23

June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

Embed Size (px)

Citation preview

Page 1: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s
Page 2: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

June 10, 2013

AGENDA:1 – Bell Ringer2 – Announcements 3 – CN: Calculating

pH and pOH4 – “We Do”

Homework Examples

5 – “You Do” Homework Work Time

Today’s Goal:Students will be able to calculate pH and pOH of solutions.Homework1. Calculating pH & pOH

HW2. Week 38 Work (and ALL

WORK) is due by Friday!

3. Make up Week 38 Quiz by Thursday (so you can have quizzes back Friday as Study Guides)

4. Final Exams = next Mon/Tue

Page 3: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

Monday, June 10

Objective: Students will be able to calculate pH and pOH of solutions.

Bell Ringer:Write the equation for the ionization of water.(In other words: What two ions does water break up into?)

(Fill in the balanced chemical equation below.)

H2O _____ + _____ (acid) (base)

5 minutes!

Page 4: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

4 MINUTES REMAINING…

Page 5: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

Monday, June 10

Objective: Students will be able to calculate pH and pOH of solutions.

Bell Ringer:Write the equation for the ionization of water.(In other words: What two ions does water break up into?)

(Fill in the balanced chemical equation below.)

H2O _____ + _____ (acid) (base)

4 minutes!

Page 6: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

3 MINUTES REMAINING…

Page 7: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

Monday, June 10

Objective: Students will be able to calculate pH and pOH of solutions.

Bell Ringer:Write the equation for the ionization of water.(In other words: What two ions does water break up into?)

(Fill in the balanced chemical equation below.)

H2O _____ + _____ (acid) (base)

3 minutes!

Page 8: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

2 MINUTES REMAINING…

Page 9: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

Monday, June 10

Objective: Students will be able to calculate pH and pOH of solutions.

Bell Ringer:Write the equation for the ionization of water.(In other words: What two ions does water break up into?)

(Fill in the balanced chemical equation below.)

H2O _____ + _____ (acid) (base)

2 minutes!

Page 10: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

1minute Remaining…

Page 11: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

Monday, June 10

Objective: Students will be able to calculate pH and pOH of solutions.

Bell Ringer:Write the equation for the ionization of water.(In other words: What two ions does water break up into?)

(Fill in the balanced chemical equation below.)

H2O _____ + _____ (acid) (base)

1 minute!!!

Page 12: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

30 Seconds Remaining…

Page 13: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

Monday, June 10

Objective: Students will be able to calculate pH and pOH of solutions.

Bell Ringer:Write the equation for the ionization of water.(In other words: What two ions does water break up into?)

(Fill in the balanced chemical equation below.)

H2O _____ + _____ (acid) (base)

30 seconds!!!

Page 14: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

BELL-RINGER TIME IS

UP!

Page 15: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

June 10, 2013

AGENDA:1 – Bell Ringer2 – Announcements 3 – CN: Calculating

pH and pOH4 – “We Do”

Homework Examples

5 – “You Do” Homework Work Time

Today’s Goal:Students will be able to calculate pH and pOH of solutions.Homework1. Calculating pH & pOH

HW2. Week 38 Work (and ALL

WORK) is due by Friday!

3. Make up Week 38 Quiz by Thursday (so you can have quizzes back Friday as Study Guides)

4. Final Exams = next Mon/Tue

Page 16: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

Week 39 -- 2 More Weeks!

Weekly Agenda

Monday 6/10 – CN: Calculating pH and pOH

Tuesday 6/11 – CN: pH Indicators

Wednesday 6/12 – Demos or Lab

Thursday 6/13 – REVIEW for EXAM

Friday 6/14 – REVIEW for EXAM

Page 17: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

Monday, June 10

Objective: Students will be able to calculate pH and pOH of solutions.

Bell Ringer:Write the equation for the ionization of water.(In other words: What two ions does water break up into?)

(Fill in the balanced chemical equation below.)

H2O _____ + _____ (acid) (base)

REVIEW

Page 18: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

CHAMPS for June 10, 2013

C – Conversation – Notes = No TalkingH – Help – RAISE HAND for questionsA – Activity – Cornell Notes:

Calculating pH and pOHM – Materials and Movement –

Pen/Pencil, Chem Notebook, Calculator

P – Participation – Complete your notes to be able to answer Practice Problems.

S – Success – Complete Practice Problems to prepare for next week’s exam!

Page 19: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

Date: 6/10/13Topic: Calculating pH and pOH

pH = Potential Hydrogen

Measures amount of H+ ions in a solution to determine how acidic or basic a solution is

Can’t directly measure pH of basic solutions

What is pH?

Page 20: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

Date: 6/10/13Topic: Calculating pH and pOH

When calculating pH, we use the log function

Log is a function that turns really big or really small numbers into integers (numbers) between 1-10

Ex: Scales the size of the galaxy into size of Harlan

What is a log function?

Page 21: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

Date: 6/10/13Topic: Calculating pH and pOH

pH = -log [H+]

EXAMPLE:What is the pH of 0.045M

HBr?

[HBr] = [H+] = [0.045M]pH = -log[0.045]

pH = 1.35

How do you calculate pH for acids?

Page 22: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

Date: 6/10/13Topic: Calculating pH and pOH

1. Calculate pOH:pOH = -log[OH-]

2. Then calculate pH:pH + pOH = 14

So: pH = 14 - pOH

How do you calculate pH for bases?

Page 23: June 10, 2013 AGENDA: 1 – Bell Ringer 2 – Announcements 3 – CN: Calculating pH and pOH 4 – “We Do” Homework Examples 5 – “You Do” Homework Work Time Today’s

Date: 6/10/13Topic: Calculating pH and pOH

EXAMPLE:What is the pH of 1.2x10-3

M NaOH?

[NaOH] = [OH-] = 1.2x10-3

MpOH = -log[1.2x10-3]

pOH = 2.92pH = 14 - 2.92

pH = 11.1

How do you calculate pH for bases?