Your SlideShare is downloading. ×
Lecture 19.3- Weak vs.Strong
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Saving this for later?

Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime - even offline.

Text the download link to your phone

Standard text messaging rates apply

Lecture 19.3- Weak vs.Strong

619
views

Published on

Section 19.3 Lecture for Prep Chemistry

Section 19.3 Lecture for Prep Chemistry

Published in: Education, Business

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
619
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
13
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. BELLWORK- pH calcs
    • Determine the pH of the following solutions.
    • [H + ] = 5.2x10 -9 M
    • [OH - ] = 4.9x10 -4 M
    • pOH = 5.7
    • 0.02M HNO 3
    • 0.10M NaOH
  • 2. Strong acids and bases completely dissociate
  • 3.
    • AT EQUILIBRIUM
    • HCl + H 2 O  Cl - + H 3 O +
    • little lots lots
    Strong acids and bases completely dissociate
  • 4. Weak acids and bases only partly dissociate.
  • 5.
    • When in water most of the weak acid will keep its proton attached.
    Weak acids and bases only partly dissociate.
  • 6.
    • When in water most of the weak acid will keep its proton attached.
    • Acetic acid(vinegar) is a weak acid.
    Weak acids and bases only partly dissociate.
  • 7.
    • When in water most of the weak acid will keep it proton attached.
    • Acetic acid(vinegar) is a weak acid.
    • AT EQUILIBRIUM
    • CH 3 COOH + H 2 O  CH 3 COO - + H 3 O +
    • lots little little
    Weak acids and bases only partly dissociate.
  • 8.
    • Which acid will produce more H+,
    • 1M HCl or 1M acetic acid?
  • 9.
    • Which acid will produce more H+,
    • 1M HCl or 1M acetic acid?
    • HCl is strong!
    • HC 2 H 3 COO is weak
  • 10. Memorize this
    • Recognize the name, formula, and relative strength (weak or strong) of the following:
    • STRONG ACIDS WEAK ACIDS
    • HCl hydrochloric acid CH 3 COOH
    • H 2 SO 4 sulfuric acid aka HC 2 H 3 O 2 or
    • HNO 3 nitric acid acetic acid (vinegar)
    • STRONG BASES WEAK BASES
    • NaOH sodium hydroxide NH 3 ammonia
    • KOH potassium hydroxide
  • 11.
    • A strong acid has a weak conjugate base.
    • A weak acid has a strong conjugate base.
    • A strong base has a weak conjugate acid.
    • A weak base has a strong conjugate acid.
  • 12. Predict the products and label the conjugate acid-base pairs as weak or strong.
    • NH 3 + HCl  _______ + _______
    • CH 3 COOH + NH 3  _______ + _______