Question- at pH 7, arginie (pks are alpha carboxylate 1.82, alpha amino 8.99, guanidino 12.48) would be charges as follows? How can you figure this out if you can't memorize the structure of the amino acid?
a. 0,0,+1, = 1 net charge
b. +1,0,01 =0 net charge
c. -1,0,+1 =0 net charge
Please carry out what you can and illustrate your work so I can follow. Thanks