1 / 10

Mother’s Day is THIS Sunday!

Mother’s Day is THIS Sunday!. Wednesday, May 7 th : “A” Day Thursday, May 8 th : “B” Day Agenda. Homework questions/collect Lab write-up: “Titration of an Acid and a Base ” Virtual titration Homework: “Titrations Practice” Worksheet Extra Credit Opportunity Lab next time – be sure to

pembroke
Download Presentation

Mother’s Day is THIS Sunday!

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Mother’s Day is THIS Sunday!

  2. Wednesday, May 7th: “A” DayThursday, May 8th: “B” DayAgenda • Homework questions/collect • Lab write-up: “Titration of an Acid and a Base” • Virtual titration • Homework: “Titrations Practice” Worksheet • Extra Credit Opportunity Lab next time – be sure to dress appropriately.. No flip-flops!

  3. Homework Questions • Sec. 15.3 review, pg. 556: #1-12

  4. Lab: “Titration of an Acid and a Base”Purpose • The purpose of this lab is to determine the normality of an unknown concentration of sodium hydroxide, NaOH. • For an acid or a base that dissociates in a 1:1 ratio, the normality is equal to the molarity. NaOH Na+ + OH– HCl + H2O H3O+ + Cl- (Both acid and base are 1:1 ratio)

  5. Lab: “Titration of an Acid and a Base” • After the titration, the normality of the base will be calculated using the following formula: Normality(B) Volume(B) = Normality(A) Volume(A) • Rearrange to solve for the normality(B): Normality(B) = Normality(A)Volume(A) Volume(B)

  6. Lab: “Titration of an Acid and a Base” • Calculation #4: Absolute error: Ea = average Normality(B) – actual value • Calculation #5: Relative error: Er = absolute error X 100 % actual value

  7. Lab: “Titration of an Acid and a Base”Write-Up • Title • Purpose • Hypothesis: What do you think the concentration of the base is? • Materials • Procedure • Reflection Statement

  8. Virtual Titration • Before we do our actual acid-base titration next time, I thought it would be a good idea (and fun) to do some virtual titrations for practice. • Follow the handout and do HCl and NaOH first. • When you’re finished, try other acid-base combinations... • Homework: • “Titrations Practice” worksheet

  9. Extra Credit Opportunity Morrison High School presents “The Wizard of Oz”! • Friday, May 9th: 7:00 pm • Saturday, May 10th: 7:00 pm • Sunday, May 11th: 2:00 pm • Tickets: $5:00 • Attend ANY performance • Have me sign your program • Bring program to class on Mon/Tues You will get 15 extra credit points!

More Related