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Sunday 1 August 2021

Tech-Acid and Bases

 Really late from this one, but here is my tech lesson on Thursday last week. We got to do a really fun and cool experiment. We learned about pH. We got to test some different liquids with the litmus paper. Lets just say somethings some of the liquids were good. I did this with my bestie Roman and we had a great time. Before I forget we did this experiment with Miss/Mrs Smallwood Can't wait for the next experiment. ENJOY!  

Topic 8-Acid and Bases

Question-

What is pH?

pH is a scale used to specify the acidity or basicity of a solution. Acidic solutions are measured to have lower pH values than basic. 


How do you measure pH ?

You can measure it with things like litmus paper,measuring systems and much more


What is the scale pH is measured on?

pH is a measure of how acidic/basic water is. The range goes from 0 - 14. 7 being neutral.


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

Between 6.5 to 8.5. Water is neutral 


What is the most acidic pH level?

0

What is the most basic pH level?

14 


0-6-acidic

7-neutral 

8-14-basic 

Note:

Blood-7-neutral

Coke-3-acidic 


Atoms:

Simplest format of matter

Acids-have more hydrogen ions

Bases-have hydroxide ions 


Experiment:

Purpose:Test the pH levels different household products


Equipment:

Well plate

pH strips/litmus paper

pH chart/table 

Dropper

                        Products:

Baking soda 

Distilled water 

Window clever

Toilet bowl cleaner

Lemon juice 

Milk 

Orange juice 

Apple juice 

Vinegar 

Detergent

Tea/Coffee


Substance

Acid base

Colour changes

Ion result

Milk

B

Red-red blue-red

Acid

Tea

B

Red-red blue-red

Acid

Baking soda

B

Red-blue blue-blue

base

Window cleaner

A

Blue-red red-red

Acid

detergent

A

Blue-blue red-red

Neutral

Toilet cleaner

A

Red-red blue-red 

Acid

orange

A

Blue-red red-red

Acid

lemon

A

Red-red blue-red

Acid 

apple

A

Blue-red red-red

Acid 

Distilled water

N

Red-red blue-red

Acid

Vinegar

A

Blue-red red-red 

Acid



Photos:

One with the red litmus paper

The one with blue litmus paper.




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