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lele142018
12.12.2020 •
Chemistry
In this activity you will use the virtual lab to determine the concentration of a strong monoprotic acid. To do this, you can perform a titration using NaOH and phenolphthalein found in the virtual lab. (Note: The concentration of the acid is between 0.025M and 2.5M so you will need to dilute the NaOH solution so that the volume to reach the endpoint is between 10 and 50 mL). Once you have determined the concentration of the acid, please enter your answer into a form at the bottom of this page.
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Ответ:
Please provide a snip of the pdf
Ответ:
ΔG = -21.9kJ/mol
Explanation:
It is possible to make an algebraic sum of the ΔG's of the semireactions to obtain ΔG of a reaction.
If semireactions are:
(1) 1,3-Bisphosphoglycerate + ADP → 3-Phosphoglycerate + ATP ΔG = 0.1 kJ/mol
(2) 3-Phosphoglycerate → 2-Phosphoglycerate ΔG = 0.8 kJ/mol
(3) 2-Phosphoglycerate → Phosphoenolpyruvate + H₂O ΔG = 1.1 kJ/mol
(4) Phosphoenolpyruvate + ADP + H⁺ → Pyruvate + ATP ΔG = -23 kJ/mol
The sum of (3) + (4) gives:
2-Phosphoglycerate + ADP + H⁺ → Pyruvate + ATP + H₂O
And the net change in free energy is:
ΔG = 1.1 kJ/mol + (-23kJ/mol) = -21.9kJ/mol
I hope it helps!