Question 5 of 8 Question 5 of 8 Map da. General Chemistry 4th Edition McQuarrie

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Question 5 of 8 Question 5 of 8 Map da. General Chemistry 4th Edition McQuarrie • Rock · Gallogly University Science Books presented by Sapling Learning Available From: Not Set Due Date: 12/1/2017 11:5 Points Possible: 100 Grade Category Homework Description: Policies: Homework A critical reaction in the production of energy to do work or drive chemical reactions in biological systems is the hydrolysis of adenosine triphosphate, TP, to adenosine diphosphate, ADP, as described by ATP(aq) + H,0(1) ADP(aq) + HPO; (aq) for which AG" xn = - 30.5 kJ/mol at 37.0 °C and pH 7.0. Calculate the value of AG,xn in a biological cell in which (ATP) = 5.0 mm, (ADP) = 0.40 mm, and (HPO42-= 5.0 mm. O Number O AG. = kJ/mol You can check your answers. You can view solutions when you give up on any question. You can keep trying to answer eac until you get it right or give up. You lose 5% of the points available answer in your question for each i attempt at that answer. Is the hydrolysis of ATP spontaneous under these conditions? O yes O no O electbook O Help With This Topic o Web Help & Videos O Previous @ Give Up & View Salution o Check Answer o Next ] Exit O Technical Support and Bug Repo 9 Hint Inc. about us careers privacy policy terms of use contact us help e to search o 0 a 9 , E * a

Explanation / Answer

a)

dG = dG° + RT*ln(Q)

Q = [ADP][HPO4-2]/([ATP])

Q = (0.40*10^-3)(5*10^-3)/(5*10^-3) = 0.0004

dG = -30500 + 8.314*310*ln(0.0004)

dG = -50665.226 J/mol

dG = -50.66 kJ/mol

b)

yes, since dG < 0, this is spontaneous

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