https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet Solved by Nicole Azqueta,Rene Gonzalez & Juan Barroso en-us 2021-04-20 23:03:21 UTC 2026-01-25 18:04:54 UTC hello@padlet.com https://padlet.net/icons/png/1f420.png nicoleazqueta001 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1440258651  Failing is not an option here.. Any fin is possible, don't trout yourself!]]> 2021-04-20 23:08:05 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1440258651 nicoleazqueta001 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1440282160 The Chemistry Wiz titrates  160.0 mL of a 0.6323 M ((CH3)3N) solution with 0.4990 M HNO3 solution at 25 degrees Celsius. 

Calculate the pH at equivalence. The pKb of ((CH3)3N) is 4.19.
Don't forget to round to 2 sig figs.




]]> 2021-04-20 23:22:03 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1440282160 nicoleazqueta001 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1440322760 2021-04-20 23:45:24 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1440322760 nicoleazqueta001 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1440327472  ((CH3)3N):
- Volume: 160.0 mL
- Concentration: 0.6323 M
- pKb=4.19
 HNO3:
- Concentration: 0.4990M

]]> 2021-04-20 23:47:54 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1440327472 nicoleazqueta001 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1440401874 This question is asking us for the pH at the equivalence point. This is when the moles of the weak base will equal the moles of the strong acid.]]> 2021-04-21 00:21:32 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1440401874 nicoleazqueta001 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1440604959 To better understand the equation we create a chemical equation showing Trimeththylamine and Nitric Acid combining to form the equation below. Since it’s also a 1:1 ratio then the # of moles of weak base (CH3)3N will be the same number of moles of the strong acid HNO3.]]> 2021-04-21 01:34:26 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1440604959 nicoleazqueta001 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1440717399 Remember to convert what you get! If this step isn't done...well REWIND]]> 2021-04-21 02:15:39 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1440717399 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1441253349 Now that we have the # of moles of HNO3 given which is 0.4990 M which helps us solve for the volume of strong acid that we have to add (aka the amount of solution from the burette to get to the equivalence pt.)]]> 2021-04-21 06:23:53 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1441253349 nicoleazqueta001 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1444928287 Before we get into the ICEY FUN! we need to find out the initial concentration by dividing mols/total volume! (NOTE: DON'T FORGET TO ADD 0.160L+0.027L as the total volume]]> 2021-04-21 23:57:04 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1444928287 nicoleazqueta001 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1445067008 Now that we have our initial concentration let's also create an equation using the ICE table in which what concentration will be present!  ]]> 2021-04-22 00:51:40 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1445067008 nicoleazqueta001 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1445176269 Hold on tight Squirt!  This is the part we use raise pKb (4.19) to the 10^-4.19 and we get 6.46*10^-5 (that's Kb)]]> 2021-04-22 01:32:34 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1445176269 nicoleazqueta001 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1445257184 Now we use Ka*Kb=Kw and switch it around to Ka=Kw/Kb to then plug it into the equation from the ICE table from Bruce.]]> 2021-04-22 02:01:37 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1445257184 nicoleazqueta001 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1445369669 WOOOO WE FOUND NEMO I MEAN THE pH!!

We're using the equation pH=-log[H^+] and plugging in 6.54*10^-6]]> 2021-04-22 02:45:30 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1445369669 nicoleazqueta001 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1445461465 Thank you Professor Gillings for all that you have taught us! Thank you for being caring,understanding and most importantly the best professor I've ever had since 1025! NOGGIN']]> 2021-04-22 03:24:19 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1445461465 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1445733829 Weak base Strong Acid ]]> 2021-04-22 05:39:38 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1445733829 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1445748668 2021-04-22 05:45:51 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1445748668 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1448162455 2021-04-22 16:28:31 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1448162455 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1449857819 2021-04-23 00:31:36 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1449857819 https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1449864487 2021-04-23 00:33:58 UTC https://padlet.com/nicoleazqueta001/dz3lkx5rvtdjqtet/wish/1449864487