Overcoming Titration by https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4 By Leslie Gonzalez, Giulia Neves, & Diana Reyes en-us 2023-12-07 19:33:21 UTC 2023-12-08 03:46:50 UTC hello@padlet.com HAVING PROBLEMS WITH TITRATION?! lesliegonzalez020_ https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2817903943 It's okay, you got this! We're here to help!

]]> 2023-12-07 19:51:30 UTC https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2817903943 First! Carefully read the problem! lesliegonzalez020_ https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2817907984 A chemist titrates 142. mL of a 0.2400 M of HCNO with 0.2300 M solution of NaOh. The pKa of cyanic acid is 3.46.

Calculate pH after:

  1. Initial pH

  2. After 125.25 mL is added

  3. After 148.17 mL is added

  4. After 176.0 mL is added

]]> 2023-12-07 19:55:45 UTC https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2817907984 Let's get started with the easy part! lesliegonzalez020_ https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2817913958 Determining the volume of NaOH is one of the most important parts as it is required to reach equivalence provided insight on where you are in the problem.

]]> 2023-12-07 20:02:29 UTC https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2817913958 We must set up an ICE Table to find the initial pH lesliegonzalez020_ https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2817917058 The initial pH= 2.04

]]> 2023-12-07 20:06:15 UTC https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2817917058 After 12.25 mL of 0.23 M NaOH is added lesliegonzalez020_ https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2817920886 Since 125.25 mL NaOH is before equivalence, this means we are given a buffer problem. Now the moles must be calculated, use the BCA Table and the Henderson-Hasselbalch equation with the pKa given.

]]> 2023-12-07 20:10:47 UTC https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2817920886 After 148.17 mL of 0.23 m NaOH is added lesliegonzalez020_ https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2817944102 Now, because we are at equivalence , we are dealing with a SALT PROBLEM! We must set an ICE table to find the pH. To find pKb, subtract pKa from 14. Then, take 10^-10.54 and that will be your Kb.

]]> 2023-12-07 20:41:09 UTC https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2817944102 After 176. mL of 0.23 M NaOH is added lesliegonzalez020_ https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2818286667 We're at the end!

]]> 2023-12-08 03:39:09 UTC https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2818286667 YOU DID IT! YOU OVERCAME TITRATION! lesliegonzalez020_ https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2818288661 I'm so glad we were able to help you. See you next time!

]]> 2023-12-08 03:41:37 UTC https://padlet.com/lesliegonzalez020_/qf1vcjlkw97og4q4/wish/2818288661