Question

How does mass affect star formation?

Answer 1

Available mass determines how fast a proto-star will condense into a star, and what type of star it will be.

Explanation:

This also affects the life-cycle of the star and the final form it will take.
See https://leescience8.wikispaces.com/Stars,+Galaxies,+and+the+Universe
for the following chart and other descriptions.