Astudent did a simple and fractional distillation on a mixture of a and b. their starting mixture was 45.49% a. the first fraction of their simple distillation was 37.26% a and the first fraction of their fractional distillation was 12.14% a. how many theoretical plates did they have in their fractional distillation? type your numerical answer rounded to the 2nd decimal place (n. nn).