Download presentation
Presentation is loading. Please wait.
Published byFay McCarthy Modified over 6 years ago
1
Find assigned seat Get out your journal Have writing utensil ready
Bell ringer Find assigned seat Get out your journal Have writing utensil ready November 3/4
2
Announcements Random journal check THIS WEEK
Ms. King will count up your stamps for a grade If you have no journal, you will receive a 0 for the first journal check NON-NEGOTIABLE Grace Period at the End of class Complete any make-up work Set up your journal (if you’ve been absent) Glue/staple/attach any work Ms.King will stamp completed pages
3
Lets go over independent practice from last class
On Page 4 Correct any incorrect answers
4
QUIZ – NO TALKING! SUCCESS! C – NONE H – use your notes
A – acids/bases quiz M – none; raise your hand to get up P – everyone! SUCCESS!
5
Acid/base lab We will do Pre-Lab as a class
Complete on page ____ in journal. Add assignment to your table of contents. Acid/base lab We will do Pre-Lab as a class Students with Lab Safety will perform lab Students without will watch demonstration
6
pH Paper Tells us the specific pH of a solution by changing colors.
PRE LAB pH Paper Tells us the specific pH of a solution by changing colors. What colors represent acidic solutions? What colors represent basic solutions?
7
10 MINUTES COLOR pH Draw the pH color chart (above) in your journal.
Add respective color shading to each pH. Use chart on the right as reference. COLOR pH Red 2 Orange/Red 3 Orange 4 Light Orange 5 Yellow 6 Green 7 Dark Green/Blue 8 Dark Blue 9 Light Purple 10 Dark Purple 11 10 MINUTES
8
PRE LAB Red litmus paper = turns blue when there is a base
Blue litmus paper = turns red when there is an acid
9
**If you are horsing around, you’re out!**
Rules DO NOT DRINK OR CONSUME ANYTHING! BE CAREFUL, DO NOT MAKE A MESS! Must wear goggles! Keep them on up on until we’re done. DO NOT SMELL DIRECTLY, whiff only **If you are horsing around, you’re out!**
10
PROCEDURE – 10 mins Problem: Materials: Procedure
What is the pH of 10 unknown substances? Materials: *red litmus paper *blue litmus paper *pH paper *goggles Procedure Dip pH paper in unknown solution #1, rest on paper Dip blue litmus paper in unknown solution #1; rest on paper Dip red litmus paper in unknown solution #1; rest on paper Record your results in the Data Chart *
11
DATA CHART Solution # / Name Litmus Paper Changed pH paper color
What is its pH? Acid or Base? 1 2 3 4 5 6 7 8 9 10
12
PRE LAB QUESTIONS
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.