# Ionic strength / M | Mean activity Coefficient 0.000 1.000 0.003 0.886 0.006 0.846 0.015 0.777 0.030 0.712 0.060 0.637 0.150 0.529 0.300 0.446 0.600 0.366 1.500 0.268 3.000 0.204 6.000 0.155