ALEKS - Calculating the solubility of an ionic compound when a complex may form

[@Stuckinthepow]

this was a great explanation ! was able to get past this topic without any mistakes! keep the instructional videos coming brother!

[@chelsea9013]

Thanks a million, Tony! So why couldn't we use the concentration of the Br- ion (Ksp) in the final ice table for the last calculation?

[@TonyStJohn]

Hi! If I'm understanding your question correctly - I think the easiest explanation is that we should treat these as two separate problems, and in the second one we're really setting things up "from scratch" aka "starting the calculation over" - you are right to think that the Br- ion is going into solution based on the Ksp calculation, but that is sort of being automatically taken into account in the second calculation when we combine the equilibrium expressions. I hope that makes at least a little bit of sense!

[@chelsea9013]

@@TonyStJohn I understand, since we multiplied our two K values it considers the Br- concentration. Thank you for the speedy response!

[@watt.da.k3l]

Thanks! You should go over the topic "Writing a complex ion formation constant expression"

[@shihtzutoy1]

Run for your lives! It's Aleks!

[@civicstestandn-400applicat3]

Please make a video about "Using Kf to calculate the equilibrium molarity of a complex" in ALEKS many students are struggling and there isn't much help on youtube.

[@TonyStJohn]

Hey thanks for the request, I just posted this video for you: kzbin.info/www/bejne/e4amq4F4bK16hdk