Answer:
This question is incomplete, there is no structure format. Nevertheless a complete description and solution to this problem is given below.
Explanation:
Aminoacids are organic compounds that contain at least one amino-group and one carboxilic group. Depending on the pK´s of the aminoacid and the pH of the solution in which it is solved, these two groups exist in an acid or a basic form. It means that, if an aminoacid is solved in a solution with a pH lower than its pK, the aminoacid will exists in its acid form; while if the solution has a pH greater than the pK value, aminoacid will exists in its basic form.
As the problem states, the aminoacid glycine (H2N-CH2-COOH) has pK values of 2.35 (carboxilic group) and 9.78 (amino-group). Here we have two different scenarios (solutions with different pH):
- pH of the solution is 2.7: The value of pH is greater than 2.35 and lower than 9.78, so the structure of glycine will be the one of figure 1a (attached)
- pH of the solution is 10 : The pH value of the solution is greater than both pK, so the structure of glycine will be the one of figure 1b.
