Preview

Unit Plan on Acids and Bases

Powerful Essays
Open Document
Open Document
6550 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Unit Plan on Acids and Bases
Unit Plan

On

Acids & Bases

May 25, 2006

Table of Contents

I. General Objectives Page 3

II. Learning Outcomes Page 4

III. Assessment, Grading & Resources Page 5

IV. Tending to different Learning styles Page 7

V. Schedule Page 8

VI. Appendix 1 Page 20

Acids and bases

Unit plan
Grade 12

General Objectives:

▪ Introduce pH, acid and base definition ▪ Discuss acid, base, strong acid, weak acid, aqueous, neutral, pH definitions. ▪ Introduce Kw the ion product of water. ▪ Introduce Kw the ion product of water ▪ Explain through Kw why solutions with pH less than 7 are acidic and why those with pH greater than 7 are basic. ▪ Define volumetric analysis, titration, standard solution, equivalence point and End point, primary standard, secondary standard, all in PowerPoint presentation.. ▪ Define the experiment’s purpose: 1 - To study the important technique of acid, base titration. 2 - Determine the concentration of an unknown monoprotic acid. ▪ Explain how to calculate pH of a strong acid, a strong base, weak acid, and weak base. ▪ Discuss the experiment and its results. ▪ Discuss possible errors random and systematic errors ▪ Distinguish between precision and accuracy. ▪ Give guidelines for writing the Lab report ▪ Explain the sections of a Lab report: the abstract, introduction, procedure, discussion, conclusion, and references ▪ Explain reaction between a strong acid and a strong base. ▪ State the ionic equation for this reaction ▪ Describe the shape of the titration curve for reactions of strong acid and strong base, weak acid and strong base, strong acid and weak base. ▪ Model solving strong acid, strong base problems. ▪ Explain how to calculate pH before, at and after equivalence in a strong acid strong base titration, weak acid strong base titration and

You May Also Find These Documents Helpful

  • Good Essays

    ka lab report

    • 692 Words
    • 3 Pages

    When titrating a weak acid, HA, with a strong base the equilibrium between the weak acid and its ion is reestablished after every addition of base. The reaction in this titration is pushed towards the right after every addition of a base. At the beginning of a titration between a weak acid and a strong base, there is mostly HA in the solution with small amounts of H30+ and A- because only a small amount of base has been added therefore a small amount of ionization has occurred. As we added more base, more HA is ionized and more salt formation occurs meaning the concentration of HA will decrease while the concentration of A- will increase. The pH rises above the equivalence point because we are adding base to a solution with a relatively large volume. At the end of the titration the ratio of [A-]/[HA] goes from low to high. This means that all of the HA will be neutralized, causing the pH to change. Because of the rapid pH change around the equivalence point, the titrant has to be added in lesser and lesser amounts as we approach the equivalence point.…

    • 692 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Lab 5 Acid Base Chemistry 2

    • 1240 Words
    • 17 Pages

    3. Define pH and the pH scale and understand how pH relates to the acidity of a substance.…

    • 1240 Words
    • 17 Pages
    Satisfactory Essays
  • Better Essays

    In this assignment you will be asked to rank aqueous solutions of acids, bases, and salts in order of increasing pH. This is most easily done by first identifying the strong acids that have the lowest pH, the strong bases that have the highest pH, and the neutral solutions that have a pH near 7. The weak acids…

    • 1114 Words
    • 5 Pages
    Better Essays
  • Good Essays

    pH < 7 Basic solutions = pH > 7 • Most biological fluids have pH 6 – 8 – pH values in human stomach can reach 2 • Each pH unit represents a 10-fold difference in H+ & OH- concentrations. Acids and bases • Acids – release H+ ions in water • Bases -- release OH- ions in water • pH is a measure of hydrogen ion (H+) concentration – Lower pH – acidic – Higher pH basic – pH is logarithmic – a difference of 1 (from pH 4 to 5) is actually a ten-fold increase in H+ conc. • From 3 to 7?…

    • 1207 Words
    • 12 Pages
    Good Essays
  • Powerful Essays

    Chm270 Final Exam

    • 1557 Words
    • 7 Pages

    QUESTION 1 a) i) Define an acid according to Lewis theory. (1 mark) ii) Write the ionization equation of ammonia in water and calculate the pH value of a 0.10 M ammonia solution. (Kb NH3 = 1.8 x 10"5) (2 marks) Calculate the pH of a 0.200 M solution of NH4CI. The Kb value of ammonia is 1.8x10- 5 andK w =1.0x10" 1 4 . (3 marks)…

    • 1557 Words
    • 7 Pages
    Powerful Essays
  • Better Essays

    12. Anything below the pH level of 7 is an acid and anything about the pH level of 7 is a base.…

    • 1117 Words
    • 5 Pages
    Better Essays
  • Good Essays

    Maintaining a Balance Quiz

    • 1196 Words
    • 5 Pages

    7. Using the pH scale, identify how the pH can be used to describe the acidity of a substance.…

    • 1196 Words
    • 5 Pages
    Good Essays
  • Satisfactory Essays

    Question 2: discuss the term pH in terms of its ability to describe the acidity of a substance.…

    • 687 Words
    • 3 Pages
    Satisfactory Essays
  • Good Essays

    Lab2

    • 520 Words
    • 3 Pages

    Compare and contrast acids and bases in terms of their H+ ion and OH- ion concentrations.…

    • 520 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    helium

    • 360 Words
    • 2 Pages

    Instructions: Enter the Virtual Lab, and conduct the experiments provided before going out into the virtual field for additional research. Please type your answers on this form. When your lab report is complete, submit it to the Submitted Assignments area of the Virtual Classroom.…

    • 360 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    paper

    • 542 Words
    • 3 Pages

    An acid-base titration is carried out by adding an acidic titrant to a basic solution. At which point should the titration be stopped and the volume of titrant used be recorded?…

    • 542 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Romeo and Juliet

    • 478 Words
    • 2 Pages

    2. Compare acidic and basic solutions in terms of their H+ ions and OH- ion concentrations.…

    • 478 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Biology

    • 2483 Words
    • 12 Pages

    Explain the pH scale and how it is used to indicate acidic, alkaline, and neutral solutions.…

    • 2483 Words
    • 12 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Acids And Bases HW 1

    • 117 Words
    • 1 Page

    Acids and Bases HW Calculate the pH of the following solutions (show work) 0.0010 M NaOH 0.01 M HCl 0.030 M HBr 2.50 M NH4OH (Assume 5.00 dissociation) 5.0 M HNO2 (Assume 1.0 dissociation) 0.150 M KOH 0.050 M Ca(OH)2 0.50 M HNO3 2.0 M HC2H3O2 (Assume 5.0 dissociation) 3.0 M HF (Assume 10.0 dissociation) Name the following H2SO4 ___________________________ HCl _____________________________ HNO3 __________________________ HF_______________________________ Fe(OH)2___________________________ Zn (OH)2 ___________________________ Get the formula from the following and identify as a strong acid, weak acid, strong base, or weak base Magnesium hydroxide _________________________ Ammonium hydroxide _________________________ Nitrous acid _________________________________ Hydrobromic acid ___________________________ Sulfuric Acid _______________________________ Phosphoric Acid ____________________________ Hydroiodic acid ________________________ An acid is anything __________ on the pH scale. A base is anything ___________ on the pH scale. The pH scale ranges from _____ to _______. Acids taste___________________ while bases taste____________________.…

    • 117 Words
    • 1 Page
    Satisfactory Essays
  • Satisfactory Essays

    Acid/Base Balance

    • 485 Words
    • 2 Pages

    What is the normal range of pH levels of blood and tissue fluids in the human body?…

    • 485 Words
    • 2 Pages
    Satisfactory Essays