pH
By: Chris, Cris, and Ryan
Acid, Basic, and Neutral Solutions
Acid- Any aqueous solution that has a pH below 7.
Base- Any aqueous sloution that has a pH above 7.
Neutral- Any aqueous solution that has a pH of exactly 7.
Materials & Substances
Materials
-litmus strips
-pH card
-bowl
-spoon
Substances
-milk
-soda
-drinking water
-vinegar
-Listerine
-honey
-bleach
-butter
-cooking oil
-apple juice
-laundry detergent
-pool water(salt)
Procedures
1. Place ⅓ cup of substance in a bowl
2. Put litmus paper in substance for 3 seconds
3. Determine pH by comparing the color of litmus paper and the colors on the pH card
4. Take a picture
pH Scale
Data Table
Vinegar...........................2.....................................2
Lemon juice....................1.................................... 2
Dr. Pepper......................6.....................................4
Honey.............................6.....................................4
Cooking oil......................4.....................................5
Butter.............................6.....................................6
Listerine.........................8.......................................6
Pool water...................... 9................................... 7
Laundry Detergant........10...................................7
Tap water....................... 7................................... 7
Milk.................................6.....................................7
Glass cleaner.................10..................................11
pH Testing
Bottom left- This is tap water. It has a pH of 7 also.
Bottom middle- This is glass cleaner. It has a pH of 11.
Bottom right- This is lemon juice. It has a pH of 2.
PH Testing
In the bottom left- This is tap listerine(Scope). It has a pH of 6.
In the bottom middle- This is butter. It has a pH of 6.
In the bottom right- Is laundry detergent . It has a pH of 7.
Ph Testing
In the bottom left is cooking oil with a pH of 5
In the bottom middle is milk with a Ph of 7
In the bottom right is vinegar with a Ph of 2