View All num of num See all Photos Amgen This employer has taken extra steps to respond to reviews and provide job seekers with accurate company information, photos, and reviews. Interested for your company?Learn More. www.amgen.com Employer Engaged Overview Reviews Salaries Interviews Jobs Photos Benefits 776 Reviews 2.0k Salaries 167 Interviews 546 Jobs Follow Add Review or Salary Follow Add Review or Salary Interview Question Research Associate Interview Thousand Oaks, CA Amgen I was asked to define pKa and give an example of the pKa of an acid. It was very straight forward. Tags: See more , See less 8 Answer Add Tags Answer Add Answers or Comments To comment on this, Sign In or Sign Up.