1)
Seeing as the oil is in the Kohen's left palm, why does the Torah se fit to insert the word "Etzba'o ha'Yemanis",which is obvious?
1.
Menachos, 10a: To teach us that, whenever the Torah uses the word "Etzba" or 1 'Kehnnah', it means the right finger.
1
See Torah Temimah, note 79.
2)
What are the implications of "Vehizah ... Sheva Pe'amim"?
1.
Sifra: It implies seven full sprinklings as opposed to seven drops. Consequently, the Kohen is obligated to dip his finger into oil before each sprinkling.
3)
What does "Lifnei Hashem" mean here?