Determine the net charge of the predominant form of Asp at (a) pH 1.0, (b) pH 3.0, (c) pH 6.0, and (d) pH 11.0.
1 answer:
Answer:
a) +1
b) 0
c) -1
d) -2
Explanation:
The aspartic acid is one of the twenty amino acids that make up proteins.
The equilibrium is in the image. pka for this molecule are 1.88, 3.65 and 9.60. A higher pH than pka will have as predominant form the molecule in the right and vice versa. The net charge in each molecule is in red.
Thus, for a pH of 1.0, as the pH is lower than first pka, predominant form will have a net charge of +1. If pH is 3.0, predominant form will have a net charge of 0. If pH is 6.0 predominant form will be the -1 and for a pH of 11.0, predominant form is the -2.
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Answer:
One mole of the hydrochloric acid requires one mole of hydroxide ions to be neutralized.
Explanation:
Hydrochloric acid is a very strong acid an it fully dissociates at all concentrations. The neutralization of hydrochloric acid is conventional and any inorganic base such as sodium hydroxide can be used. Having a one molar hydrochloric acid solution means that for each mole of hydrochloric acid produces one mole of protons requiring one mole of hydroxide hydroxide ions to neutralize.
This can be illustrated by the equation shown below.
