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Title: PH LAB REPORT
Description: A study of the cell, the fundamental unit of biological structure and function. An introductory section on bioenergetics and biochemistry lay the groundwork for the consideration of the cell through a modern interdisciplinary approach. The course examines the ultrastructure of the cell and of the most universal cell functions: transport, cellular respiration, photosynthesis, cellular reproduction, and protein synthesis. Lecture themes are illustrated in the laboratory. 3 hours lecture/2 hours laboratory
Description: A study of the cell, the fundamental unit of biological structure and function. An introductory section on bioenergetics and biochemistry lay the groundwork for the consideration of the cell through a modern interdisciplinary approach. The course examines the ultrastructure of the cell and of the most universal cell functions: transport, cellular respiration, photosynthesis, cellular reproduction, and protein synthesis. Lecture themes are illustrated in the laboratory. 3 hours lecture/2 hours laboratory
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Bio-131-55
Professor Bladon
10/5/2022
PH Lab Report
Solution
pH
A
B
C
D
E
7
12
5
4
1
Color w/
Bromothymol Blue
Dark Blue pH 8
Dark Blue pH 12
Olive Green pH 6
Yellow pH 4
Orange/Yellow Color
pH 1
Color w/
Phenolphthalein
Clear Color pH 6
Hot Pink pH 14
Faint Pink Hue pH 7
Clear Color pH 4
Clear Color pH 1
Bromothymol Blue in an acidic solution turns it to a yellow orange color
...
Bromothymol Blue in a neutral solution turns it to a dark blue color
also
...
The advantage of using pH paper over an indicator dye is that pH paper gives you a more accurate
reading and the indicator dye is more of a broad answer
...
Solutions Mixed
A-E
pH
6 pH
Color w/ Bromothymol Blue
Orange/Yellow Color
Bromothymol Blue when combined with the mixed solutions of A-E provides a pH of 6 and the color
becomes orange/yellow
...
Solution D also turned a light purple color
but it had a pH of 4 also indicating it’s an acidic solution
...
Solution B turned a green color with a pH of 12 which indicated this was a base
solution
...
Solution
Extract Color with Anthocyanin
Acid/Base/Neutral
Sprite
Light Pink
Acid
Ajax
Brown
Acid
Vinegar
Bright Pink
Acid
Dish Detergent
Turquoise
Base
Baking Soda
Blue/Green
Base
Ammonia
Olive Green
Base
Aspirin
Light Pink
Base
Sprite, Ajax and Vinegar are acidic solutions
...
There are no neutral household products
...
The pH paper method seems most accurate in determining pH because it provides the most accurate
reading
...
5
Alexi
Matcha Latte Drink
PH 6
Brittany
Lemon Water Drink
PH 2
...
Beaker
Initial pH
Final pH
# Of Drops of HCL
added
Water
5
...
38 pH
1 HCL
Alka-Seltzer
8
...
55 pH
3 HCL
Our distilled water had an initial pH of 5
...
38 pH
...
11, after adding 3 drops of HCL the final pH becomes 7
...
You require more drops of HCL in the Alka-Seltzer because it is an anti-acid which acts as a buffer
...
Title: PH LAB REPORT
Description: A study of the cell, the fundamental unit of biological structure and function. An introductory section on bioenergetics and biochemistry lay the groundwork for the consideration of the cell through a modern interdisciplinary approach. The course examines the ultrastructure of the cell and of the most universal cell functions: transport, cellular respiration, photosynthesis, cellular reproduction, and protein synthesis. Lecture themes are illustrated in the laboratory. 3 hours lecture/2 hours laboratory
Description: A study of the cell, the fundamental unit of biological structure and function. An introductory section on bioenergetics and biochemistry lay the groundwork for the consideration of the cell through a modern interdisciplinary approach. The course examines the ultrastructure of the cell and of the most universal cell functions: transport, cellular respiration, photosynthesis, cellular reproduction, and protein synthesis. Lecture themes are illustrated in the laboratory. 3 hours lecture/2 hours laboratory