A rather tame ltxnsp was recently found on Easter Island by a retired neurophysiologist. He reported the following measurements of ECF and ICF concentrations (in millimoles):
ICF ECF
Pr+ 0 150
Na+ ? ?
K+ 10 100
Cl- 109 250
HCO3- 1 10
a) He lacked the proper instruments for determining Na+ concentrations, but was rather certain that no other major ions were present in the ECF and ICF. Can you calculate either concentration for him