4/15/2013 (periods 1,3, & 5) 4/16/2013 (periods 2 & 6) Standards: 5 (Acids and Bases) Objectives: ● Complete CST 83-90 ● Students will be able to simplify.

Slides:

Advertisements

Similar presentations

PH (potential of Hydrogen). According to the Bronsted-Lowry theory, both acids and bases are related to the concentration of hydrogen ions. Acids will.

Advertisements

PH.

Ways to measure Acidity/Basicity What is pH? What is pOH?

Ch.15: Acid-Base and pH Part 1.

Acids and Bases. Ionization of Water H 2 O + H 2 O H 3 O + + OH - K w = [H 3 O + ][OH - ] = 1.0 

pH Water Water is in equilibrium with its ions H 2 O(l)  H + (aq) + OH - (aq) K w = [H + ][OH - ] K w = 1.0 x at 25°C In neutral solutions [H.

Unit: Acids, Bases, and Solutions

4/22/2013 Standards: 5 (Acid Base) and Biology (NCLB practice) Objectives: ● Students will perform well for the State NCLB Bio Test (answers will be on-line.

213 PHC. Acid-Base Equilibria (1) By the end of this lecture, you should be able to:  Define the pH of a solution.  Calculate the pH of strong acids.

Chapter 10 Acids and Bases

The Ion Product Constant for Water (Kw)

Strong Acid-Base Calculations

Calculating pH and pOH. pH pH = - log [H + ] [H + ] = the hydrogen ion concentration pH: “potential of hydrogen” - A way of expressing the hydrogen ion.

1 Chapter 8 Acids and Bases. 2 What is an Acid? In water, an acid increases the hydronium (H 3 O + ) concentration of an aqueous solution. Strong acids.

4/2/2012 Standards: 6 (Solutions) Objectives: ● Mr. Wigger Absent - problems to practice material from Ch 15.1 & 15.2 D O NOW: 1. Ch 15 Assess, p

A C I D - B A S E T I T R A T I O N A N D p H

Here we’ll go over an example where a strong acid is mixed with a strong base, and we calculate the pH of the final mixture. Strong Acid–Strong Base Mixture.

11/7/2011 Standards: 1 (Structure of the Atom) Objectives: 1. Periodic Trends - post Lab - be able to understand what questions are asking. 2. Start Review.

Chapter 19 More about ACID-BASES. Self-Ionization of Water Two water molecules produce a hydronium ion & a hydroxide ion by the transfer of a proton.

Logarithms. The logarithm of a number is the number of times 10 must be multiplied by itself to equal that number.

Arrhenius acid - any HA, H 2 A, H 3 A, or RCOOH substance with an H + to donate Examples include HCl, H 2 SO 4, H 3 PO 4, and CH 3 COOH.

May 31, 2012 AGENDA: 1 – Bell Ringer & Part. Log 2 – Review HW 3 – Demo 4 – pH Indicator Activity Today’s Goal: Students will be able to analyze pH indicators.

5/21/2012 Standards: MISC Objectives: ● Students will answer review questions and perform better on CST for Chem DO NOW: 1. Get a Zumdahl textbook for.

1/30/2012 Standards: 3 My Website - Objectives: 1. be able to recognize 6.02 x = mole = Avogadro's Number 2. be able to.

8.1 Acids and Bases Characteristics of Acids Acids (ie HCl, H 2 SO 4, HCH 3 COO):  are electrolytes  react with many metals to form hydrogen gas and.

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.

PH – A Measure of Acidity and Basicity Logarithm: In mathematics, the logarithm of a number is the exponent to which another fixed value, the base, must.

Yesterday’s Homework. The concentration of either the H + ion or the OH - ion is given for three aqueous solutions at 298 o K. For each solution, calculate.

Ch. 18: Acids & Bases Sec. 18.3: What is pH?. Objectives n Explain the meaning of pH and pOH. n Relate pH and pOH to the ion product constant for water.

Acid Base Calculations Calculations involving pH Titration calculations.

1/21/2013 NO SCHOOL - MLK DAY. 1/22/2013 Standards: 3 (Stoichiometry) Objectives: ● be able to: mol mass (compounds) DO NOW: 1. Convert mol KMnO.

Bell Ringer 1. How many valence electrons does N have? 2. Which of the 3 “classes” on the periodic table displays properties of both metals and nonmetals?

5/20/2013 Standards: 10 (Organic Chemistry) Objectives: ● Students will COMPLETE DATA GATHERING for Acid/Base Lab - ● Students will answer all questions.

Ch. 15 Titration And pH. Ionization of Water _____________________: two water molecules produce a hydronium ion and a hydroxide ion by transfer of a proton.

Review 1: Written the conjugate base and acid for the following acids and bases.

Pg  Amphoteric substance: can act as an acid or as a base ◦ Water is the most common amphoteric substance  Self-ionization of water: H 2.

QUIZ ON CH. 14 AND 15. 1) What does pH measure? What are the terms for a liquid with a pH of 3, a pH of 7, and a pH 10? pH measures [H+] concentration.

Yesterday’s Homework Page 611 # 19 Page 612 # 20.

Ch. 15 & 16 - Acids & Bases II. pH (p ) C. Johannesson.

Review for Quiz # 1 (30 points) Formulas you need to memorize –Density and % error Need to be able to determine moles, grams, or molecules using dimension.

Chapter 16 Acids and Bases. Characteristics Acids: – Bases: – Change the color of dyes.

NOTES: 19.2 – Hydrogen Ions & Acidity (pH and pOH)

C. Johannesson Ch. 15 & 16 - Acids & Bases II. pH (p )

Acids & Bases pH. Ionization of Water H 2 O + H 2 O H 3 O + + OH - K w = [H 3 O + ][OH - ] = 1.0  Kw=ionization constant for H2O.

 pH: The negative of the common logarithm of the hydronium ion concentration [H 3 O + ] ◦ pH stands for the French words pouvoir hydrogene, meaning “hydrogen.

Question 1: Name two properties of an acid- Question 2:Name two properties of a base? Academic Chemistry March 20,2012 sour, corrosive, reacts with metals.

K w, pH, and pOH. IONIZATION OF WATER Water is capable of reacting with itself in an ionization reaction H 2 O (l) + H 2 O (l) ⇌ H 3 O + (aq) + OH - (aq)

Acids & Bases Calculating pH and Naming. Finding the pH of Solutions Self- ionization of water – the simple dissociation of water H 2 O H + + OH - Concentration.

Acids & Bases Lesson 6 Strong Acid-Base Calculations.

Logarithms. The logarithm of a number is the number of times 10 must be multiplied by itself to equal that number.

Monday May 18 Objective: Calculate the pH of any solution. Checkpoint:

Acids and Bases Bundle 4: Water.

Ch. 19 Acids & Bases II. pH.

Hydronium Ions and Hydroxide Ions

Hydronium Ions and Hydroxide Ions

Acids and Bases Bundle 4: Water.

Acids and Bases Bundle 4: Water.

Can you calculate for acids and bases?

Lesson 3 LT: I can model a neutralization reaction and use titration to determine the concentration of an acid or a base.

Calculating Concentration

Acids and Bases Bundle 4: Water.

Chapter 15 Preview Lesson Starter Objectives

Acids & Bases II. pH.

pH Scale Definition of Acids and Bases

Calculating Concentration

Ch. 15 & 16 - Acids & Bases II. pH (p ) C. Johannesson.

Acids Lesson 8 Ionization of Water pH Calculations.

Calculating pH (and pOH)

Ch. 14 & 15 - Acids & Bases II. pH.

Presentation transcript:

4/15/2013 (periods 1,3, & 5) 4/16/2013 (periods 2 & 6) Standards: 5 (Acids and Bases) Objectives: ● Complete CST ● Students will be able to simplify ugly looking calculations DO NOW: 1. After turning in HW, Get responders and sign-in 2. Review how to calculate a log using my simple estimating log chart 3. CST Problems with responders (practice) HOMEWORK: NONE =========================================================== TURNED IN: ● Journal 4/12 (what you learned about how to calculate the log of a number with a power of 10) 1. Ch 19.3 Ch 19.2 p (a,b,c); 20 (a,b,c) (5 pts) Std 4 2. CST Problems (5 pts) Std MISC (KEEP FOR NOTEBOOK)

For 4/16, see whiteboard for 4/15

4/17/2013 Standards: 5 (Acids and Bases) Objectives: ● Students will be able to calculate pH of solutions of STRONG acids or bases give the concentration of the STRONG acids or bases ● Students will be able to "file dump" for CST ● Students will be able to do neutralization problems DO NOW: 1. Copy the file dump page HOMEWORK: 1. Ch 19.3 p (a,b,c,d); p ; p ,31,32 (5 pts) Std 5 =========================================================== NO STAMPING: ● Journal 4/15 OR 4/16 (what you learned about simplifying calculations on CST) (KEEP FOR NOTEBOOK) # left of 10 x # left of 10 x log of

File dump for CST LeChat stress LeChat wants LeChat does shift Conversions g mol atoms/molecules chart Avo Diatomic elements NOH on 17 ↑↓ Trends electronegativity ionization energy atom size ion size mass metal non-met reactivity vertica l & horian tal arrows loose

Review of calculating pH & pOH

Multiply 2 x 2 = 4

1 x x x x x x x x x = 0.1 = 0.01 = = = = = = = Exponent Increases# left of 10 x increases 1 x = x = x = x = x = x = x = x = x = x = = 1 x x = x = x = x = x = x = x = x = x = x = = 1 x x = x =

= 1.0 x = 1.0 x x > 10 x # left of 10 x # left of 10 x log of PATTERN for # left of 10 x and the the log of those numbers 1 x > 10 x # left of 10 x # left of 10 x log of

1 x > 10 x = 1.0 x x > 10 x = 1.0 x CONTINUED # left of 10 x # left of 10 x log of # left of 10 x # left of 10 x log of

What is the take away of this exercise? 3 x = = 5.52 = -log of the number -log of 3 =.48 = ph or pOH ( = 5.52)

STRONG ACIDS AND BASES IONIZE 100%IONIZE 100% IONIZE 100% strong acids (memorized) strong bases (Gp 1 or Gp 2 with OH 1- ) HCl -----> H 1+ + OH 1- ionize 100% HCl HNO 3 H ClO 4 H2 SO 4 H3 PO 4 HCl gas (one piece) ion

M 1 V 1 a = M 2 V 2 b

4/18/2013 Standards: Biology - NCLB practice Objectives: ● Students will perform well for the State NCLB Bio Test DO NOW: 1. Read the NCLB background and answer as many of the questions as you can. Practice Quiz due end of period, you keep background notes. HOMEWORK: 1. =========================================================== TURN IN: ● Journal 4/17 (Calculating pH & pOH) (KEEP FOR NOTEBOOK)