Question
Use the mean salt method and the table provided to calculate the concentration (M SO4 ) and activity of SO4 2- (a SO4 ) in
Use the mean salt method and the table provided to calculate the concentration (MSO4) and activity of SO42- (aSO4 ) in a water solution containing only Na+ and SO42- ions with an ionic strength of 0.7 M. The mean activity coefficient of K2SO4 is: K2SO4 = 0.37. Assume that no interactions occur between the ionic species beyond diffuse (unspecific) electrostatic forces.
Activity coefficients of individual species (in aqueous solution of ionic strength 0.70 M, at 25 degrees C):
| Dissolved Species | Activity Coefficient (i) |
| Na+ | 0.76 |
| HCO3- | 0.68 |
| K+ | 0.64 |
| Mg2+ | 0.36 |
| Ca2+ | 0.28 |
| CO32- | 0.20 |
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Organic Chemistry With Biological Applications
Authors: John E. McMurry
3rd Edition
1305367448, 978-1305367449
