I know what the answers at (1=A, and 2=C) but i dont understand why. please help with a deatiled explaination of why

Home work questions 1. What is the overall charge on the side chain of lysine when one third (33%) of the side chains are deprotonated? A. +0.67 B. +0.33 C. -0.33 D. -0.67 depro 2. What is the overall charge on the side chain of aspartate when one quarter (25%) of the side chains are deprotonated? A. +0.75 B. +0.25 C. -0.25 D. -0.75 HORSE Amino acid analysis Amino acid analysis helps to determine protein structure Analysis involves two processes: 1. of a mixture into components 2. of the components Mixture in solution ADB A BDC Separate tort