Question 25 of 25 > Attempt 2 – To answer this question, please reference the Problem Solving Video: Free Energy, ATP, and Creatine in Resting Muscles. The standard free energy (AG”) of the creatine kinase reaction is – 12.6 kJ mol”. The AG value of an in vitro creatine kinase reaction is -0.1 kJ mol”. At the start of the reaction, the concentration of ATP is 5 mM, the concentration of creatine is 17 mm, and the concentration of creatine phosphate is 25 mM. Using the values given, calculate the starting concentration of ADP in micromolar. (ADP) =