barcelona easily without any doubt. Real madrid needs more than a miracle to see barcelona lose points. Real madrid has no chance other than become even more consistent compared with barcelona caused by it was having almost 9 points gap which is also worth three matches.

Barcelona must also try to face MU without some important players due to the injury. That being said if barcelona will not able to give its best performance against MU. Barcalona might win against cadiz easily but cadiz was not MU.
The level from both of clubs actually different.