Station 3: Hydrogen Peroxide (H202) and Yeast 1. Clean your small graduated cylinder by rinsing with water. Carry your small cylinder, your spatula, and ONE of your large test tubes in a 250 mL beaker to station 3. 2. Using your spatula, add a pea size amount of yeast to the test tube. 3. Measure about 2 mL of 3% hydrogen peroxide in your small graduated cylinder. 4. BEFORE you add the hydrogen peroxide to the yeast, have the other lab partner light a wooden splint. Allow it to burn for a few seconds, and then gently blow out the flame so that it leaves some red glowing embers. 5. With the test tube sitting propped up in the 250 mL beaker, add the hydrogen peroxide to the yeast and immediately bring the red glowing embers in contact with the bubbles coming out of the test tube. NOTE: You do not want to get the wood splint wet. You just want to bring it into contact with the gas in the bubbles. 6. Record your detailed observations in the data section, and return to your lab bench. 7. Use water to dislodge the contents of the test tube into your waster beaker. The wooden splint goes into the garbage.
Station 3: Hydrogen Peroxide (H202) and Yeast 1. Clean your small graduated cylinder by rinsing with water. Carry your small cylinder, your spatula, and ONE of your large test tubes in a 250 mL beaker to station 3. 2. Using your spatula, add a pea size amount of yeast to the test tube. 3. Measure about 2 mL of 3% hydrogen peroxide in your small graduated cylinder. 4. BEFORE you add the hydrogen peroxide to the yeast, have the other lab partner light a wooden splint. Allow it to burn for a few seconds, and then gently blow out the flame so that it leaves some red glowing embers. 5. With the test tube sitting propped up in the 250 mL beaker, add the hydrogen peroxide to the yeast and immediately bring the red glowing embers in contact with the bubbles coming out of the test tube. NOTE: You do not want to get the wood splint wet. You just want to bring it into contact with the gas in the bubbles. 6. Record your detailed observations in the data section, and return to your lab bench. 7. Use water to dislodge the contents of the test tube into your waster beaker. The wooden splint goes into the garbage.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
Related questions
Question
can you exapin this part?
Transcribed Image Text:Station 3: Hydrogen Peroxide (H202) and Yeast
1. Clean your small graduated cylinder by rinsing with water. Carry your small cylinder, your spatula,
and ONE of your large test tubes in a 250 mL beaker to station 3.
2. Using your spatula, add a pea size amount of yeast to the test tube.
3. Measure about 2 mL of 3% hydrogen peroxide in your small graduated cylinder.
4. BEFORE you add the hydrogen peroxide to the yeast, have the other lab partner light a wooden
splint. Allow it to burn for a few seconds, and then gently blow out the flame so that it leaves some red
glowing embers.
5. With the test tube sitting propped up in the 250 mL beaker, add the hydrogen peroxide to the yeast
and immediately bring the red glowing embers in contact with the bubbles coming out of the test tube.
NOTE: You do not want to get the wood splint wet. You just want to bring it into contact with the gas
in the bubbles.
6. Record your detailed observations in the data section, and return to your lab bench.
7. Use water to dislodge the contents of the test tube into your waster beaker. The wooden splint goes
into the garbage.
Transcribed Image Text:Station 3: Hydrogen Peroxide and Yeast
Observatons:
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Recommended textbooks for you
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY