Answer Happy

The ionic strength 1 of aqueous solutions is sometimes adjusted by adding buffers or inert background salts to solutions. In relation to the concept of ionic strength select the statements below which are true. lonic strength is sometimes adjusted to ensure that the activity coefficient for the ion of interest will stay relatively constant a range of concentration values. Activity a and Concentration C are the same and so adjusting the ionic strength of solutions is optional. The activity of an ion in solution is sometimes lower than it's concentration but it can never be higher The activity of an ion in solution is always higher than its concentration and is never lower. The ionic strength 1 of a solution influences the activity coefficients of the ions of interest and hence the ion's activity. The activity of an ion in solution may not be the same as its concentration but they are related to each other by the activity coefficient. lonic strength is sometimes adjusted to ensure that the activity coefficient for the ion of interest will vary over a range of concentration values. Ionic strength is always obtained by adding together all the different salt concentrations (molarities) in a solution.