A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Calculate the pH of a solution prepared by mixing 10.0 mL 1.0 M NaOAc and 35.0 mL 0.4M HOAc. Ka = 1.8E-5

  • This Question is Open
  1. abb0t
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    start by writing down the balanced equilibrium equation.

  2. abb0t
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    can you do that

  3. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    PH=4.47+, 397 =5.137 Where 4.47 is the -ve log Ka =pka And , 397 is log base/acid This is Handerson equation by which you can detrmine the ph of buffer solution

  4. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    PH=Pka + log [base]/[acid] It is used only for buffer solution. Your compounds are salt of conjugate base which is NaOCN And acid which is HOAC And this is buffer solution.

  5. Vincent-Lyon.Fr
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    The formula given above is ok, but the calculation is wrong. You should be able to manage this now.

  6. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I think it is true , but if you have noticed something wrong , I'll be glade to learn it from you

  7. Vincent-Lyon.Fr
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I mean the numerical values must be calculated again. pKa is not 4.47 and log [base]/[acid] is not +0.397

  8. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.