Mr. Markwalter. It’s a log jam… Quiz! 15 minute maximum. All desks clear. Silence until I have all quizzes back in.

Slides:

Advertisements

Similar presentations

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

Advertisements

Continuing into the world of acids and bases….  pH of a solution is the negative logarithm of the hydrogen ion concentration  pH = -log [H + ]  This.

PH, Acids and Bases.

PH and Buffers Pre-AP Biology 1.

Orders of Magnitude Order of Magnitude – the common logarithm of a positive quantity. Examples Mercury is about 5.79 x 10 meters from the Sun 10 Pluto.

Section 8D Logarithm Scales: Earthquakes, Sounds, and Acids

Chapter 3 Exponential, Logistic, and Logarithmic Functions

Copyright © 2015, 2011, 2008 Pearson Education, Inc. Chapter 8, Unit D, Slide 1 Exponential Astonishment 8.

Wake-up Write down each equation below. Identify the base (B), acid (A), conjugate acid (CA), and conjugate base (CB). 1.NH 3 + HCN  NH 4 + CN 1.HSO 4.

TOPIC: pH Do Now: Identify as acid, base, salt, or covalent Electrolyte or Not 1. NaCl 6. CaI2 2. C2H5OH 7. HF 3. H2SO4 8. Mg(OH)2 4. NaOH 9. NH3 5. C12H22O11.

Environmental Science PERIODIC TABLE Living Matter made up of: C = Carbon H = Hydrogen N = Nitrogen O = Oxygen P = Phosphorous S = Sulfur.

PH Scale Standard: 5d-students know how to use the pH scale to characterize acid and base solutions.

Section 8D Logarithmic Scales: Earthquakes, Sounds, & Acids

Properties of Logarithms

Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Slide 3- 1 Homework, page 317 Assuming x and y are positive, use properties.

Warm Up 1. How does the function f(x) = log (x-3)+4 differ from the parent function? 2. Compute a.log (4  10) b. log (4  10 2 ) c.log (4  10 3 ) d.log.

ACIDS AND BASES Description of reactivity. pH SCALE POWER OF HYDROGEN MEASURES IONS (H+ / OH-) IONS: Electrically charged particles ACIDS … H+ BASES …

Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Slide 3- 1 Homework, Pag3 308 Evaluate the logarithmic expression without.

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

6. 3 Logarithmic Functions Objectives: Write equivalent forms for exponential and logarithmic equations. Use the definitions of exponential and logarithmic.

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.

Quiz Convert to a common logarithm logarithm 2. Expand: 3. Condense:

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.

Acids and Bases The pH scale What do vinegar, lemons, and orange juice have in common?

Livers are pHun! Enzymes and pH. What the pHudge is pH? / The pH scale measures how strong an acid or a base is. / Any solution with a pH lower than 7.

Section 8D Logarithm Scales: Earthquakes, Sounds, and Acids

Assignment # Acidic, Basic, and Neutral Solutions Biology Mrs. McCarthy Wednesday, November 18, 2015.

Warm ups 1. Write the equation in exponential form.

Date: 3.5 Equation Solving and Modeling (3.5) One-to-One Properties For any exponential function f(x) = b x : If b u = b v, then u = v For any logarithmic.

Copyright © 2011 Pearson Education, Inc. Exponential Astonishment.

Properties of Logarithms. Product property of logarithms For all positive numbers m, n, and b, where b  1, log b mn = log b m + log b n.

Quiz 7-4: Convert to exponential form Convert to logarithm form logarithm form Simplify: Find the Inverse: 7. 8.

MAT 150 Module 9 – Logarithmic Functions Lesson 2 – Applications of Logarithms.

The relationship between pH and hydrogen ion concentration.

Let’s take a look at water  2H 2 O  H 3 O + + OH -  [H 3 O + ][OH - ]= 1x M 2  [H 3 O + ]= 1x10 -7 M  [OH - ]= 1x10 -7 M  K w = 1x M.

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

8.3 – Logarithmic Functions and Inverses. What is a logarithm? A logarithm is the power to which a number must be raised in order to get some other number.

7.2 even answers 24) ) )$ ) $ ) Between 10 and 11 years 34) About 0.85 mg 40a) 40b) 40c)

LEQ: How can logarithmic scales to solve real world situations? Logarithmic Scales Sec. 9-6.

Algebra-2 Logarithmic and Exponential Word Problems.

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

3/1/10. CHECK YOUR GRADE… IF YOU HAVE ANYTHING HIGHLIGHTED THEN YOU NEED TO TURN IN MISSING OR MAKEUP WORK BEFORE ARTS/PE TODAY (MONDAY)! –Assignment.

14.5 Common and Natural Logarithms with Applications.

Compare the amount of energy released in an earthquake that registers 6 on the Richter scale with one that registers 3. = 30 6–3 Division Property of Exponents.

Copyright © 2011 Pearson, Inc. 3.5 Equation Solving and Modeling.

.  10.4 Properties of Logarithms Objectives: The student will be able to… 1) Solve exponential equations using common logarithms. 2) Evaluate logarithmic.

Properties of Logarithms Pre-Calculus Teacher – Mrs.Volynskaya.

ACIDS & BASES An Overview. Acids A compound that produces hydrogen ions (H+) when dissolved in water. Properties include sour taste, reactivity with metals,

Logarithmic Scales: Earthquakes, Sounds, and Acids

Applications of Logarithmic Functions

Orders of Magnitude, Applications Section 3. 5c Homework: p

Calculating pH SCH3U/4C Ms. richardson.

Lesson 2 pH and pOH Acid Neutral Base.

Lesson 2 pH and pOH Acid Neutral Base.

Properties of Logarithms

Learning Objectives Define the terms pH, acid, base and buffer.

pH Scale Definition of Acids and Bases

ACIDS and BASES.

Equation Solving and Modeling

Exponential Astonishment

Equation Solving and Modeling

8-3 Logarithmic Functions as Inverses

Acids, Bases and pH.

PH and pOH Acid Neutral Base.

Acids and Bases.

Calculating pH (and pOH)

1)What is the pH of a M acid solution? pH = 3

Water & pH Do Now: OBJECTIVES: Define pH and the pH scale.

Equation Solving and Modeling

Presentation transcript:

Mr. Markwalter

It’s a log jam…

Quiz!

15 minute maximum. All desks clear. Silence until I have all quizzes back in.

AAAAAplications Of logarithms.

In 2001, there was an earthquake in Gujarat India. It measured 7.9 on the Richter scale.

In 1999, there was an earthquake in Athens, Greece. It measured 5.9 on the Richter scale.

In 2001, there was an earthquake in Gujarat India. It measured 7.9 on the Richter scale. In 1999, there was an earthquake in Athens, Greece. It measured 5.9 on the Richter scale. How many times more severe was the 2001 earthquake than the one in Athens?

a=amplitude in micrometers T= the period (don’t worry about this) B accounts for the weakening of the wave What is amplitude?

Amplitude measures the severity. Let’s call the amplitude of the Gujarat earthquake a 1 and the Athens earthquake a 2. We want a 1 /a 2

Let’s start with this…

a 1 /a 2 =100 The Gujarat earthquake was 100 times more severe. The difference in Richter number was =100 Coincidence? Let’ let Bill explain.

 The measure of the concentration of hydrogen ions (in moles per liter). Psst. A mole is unit, or have you heard?

 pH=-log(H + )  H + = the hydrogen ion concentration  More acidic= higher concentration= lower pH

 Some vinegar has a pH of 2.4. Some baking soda has a pH of 8.4  What are the hydrogen ion concentrations?  How many times greater is the hydrogen ion concentration of the vinegar than the baking soda?

A pretty strong acid has a pH of 1.8 while a base has a pH of 9.8.  What are the hydrogen ion concentrations?  How many times greater is the hydrogen ion concentration of the acid than the base?

Option A: I want to start out slow and work my way up. Option B: I feel pretty comfortable with this and am ready to try more.  15 minutes of practice.  5 minutes of review.

 An earthquake in Peru was times more severe than an Earthquake in China. If the earthquake in China scored 2.5 on the Richter scale, what was the score of the Peru earthquake?

 Unit 3 Test Corrections Due TODAY  Test Wednesday  Also, the Benchmark Homework  Saturday Help?