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Title: Concentration and Ksp calculation Post by: Annonn on Apr 3, 2022 (https://biology-forums.com/gallery/44/1122469_03_04_22_3_59_54.jpeg) (https://biology-forums.com/index.php?action=gallery;sa=view&id=44875)
I can do the mean, SD, and RSD alone. I'm just confused on where to start (step-wise) on calculating the concentrations of the OH-, Ca2+, and Ksp of Ca(OH)2 (calcium hydroxide). These are the instructions from my assignment: 1. Calculate the concentration of the OH- ion from your data. 2. Calculate the concentration of the Ca2+ ion from your data. (You can calculate the concentration of your Ca2+ from your [OH-].) 3. Calculate the Ksp for calcium hydroxide. (Just another equilibrium constant from the chemical equation. Remember that a solid will not end up in the constant equation.) Title: Re: Concentration and Ksp calculation Post by: bio_man on Apr 3, 2022 I found a lab report for you again. Please review it to see if it helps.
Report back! Title: Re: Concentration and Ksp calculation Post by: Annonn on Apr 4, 2022 Thank you once again!!
So, I am currently trying to follow the steps that the individual took to calculate for the OH- but I am a bit stuck on where they got .015 L (I highlighted it): (https://biology-forums.com/gallery/44/1122469_04_04_22_8_04_49.jpeg) (https://biology-forums.com/index.php?action=gallery;sa=view&id=44879) I'm trying to reference their steps in order to solve my own data, so hopefully you see where I am confused :sweat_smile: The rest makes sense to me though! Title: Re: Concentration and Ksp calculation Post by: bio_man on Apr 4, 2022 See the second sentence of the procedure. The person says "gather 15 mL of calcium hydroxide"
Title: Re: Concentration and Ksp calculation Post by: Annonn on Apr 4, 2022 Ah, I see, thank you! That makes it so much clearer! :)
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