The monoprotic buffer compound has a pKa of 7.4. Dr. Seagull added 30. mL of 1.0 M sodium hydroxide to 100. mL of a 1.0 M solution of the weak acid form of the buffer. What is the pH of this prepared solution

Four statements about the development of the atomic model are shown below. a: electrons have wavelike properties. b: atoms have small, negatively charged particles. c. the center of an atom is a small, dense nucleus. d: atoms are hard, indivisible spheres. which order of statements represents the historical development of the atomic model? c-d-a-b c-d-b-a d— в-а — с d-b-c-a