(Solved): The pKa1 of glutamic acid (glutamate) is about 2.2, which means that if this amino acid is in a sol ...

The pKa1 of glutamic acid (glutamate) is about 2.2, which means that if this amino acid is in a solution at $$\mathrm{pH}=$$ $$2.2$$ then percent (a two digit number) of the backbone carboxy groups will be protonated. QUESTION 5 Which is true about pKa 1 and pKa 3 of glutamic acid? both pKa 1 and pKa 3 describe the rates at which acids cause caustic breakdown of glutamate pKa1 is higher than pKa2 pKa 1 describes the backbone carboxy group, but pKa 3 describes the R-group's (side chain's) carboxy group pKa 1 describes the amino nitrogen and pKa 3 describes the backbone carboxy group Click Save and Submit to save and submit. Click Save All Answers to save all answers.