Acidic/Basic Reactions: 11.23.15
Objectives:
• I can distinguish between an acid and base in a
chemical reaction.
Homework:
• Acid/Base Properties and Definitions Applications
Acidic vs. Basic Properties
Acidic/Basic Definitions-Period
Acidic/Basic Definitions
Arrhenius
Bronstead-Lowry
Lewis
Acidic and Basic
Definitions
Example
Strong vs. Weak Acid/Base
• What distinguishes a strong acid/base from a
weak acid/base?
Acidic vs. Basic Properties-Period
Acidic/Basic Reactions: 11.24.15
Objectives:
• I can distinguish between an acid and base in a
chemical reaction.
Homework:
• I can identify acids and bases in a reaction.
• I can distinguish between strong and weak
acids/bases.
Acidic/Basic Definitions
Acidic/Basic Definitions
Arrhenius
Bronstead-Lowry
Lewis
Acidic and Basic
Definitions
Example
Acidic/Basic Reactions: 11.30.15
Objectives:
• I can distinguish between an acid and base in a
chemical reaction.
• I can distinguish between a strong and weak
acids/bases.
Acid/Base Review: Bell Ringer
1. Identify the acid and base for each reaction
below.
a. H2(SO4)(aq) + H2O (l) ----> H3O+ (aq) + HSO4- (aq)
b. BF3 (aq) + F-(aq) -----> BF4- (aq)
c. HNO3 (aq) + Al(OH)3(aq) -----> H2O (l) + Al(NO3)3 (aq)
2. Establish the net ionization reaction for 1c.
Acid/Base Review: Bell Ringer
1. Identify the acid and base for each reaction
below. Determine which definition best classifies
each reactant as an acid/base.
a. H2(SO4)(aq) + H2O (l) ----> H3O+ (aq) + HSO4- (aq)
b. BF3 (aq) + F-(aq) -----> BF4- (aq)
c. HNO3 (aq) + Al(OH)3(aq) -----> H2O (l) + Al(NO3)3 (aq)
2. Establish the net ionization reaction for 1c.
Chem II Block: 12/01/15
Due: Textbook Problems
Objectives:
• I can identify acids and bases and their conjugate
pairs in a reaction based on the acid/base
definitions.
• I can distinguish between strong and weak
acids/bases.
Strength of Acids and Bases
• What determines the strength of an acid and a
base?
Acids vs. Bases
Strength of Acids
http://wwwchem.csustan.edu/chem3070/images/acetic.gif
Degree of Dissociation
• Depends upon:
EN( ions) difference
en.wikipedia.org
vs. EN(ions/H2O) difference
Strong Acids and Bases
Strong Acids
Strong Bases
HCl
LiOH
HBr
NaOH
HI
KOH
HClO4
RbOH
HClO3
CsOH
HNO3
Ca(OH)2
H2SO4
Sr(OH)2
Ba(OH)2
Can the periodic table be helpful in identifying strong acids and bases?
Acid/Base Strength
• HF, H2S, H(NO3)
1. Name each of the following acids above:
2. Rank the following acids from strongest to
weakest? Provide evidence on how you ranked
them.
Acid/Base Strength
• HF, H2S, H(NO3)
1. Name each of the following acids above:
2. Rank the following acids from strongest to
weakest? Provide evidence on how you ranked
them.
Chem II Block: 12/02/15
Due:
• Self-Ionization of water
Objectives:
• I can identify acids and bases and their conjugate
pairs in a reaction based on the acid/base
definitions.
• I can distinguish between strong and weak
acids/bases.
• I can calculate the molar concentration of H+
and OH- in aqueous solutions.
Degree of Dissociation
• Depends upon:
EN( ions) difference
en.wikipedia.org
vs. EN(ions/H2O) difference
Strong or Weak Acids/Bases
• Explain which reaction below consists of a
strong acid and which consists of a weak acid.
a. HBr + H2O -----> H3O+ + Brb. H2S + H2O -----> H3O+ + HS-
Strengths of Acids and Bases
Water: Self-Ionization
• According to the text you read last night, what have
scientists gained from studying the self-ionization of
water?
Chem II Block: 12/03/15
Due:
• Self-Ionization of water
Objectives:
• I can identify acids and bases and their conjugate
pairs in a reaction based on the acid/base
definitions.
• I can distinguish between strong and weak
acids/bases.
• I can calculate the molar concentration of H+
and OH- in aqueous solutions.
Water: Self-Ionization
• According to the text you read last night, what have
scientists gained from studying the self-ionization of
water?
Water: Self-Ionization
• H2O + H2O  H3O+ + OH• This is a reversible reaction.
• Water is considered a weak electrolyte. Why?
Chem II Block: 12/04/15
Objectives:
• I can identify acids and bases and their conjugate
pairs in a reaction based on the acid/base
definitions.
• I can distinguish between strong and weak
acids/bases.
• I can calculate the molar concentration of H+
and OH- in aqueous solutions.
Kw: Water Ionization Constant
Kw: Water Ionization Constant
• Temperature dependent, direct relationship.
• The product of [H3O+] and [OH-] is ALWAYS….
Kw= [H3O+] [OH-] = 1.0x10-14 M2, when temp. is constant.
pH Scale vs. [H3O+] concentration
Explain the relationship between the [H3O+] concentration and pH scale at neutral,
acidic, and basic conditions.
Aqueous Solutions: pH vs. pOH
Chem II Block: 12/07/15
Objectives:
• I can identify acids and bases and their conjugate
pairs in a reaction based on the acid/base
definitions.
• I can distinguish between strong and weak
acids/bases.
• I can calculate the molar concentration of H+
and OH- in aqueous solutions.
• I can calculate the pH and pOH values of
solutions.
Solutions:Calculating [H3O+] and [OH-] Ions
Chem II Block: 12/08/15
Objectives:
• I can identify acids and bases and their conjugate
pairs in a reaction based on the acid/base
definitions.
• I can distinguish between strong and weak
acids/bases.
• I can calculate the molar concentration of H+
and OH- in aqueous solutions.
• I can calculate the pH and pOH values of
solutions.
Chem II Block: 12/07/15
Objectives:
• I can identify acids and bases and their conjugate
pairs in a reaction based on the acid/base
definitions.
• I can distinguish between strong and weak
acids/bases.
• I can calculate the molar concentration of H+
and OH- in aqueous solutions.
• I can calculate the pH and pOH values of
solutions.
Conjugate Acids and Bases
• What are conjugate acids and bases?
• Which acid/base definition best describes
acid/base conjugates?
Strong or Weak Acids/Bases
• Explain which reaction below consists of a
strong acid and which consists of a weak acid.
a. HBr + H2O -----> H3O+ + HSb. H2S + H2O -----> H3O+ HS-
Chem II: 1/8/14
Due:
• Acid/Base ppt. slides
• (Late): Analysis of First Semester Exams
Objectives:
• I can name acids and bases.
• I can identify acids and bases in a reaction.
• I can distinguish between strong and weak acids/bases.
Homework:
• Textbook Problems
Chem II: 1/9/15
Due:
• Acid/Base ppt. slides
• (Late): Analysis of First Semester Exams
Objectives:
• I can name acids and bases.
• I can identify acids and bases in a reaction.
• I can distinguish between strong and weak acids/bases.
Homework:
• Textbook Problems
Chem II: 1/9/15
Due:
• Acid/Base ppt. slides
• (Late): Analysis of First Semester Exams
Objectives:
• I can name acids and bases.
• I can identify acids and bases in a reaction.
• I can distinguish between strong and weak acids/bases.
Homework:
• Textbook Problems
Chem II Block: 1/12/15
Due: Textbook Problems
Objectives:
• I can identify acids and bases and their conjugate
pairs in a reaction based on the acid/base
definitions.
• I can distinguish between strong and weak
acids/bases.
• I can establish the net ionic equations of
neutralization reactions.
• I can apply stoichiometry with neutralization
reactions.
Bell Ringer: Conjugate Acids/Bases
• HF + H2O <---->
F-
+
H3O+
a. Identify the conjugate acid/base pairs in the
reaction above.
b. Explain which direction (forward or reverse)
is favored.
Chem II Block: 1/13/15
Due: Textbook Problems
Objectives:
• I can identify acids and bases and their conjugate
pairs in a reaction based on the acid/base
definitions.
• I can distinguish between strong and weak
acids/bases.
• I can establish the net ionic equations of
neutralization reactions.
• I can apply stoichiometry with neutralization
reactions.
Mole Conversion Map
http://mysite.cherokee.k12.ga.us
Stoichiometry Map
Mole Conversion Map
http://mysite.cherokee.k12.ga.us
Stoichiometry Applications
Water: Self-Ionization
• According to the text you read last night, what have
scientists gained from studying the self-ionization of
water?
Chem II Block: 1/20/15
Infinite Campus: Textbook problems (15pts.)
Objectives:
• I can identify acids and bases and their conjugate pairs
in a reaction based on the acid/base definitions.
• I can distinguish between strong and weak
acids/bases.
• I can establish the net ionic equations of neutralization
reactions.
• I can apply stoichiometry with neutralization
reactions.
• I can calculate the molar concentration of H+ and OHin aqueous solutions.
• I can understand and calculate the pH and pOH
values of aqueous solutions.
Chem II Block: 1/20/15
Infinite Campus: Textbook problems (15pts.)
Objectives:
• I can identify acids and bases and their conjugate pairs
in a reaction based on the acid/base definitions.
• I can distinguish between strong and weak
acids/bases.
• I can establish the net ionic equations of neutralization
reactions.
• I can apply stoichiometry with neutralization
reactions.
• I can calculate the molar concentration of H+ and OHin aqueous solutions.
• I can understand and calculate the pH and pOH
values of aqueous solutions.
Liming Streams Article
• Annotate article and write a summary about
it. *Appropriately incorporate data from the
quiz into your summary on “Liming Streams”.
• Due Thursday, Jan 22nd
Liming Streams Article
• Annotate article and write a summary about
it. Explain how acid/base chemistry is applied.
• Due Thursday, Jan 22nd
Chem II Block: 1/22/15
Due:
• Liming Streams article summary
Objectives:
• I can apply stoichiometry with neutralization
reactions.
• I can calculate the molar concentration of H+ and
OH- in aqueous solutions.
• I can understand and calculate the pH and pOH
values of aqueous solutions.
Chem II Block: 1/26/15
Due:
• Molar concentration practice problems, pg. 484
• Liming Streams article summary-LATE
Objectives:
• I can calculate the molar concentration of H+ and
OH- in aqueous solutions.
• I can understand and calculate the pH and pOH
values of aqueous solutions.
Molar Concentration of Ions
pH Scale vs. [H3O+] concentration
Explain the relationship between the [H3O+] concentration and pH scale at neutral,
acidic, and basic conditions.
Chem II Block: 1/27/15
Due:
• Concentration of ions in aqueous solutions.
• Liming Streams article summary-LATE
Objectives:
• I can calculate the molar concentration of H+ and
OH- in aqueous solutions.
• I can understand and calculate the pH and pOH
values of aqueous solutions.
Bell Ringer: pH values
a. What is the pH of a 2.6x10-3 M HBr solution?
b. What is the pH of a 4.2x10-3 Na(OH) solution?
Aqueous Solutions: pH vs. pOH
Aqueous Solutions: Calculations
Exit Slip: Aqueous Solution Calculations
a. For
Acid/Base Reactions
1. Distinguish between acidic and basic properties;
give applications of both (Venn diagram).
2. a. Identify and distinguish between the three
types of acid/base definitions.
b. Which definition above best explains how you
currently classify acids and bases? Explain your
answer.
c. Which definition above do you think classifies
acids and bases the best? Explain your answer.
Acid/Base Reactions
1. Distinguish between acidic and basic properties;
give applications of both (Venn diagram).
2. a. Identify and distinguish between the three
types of acid/base definitions.
b. Which definition above best explains how you
currently classify acids and bases? Explain your
answer.
c. Which definition above do you think classifies
acids and bases the best? Explain your answer.
Chem II-Period Midterm Review
• Naming Cmpds.
• Metric Conversions
• Sig. Figs
pH Scale vs. [H3O+] concentration
Explain the relationship between the [H3O+] concentration and pH scale at neutral,
acidic, and basic conditions.
Acidic vs. Basic Properties-Period
Acidic vs. Basic Properties
Acidic/Basic Definitions
Acidic/Basic Definitions
Arrhenius
Bronstead-Lowry
Lewis
Acidic and Basic
Definitions
Example
Acidic/Basic Definitions-Period
Acidic/Basic Definitions
Arrhenius
Bronstead-Lowry
Lewis
Acidic and Basic
Definitions
Example
Acidic/Basic Definitions
1. Determine which type of base is represented in each
reaction below (Arrhenius base, Bronstead-Lowry
base, and Lewis base).
a. NaOH (s) ---------> Na+ (aq) + OH- (aq)
b. HF (aq) + H2O (l) -----> F- (aq) + H3O+ (aq)
c. H+(aq) + NH3 (aq) ------> NH4+ (aq)
2. Identify which reactant below is the acid and the
base. Which definition best explains your
classification?
H2CO3 + H2O ------> HCO3- + H3O+
Chem II Block: 11.6.14
Objectives:
• I can identify acids and bases in a reaction based
on the acid/base definitions.
• I can distinguish between strong and weak
acids/bases.
• I can establish the net ionic equations of
neutralization reactions.
• I can identify the conjugate acid and conjugate
base in an acid/base reaction.
• I can apply stoichiometry with neutralization
reactions.
Strong or Weak Acids/Bases
• Explain which reaction below consists of a
strong acid and which consists of a weak acid.
a. HBr + H2O -----> H3O+ + HSb. H2S + H2O -----> H3O+ HS-
Acidic/Basic Definitions
Acidic/Basic Definitions
Arrhenius
Bronstead-Lowry
Lewis
Acidic and Basic
Definitions
Example
Acidic/Basic Definitions
1. Determine which type of base is represented in each
reaction below (arrhenius base, Bronstead-Lowry
base, and Lewis base).
a. NaOH (s) ---------> Na+ (aq) + OH- (aq)
b. HF (aq) + H2O (l) -----> F- (aq) + H3O+ (aq)
c. H+(aq) + NH3 (aq) ------> NH4+ (aq)
2. Identify which reactant below is the acid and the
base. Which definition best explains your
classification?
H2CO3 + H2O ------> HCO3- + H3O+
Neutralization Reactions
Objectives:
• Establish Net Ionic Equations
• Apply Stoichiometry
• Assigned textbook problems
Text Practice Problems
Stoichiometry Map
Mole Conversion Map
http://mysite.cherokee.k12.ga.us
Chem II Block: 11.10.14
Due:
Textbook Problems
Objectives:
• I can identify acids and bases in a reaction based on the
acid/base definitions.
• I can distinguish between strong and weak acids/bases.
• I can establish the net ionic equations of neutralization
reactions.
• I can apply stoichiometry with neutralization reactions.
• I can identify the conjugate acid and conjugate base in
acid/base reactions.
• I can calculate the molar concentration of H+ and OH- in
aqueous solutions.
• I can understand and calculate the pH and pOH values of
aqueous solutions.
Homework Qts.
Acid/Base Review: Bell Ringer
1. Identify the acid and base for each reaction
below. Determine which definition best classifies
each reactant as an acid/base.
a. H2(SO4)(aq) + H2O (l) ----> H3O+ (aq) + HSO4- (aq)
b. BF3 (aq) + F-(aq) -----> BF4- (aq)
c. HNO3 (aq) + Al(OH)3(aq) -----> H2O (l) + Al(NO3)3 (aq)
2. Establish the net ionization reaction for 1c.
Conjugate Acids and Bases
• What are conjugate acids and bases?
• Which acid/base definition best describes
acid/base conjugates?
Conjugate Acids/Bases
• HF + H2O
F-
• Strength of CA and CB:
+
H3O+
Chem II Block: 11.11.14
Due:
Textbook Problems due-place in tray.
Objectives:
• SRI Testing: password: LLeeper
• I can identify the conjugate acid and conjugate
base in acid/base reactions.
• I can calculate the molar concentration of H+ and
OH- in aqueous solutions.
• I can understand and calculate the pH and pOH
values of aqueous solutions.
Strong Acids and Bases
Strong Acids
Strong Bases
HCl
LiOH
HBr
NaOH
HI
KOH
HClO4
RbOH
HClO3
CsOH
HNO3
Ca(OH)2
H2SO4
Sr(OH)2
Ba(OH)2
Can the periodic table be helpful in identifying strong acids and bases?
Conjugate Acids and Bases
• Complete qts. 23 from textbook:
Also, identify if the CA and CB are considered
weak or strong.
Chem II Block: 11.12.14
Due: *those absent yesterday*:
Textbook Problems due-place in tray.
Objectives:
• I can identify the conjugate acid and conjugate
base in acid/base reactions.
• I can use the Kw constant to calculate the molar
concentrations of H3O+ and OH- ions.
• I can associate pH values with molar
concentration of H3O+ions; pOH values with molar
concentrations of OH-ions.
Strong Acids and Bases
Strong Acids
Strong Bases
HCl
LiOH
HBr
NaOH
HI
KOH
HClO4
RbOH
HClO3
CsOH
HNO3
Ca(OH)2
H2SO4
Sr(OH)2
Ba(OH)2
Identify ways in which the periodic table can help you remember strong acids and bases.
Acid/Base and Conjugate Pairs Review
• HC2H3O2 + H2O
H3O+ + C2H3O2-
a. Identify the acid and base and their
conjugate pairs.
b. Determine whether or not the acid and base
or their conjugate pair is stronger.
c. Knowing which substances are stronger,
predict which direction is favored in the
reaction.
Acid/Base and Conjugate Pairs Review
• HC2H3O2 + H2O
H3O+ + C2H3O2-
a. Identify the acid and base and their
conjugate pairs.
b. Determine whether or not the acid and base
or their conjugate pair is stronger.
c. Knowing which substances are stronger,
predict which direction is favored in the
reaction.
Acid/Base and Conjugate Pairs Review
• HC2H3O2 + H2O ------> H3O+ + C2H3O2a. Identify the acid and base and their
conjugate pairs.
b. Determine whether or not the acid and base
or their conjugate pair is stronger.
c. Knowing which substances are stronger,
predict which direction is favored in the
reaction.
Strong Acids and Bases
Strong Acids
Strong Bases
HCl
LiOH
HBr
NaOH
HI
KOH
HClO4
RbOH
HClO3
CsOH
HNO3
Ca(OH)2
H2SO4
Sr(OH)2
Ba(OH)2
Identify ways in which the periodic table can help you remember strong acids and bases.
Strengths of Acids and Bases
Water: Self-Ionization
• According to the text you read, what have
scientists gained from studying the selfionization of water?
Water: Self-Ionization
• H2O + H2O
H3O+ + OH-
• This is a reversible reaction.
• Water is considered a weak electrolyte.
• Draw the reversible arrows, indicating which
direction is more favorable.
Kw: Water Ionization Constant
• Always constant in water and dilute aqueous
solutions.
• Temperature dependent, direct relationship.
• The product of [H3O+] and [OH-].
Kw= [H3O+] [OH-] =
Chem II Block: 11.13.14
Due: *those absent yesterday*:
Textbook problems (14, 16, 26, 32, 33)
Infinite Campus:
• Hydrogen Peroxide Lab (15pts.)
• Acid/Base Textbook Problems (10pts.)
Objectives:
• I can identify the conjugate acid and conjugate base
in acid/base reactions.
• I can use the Kw constant to calculate the molar
concentrations of H3O+ and OH- ions.
• I can associate pH values with molar concentration of
H3O+ions; pOH values with molar concentrations of
OH-ions.
Kw: Water Ionization Constant
Liming Streams Article
Calculating [H3O+] and [OH-] Concentrations
A 1.0 x10-4 M solution of HNO3 has been
prepared for a laboratory experiment.
a. Calculate the [H3O+] of this solution.
b. Calculate the [OH-] of this solution.
Chem II Block: 11.14.14
Due: *those absent yesterday*:
Textbook problems (14, 16, 26, 32, 33)
Objectives:
• I can identify the conjugate acid and conjugate
base in acid/base reactions.
• I can use the Kw constant to calculate the molar
concentrations of H3O+ and OH- ions in solutions
containing strong acids and bases.
• I can associate pH values with molar
concentration of H3O+ions; pOH values with molar
concentrations of OH-ions.
Chem II Block: 1.23.15
Due: Practice Problems from packet
Objectives:
• I can use the Kw constant to calculate the molar
concentrations of H3O+ and OH- ions in solutions
containing strong acids and bases.
• I can associate pH values with molar
concentration of H3O+ions; pOH values with molar
concentrations of OH-ions.
Chem II Block: 11.14.14
Due: *those absent yesterday*:
Textbook problems (14, 16, 26, 32, 33)
Objectives:
• I can identify the conjugate acid and conjugate
base in acid/base reactions.
• I can use the Kw constant to calculate the molar
concentrations of H3O+ and OH- ions in solutions
containing strong acids and bases.
• I can associate pH values with molar
concentration of H3O+ions; pOH values with molar
concentrations of OH-ions.
pH Scale vs. [H3O+] concentration
Explain the relationship between the [H3O+] concentration and pH scale at neutral,
acidic, and basic conditions.
pH value vs. [H3O+] concentration
a. What is the pH of a 2.6x10-3 M H2SO4 solution?
b. What is the pH of a 4.2x10-3 Na(OH) solution?
Aqueous Solutions
Aqueous Solutions Calculations
2.2x10-3 M HI solution at 25oC.
a. Establish the ionization equation and identify
the acid, base, and conjugate pairs.
b. Which direction is favored in the ionization
equation?
c. Calculate the [H3O+] and the [OH-] in this
solution.
d. What is the pH of this solution?
e. What is the pOH of this solution?
f. Using evidence above, prove why this is an
acidic solution.
Aqueous Solutions: Calculations
2.4x10-3 M HNO3 solution at 25oC.
a. Establish the ionization equation and identify the
acid, base, and conjugate pairs.
b. Which direction is favored in the ionization equation?
c. Calculate the [H3O+] and the [OH-] in this solution.
d. What is the pH of this solution?
e. What is the pOH of this solution?
f. Using evidence above, prove why this is an acidic
solution.
Aqueous Solutions: Calculations
5.4x10-3 M HClO4 solution at 25oC.
a. Establish the ionization equation and identify the
acid, base, and conjugate pairs.
b. Which direction is favored in the ionization equation?
c. Calculate the [H3O+] and the [OH-] in this solution.
d. What is the pH of this solution?
e. What is the pOH of this solution?
f. Using evidence above, prove why this is an acidic
solution.
Aqueous Solutions: Calculations
7.3x10-2 M HNO3 solution at 25oC.
a. Establish the ionization equation and identify the
acid, base, and conjugate pairs.
b. Which direction is favored in the ionization equation?
c. Calculate the [H3O+] and the [OH-] in this solution.
d. What is the pH of this solution?
e. What is the pOH of this solution?
f. Using evidence above, prove why this is an acidic
solution.
Aqueous Solutions: Calculations
3.7x10-4 HCl solution at 25oC.
a. Establish the ionization equation and identify the
acid, base, and conjugate pairs.
b. Which direction is favored in the ionization equation?
c. Calculate the [H3O+] and the [OH-] in this solution.
d. What is the pH of this solution?
e. What is the pOH of this solution?
f. Using evidence above, prove why this is an acidic
solution.
Chem II Block: 11.17.14
Objectives:
• I can identify the conjugate acid and conjugate
base in acid/base reactions.
• I can use the Kw constant to calculate the molar
concentrations of H3O+ and OH- ions in solutions
containing strong acids and bases.
• I can associate pH values with molar
concentration of H3O+ions; pOH values with molar
concentrations of OH-ions.
• I can use acid-base reactions to calculate
concentration of unknown solutions.
Chem II Block: 11.18.14
Objectives:
• I can identify the conjugate acid and conjugate
base in acid/base reactions.
• I can use the Kw constant to calculate the molar
concentrations of H3O+ and OH- ions in solutions
containing strong acids and bases.
• I can associate pH values with molar
concentration of H3O+ions; pOH values with molar
concentrations of OH-ions.
• I can use acid-base reactions to calculate
concentration of unknown solutions.
Brain Teaser: pH Values
• 0.1 M HCl
• 0.1 M H2SO4
• 0.1 M HF
Weak Acids and Bases
• What are weak acids and bases?
Weak Acids and Bases
• How can we calculate the [H3O+] and [OH-]
concentration in solutions containing weak acids
and bases?
Chem II Block: 1.30.15
Infinite Campus:
• Aqueous Solution Concentration Quiz (8pts.)
Objectives:
• I can identify the conjugate acid and conjugate base in
acid/base reactions.
• I can use the Kw constant to calculate the molar
concentrations of H3O+ and OH- ions in solutions
containing strong acids and bases.
• I can associate pH values with molar concentration of
H3O+ions; pOH values with molar concentrations of OHions.
• I can use acid-base reactions to calculate concentration of
unknown solutions.
Weak Acids and Bases
• How can we calculate the [H3O+] and [OH-]
concentration in solutions containing weak acids
and bases?
http://www.sensorland.com/HowPage037.html
Weak Acids and Bases
• How can we calculate the [H3O+] and [OH-]
concentration in solutions containing weak acids
and bases?
http://www.sensorland.com/HowPage037.html
Acid-Base Indicators
http://acid-base-titration.blogspot.com/
Chem II Block: 2.02.15
Objectives:
• I can identify the conjugate acid and conjugate base in
acid/base reactions.
• I can use the Kw constant to calculate the molar
concentrations of H3O+ and OH- ions in solutions
containing strong acids and bases.
• I can associate pH values with molar concentration of
H3O+ions; pOH values with molar concentrations of OHions.
• I can use acid-base reactions to calculate concentration of
unknown solutions.
Titrations and Molarity
Equivalence Point:
End Point:
Chem II Block: 2.06.15
Objectives:
• I can identify the conjugate acid and conjugate base in
acid/base reactions.
• I can use the Kw constant to calculate the molar
concentrations of H3O+ and OH- ions in solutions
containing strong acids and bases.
• I can associate pH values with molar concentration of
H3O+ions; pOH values with molar concentrations of OHions.
• I can use acid-base reactions to calculate concentration of
unknown solutions.
Titration Lab Results
Lab Group
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
VA (final)
Trial 1
VA (final)
Trial 2
VA (final)
Trial 3
VA (final)
Average
% Yield
Coal Article Debate-Monday
• Must record at least three supporting facts to
support your view on this article. (Be ready to
defend your view)
• Must cite resources for supporting facts. You
must have at least two authentic/reputable
resources.
Acid/Base Review
• Test will be Tuesday
Acid/Base Review
Chem II Block: 2.09.15
Due:
• Neutralization Titration Labs (12pts.)
• Coal Article Debate: supporting evidence/sources
Objectives:
• I can identify the conjugate acid and conjugate base in
acid/base reactions.
• I can use the Kw constant to calculate the molar
concentrations of H3O+ and OH- ions in solutions containing
strong acids and bases.
• I can associate pH values with molar concentration of
H3O+ions; pOH values with molar concentrations of OH-ions.
• I can use acid-base reactions to calculate concentration of
unknown solutions.
Coal Article Debate
• Socratic Seminar over Coal Article Debate
• Students in desks will discuss for 10min. Then
rotate.
• Must participate for full credit.
Titrations and Molarity: Bell Ringer
1. The molarity of a NaOH solution can be determined by
titrating a known volume of the solution with a HCl solution of
known concentration. If 19.1 mL of 0.118M HCl is required to
neutralize 25.00 mL of a NaOH solution, what is the molarity of
the NaOH?
2. If 8.6 mL of 0.0994 M HNO3 is required to neutralize 25.00 mL
of a Sr(OH)2 solution, what is the molarity of the Sr(OH)2?
•