Dutch passport holder, visiting vietnam for vacation and needing to do student visa to china

I am a dutch passport holder and i am visiting vietnam, I have applied and have been accepted into Fudan university for their summer session and currently I am waiting for the acceptance letter. By the time i have the acceptance letter i will be in vietnam, will i be able to apply for a chinese visa once i am in vietnam? If possible is it better for me to apply for the visa in Ho chi min city or Hanoi?