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Tuesday, August 3, 2021

Topic 8:Acids & Bases ll Term 3

ACIDS & BASES 


Background: It is important for you to understand

the basics of pH before beginning this topic.


Here are some questions you may want to discuss before getting started.


  • What is pH?

  • How do you measure pH?You can use litmus paper.

  • What is the scale pH is measured on?

  • What pH level does water have? Is water acidic, basic, or neutral?

  • What is the most basic pH level?14 



Notes about Acids & Bases:

If liquids have so much Hydroxide it is an Acid

H 30 H pH scale only has 0-14 

Orange, grapes, and lemon had different acids

1.Tooth base

2.baking soda

3.cleaners

4.soap

5.Lemon juice

6.Vinegar

7.Detergent

8.Watermelon   

9.Grapes

10.Oranges.



Amie or Purpose:Test the pH levels in

different household products.


Equipment: Well plate, pH strips/litmus

paper, pH chart/table,Dropper


Products:


Baking soda 

Distilled water

Window cleaner

Toilet bowl cleaner

Lemon juice 

Milk

Orange Juice 

Apple juice 

Vinegar 

Detergent 

Tea/coffee 


Recorde your litmus test for household substances 

Red litmus paper=Acid

Blue litmus paper= base


Substance 

Acid/Base

(Prediction)

Colour changes from?

(Litmus paper is Blue )

Result

(Acid/Base)

Detergent

Base

7

Neutral

Vinegar 

Acid

1

Acid

Lemon Juice 

Acid

1

Acid

Apple Juice

Acid

1

Acid

Orange Juice

Acid

1

Acid

Window cleaner

Base

14

Neutral

Toilet cleaner

Base

7

Base

Distilled Water

Neutral

7

Neutral

Milk

Neutral

7

Neutral

Tea

Neutral

3

Acid

Baking Soda

Neutral

12

Neutral











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