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1. Temperature of control thermos 2. Is any gas leaving the control thermos? 3. 25 What pH does this color correspond to? Explain why this particular pH is found. 102 No What color is the pH indicator in the flask with the control thermos? Giver Explain. Explain why this particular pH is found. 4. Temperature of experimental thermos Explain any difference as compared with control thermos temperature. 5. Is any gas leaving the experimental thermos? Explain. What color is the pH indicator in the flask with the experimental thermos?

1. Temperature of control thermos 2. Is any gas leaving the control thermos? 3. 25 What pH does this color correspond to? Explain why this particular pH is found. 102 No What color is the pH indicator in the flask with the control thermos? Giver Explain. Explain why this particular pH is found. 4. Temperature of experimental thermos Explain any difference as compared with control thermos temperature. 5. Is any gas leaving the experimental thermos? Explain. What color is the pH indicator in the flask with the experimental thermos?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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2. Fermentation Experiment in Thermos Bottle a. Procedure Observe the thermos bottle demonstration in the back of the lab. Both ther- moses, control and experimental, were set-up simultaneously at room temperature. A mixture of yeast and water was placed in the control thermos. Read the temperature on the thermometer in the control thermos Istomins and record it below. Note the tubing that leads from the thermos to a flask of water containing a pH indicator. This pH indicator will change color as the pH of the water changes. A green color indicates a pH of 7 (neutral), a yellow color indicates a pH of 5 (acidic), and a blue color indicates a pH of 9 (basic). The major substance that would change the pH of the water in this experiment is carbon dioxide. When CO₂ combines with H₂O, a weak acid 87
Transcribed Image Text:2. Fermentation Experiment in Thermos Bottle a. Procedure Observe the thermos bottle demonstration in the back of the lab. Both ther- moses, control and experimental, were set-up simultaneously at room temperature. A mixture of yeast and water was placed in the control thermos. Read the temperature on the thermometer in the control thermos Istomins and record it below. Note the tubing that leads from the thermos to a flask of water containing a pH indicator. This pH indicator will change color as the pH of the water changes. A green color indicates a pH of 7 (neutral), a yellow color indicates a pH of 5 (acidic), and a blue color indicates a pH of 9 (basic). The major substance that would change the pH of the water in this experiment is carbon dioxide. When CO₂ combines with H₂O, a weak acid 87
eve called carbonic acid (H₂CO3) is formed. Both flasks of water, attached to control and experimental thermoses, were originally set-up with water of a pH 7 (neutral). Keeping this information in mind, observe the control flask and then answer the questions below. A mixture of yeast, water, grape juice, and sugar was placed in the experimental thermos. Read the temperature on the thermometer in the experimental thermos and record it below. Observe the flask connected to the experimental thermos and answer the questions below. b. Questions 1. Temperature of control thermos 2. 3. Is any gas leaving the control thermos? 25 What pH does this color correspond to? Explain why this particular pH is found. No What color is the pH indicator in the flask with the control thermos? Giver Explain. 4. Temperature of experimental thermos Explain any difference as compared with control thermos temperature. Explain why this particular pH is found. 5. Is any gas leaving the experimental thermos? Explain. What color is the pH indicator in the flask with the experimental thermos?
Transcribed Image Text:eve called carbonic acid (H₂CO3) is formed. Both flasks of water, attached to control and experimental thermoses, were originally set-up with water of a pH 7 (neutral). Keeping this information in mind, observe the control flask and then answer the questions below. A mixture of yeast, water, grape juice, and sugar was placed in the experimental thermos. Read the temperature on the thermometer in the experimental thermos and record it below. Observe the flask connected to the experimental thermos and answer the questions below. b. Questions 1. Temperature of control thermos 2. 3. Is any gas leaving the control thermos? 25 What pH does this color correspond to? Explain why this particular pH is found. No What color is the pH indicator in the flask with the control thermos? Giver Explain. 4. Temperature of experimental thermos Explain any difference as compared with control thermos temperature. Explain why this particular pH is found. 5. Is any gas leaving the experimental thermos? Explain. What color is the pH indicator in the flask with the experimental thermos?
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