Jumpt Gra 12/3/2017 11:55 PM 12.7/1512/3/2017 09:04 PM Print CalculatorPeriodic

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Jumpt Gra 12/3/2017 11:55 PM 12.7/1512/3/2017 09:04 PM Print CalculatorPeriodic Table Map University Science Books presented by Sapling Leaming General Chemistry 4th Edition A critical reaction in the production of energy to do work or drive chemical reactions in biological systems is the hydrolysis of adenosine triphosphate, ATP, to adenosine diphosphate, ADP, as described by ADP(aq) + HPO:-(aq) for which MG'm=-30.5 kJ/mol at 37.0 and pH 7.0. Calculate the value of .n in a biological cell in ATP(aq) + H2ojr) which [ATPl 5.0 mM, [ADP]-0.50 mM, and [HPO1-5.0mM Number 11-39.031 | 6,1.- kJ/ mol Is the hydrolysis of ATP spontaneous under these conditions? yes O no There is additional feedback on the View this feedback bottom divider bar on the divider bar again to hide the additional teedback Close Previous # Try Again NextExit about us careers privacy policy terms of use contact us help FS F7 FB

Explanation / Answer

Using,

dGrxn = dGo(rxn) + RTlnK

with,

dGo(rxn) = -30500 J/mol

R = gas constant

T = 37 oC + 273 = 310 K

K = [ADP][HPO4^2-]/[ATP]

we get,

dGo(rxn) = -30500 + 8.314 x 310 ln(0.5 x 5/5)

= -32.30 kJ/mol

The reaction spontaneous at given conditions,

Yes

dGo(rxn) -ve suggests reaction is spontaneous

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