CH0002 - Lecture 7

Home > Preview

The flashcards below were created by user james14hunter on FreezingBlue Flashcards.


  1. What is the Bronsted concept of acids and bases?
    Image Upload
  2. Image Upload
    Image Upload
  3. How can water behave in terms of acids and bases?
    Image Upload
  4. How can you work out a pH?
    pH  =  - log10[H+]
  5. What are strong acids and bases?
    Image Upload
  6. What are weak Acids and bases?
    Image Upload
  7. Image Upload
    Image Upload
  8. How can you calculate the [OH-] if [H3O+] = 1x10-3
    Image Upload
  9. What is the pH of a 0.005M solution of NaOH
    Image Upload
  10. What are some strong Acids?
    • HCl
    • HI
    • HNO3
    • H2SO4
  11. What are some strong bases?
    • NaOH
    • KOH
    • Ca(OH)2
  12. What are some weak acids?
    • CH3COOH
    • H3PO4
  13. What are some weak bases?
    • NH3
    • (CH3)3N
  14. What do weak acids and bases have?
    They have ionisation constants
  15. What are ionisation constants?
    K

    Image Upload
  16. What are ionisation constants often converted into?
    Into pK

    pKa  = -log (Ka)
  17. Image Upload
    Image Upload


    Image Upload


    Image Upload


    Image Upload
  18. What are conjugate acids and bases?
    A conjugate acid donates a proton to form the conjugate base

    A conjugate base accepts a proton to form the conjugate acid.
  19. Explain a conjugate pair
    Image Upload
  20. What is the common ion effect?
    The common ion effect is the effect on pH when the salt of a conjugate base is added to a solution of it's parent or conjugate acid.

    For example 

    Image Upload
  21. Image Upload
    Image Upload


    Image Upload
  22. What is a buffer solution?
    A buffer solution is a combination of an acid and the salt of its conjugate base, that maintains the pH of a solution in the presence of small amounts of added acid or base

    A buffer solution is one which resists changes in pH when small quantities of an acid or an alkali are added to it.
  23. What are acidic buffers?
    Acidic buffers have a pH of less than 7 and are made from a weak acid and one of its salts.
  24. What are basic buffers?
    Basic buffers have a pH greater than 7 and they're made by mixing a weak base with one of its salts
  25. How do buffer solutions work?
    Read the chemistry guide pg 46-7

Card Set Information

Author:
james14hunter
ID:
272213
Filename:
CH0002 - Lecture 7
Updated:
2014-04-28 12:09:21
Tags:
CH0002
Folders:
CH0002
Description:
CH0002
Show Answers:

Home > Flashcards > Print Preview