1. What’s the difference between activity and concentration? <span>Activity is an effective concentration wher ion-ion and ion-H2O interactions are accounted for. Concentration is related to activity by: a = yc </span><span> 2. At what condition they become same? </span><span>They can be equal when y=1 especially when dealing with dilute aqueous solutions. </span><span> 3. Why do we need activity at all? </span><span>Activity is important because it accounts all of the interactions available. </span><span> </span><span>4. Why can’t we simply use concentration? </span><span>This is because concentration is an idealized expression it does not account of all the interactions present.</span>
