1)
Having written "es Par ha'Chatas asher Lo" in Pasuk 6, why does the Torah repeat it here twice?
1.
Yoma 51b: Refer to 16:6:2:1. Once, to teach us that if he purchases his bull with public funds or with the money of his fellow Kohanim, it is Pasul (and once to incorporate purchasing the bull wih money of Ma'aser Sheini in the prohibition - Menachos, 83a). 1
1
See Torah Temimah, note 27, who elaborates.
2)
What are the connotations of "Vechiper Ba'ado"?
1.
Rashi, Seforno and Targum Yonasan: It refers to the second Viduy 1 that he made over his bull.
3)
What are the connotations of the words "Vechiper Ba'ado u've'Ad Beiso"?