Homework Answers
The experiment tells us about the osmosis.
In case of isotonic solution, there is not found change in the weight of potato cubes. Because water potential is same in both potato cubes and the isotonic solution.
In case of distilled water( hypotonic solution), there is found increase in weight of the potato cubes. Because water potential of distilled water is higher than potati cubes. That's why water flow from distilled water to potato cubes via osmosis.
In case of 2.5% saline (hypertonic solution), the weight of potato cubes is decreased. Because the water potential of hypertonic solution is lower than potato cubes. That's why water will flow from potato cubes to the hypertonic solution and it leads to decrease in weight of potato cubes.
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need help writing an abstract for a lab report about observing
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help with volume calculation and percent change calculation CHEM 1151 - Lab Manual REPORT SHEET Osmosis-The...
help with volume calculation and percent change
calculation
CHEM 1151 - Lab Manual REPORT SHEET Osmosis-The Potato Lab Name Catherine Crumley_ Date ID|3119_Section 33 Partner's Name Brooke Cline Instructor N. Msimanga Data: Potato Disks BEFORE Soaking (1 point for each blank) Mass Diameter Height Potato Disk "A 20 % w/ Naci 2.66e8a 2.50cm 0.40 cm Potato Disk "B" 0.9 % w/v NaCl 2.6829 2.30 cm 0.50 cm Potato Disk "C" Distilled Water 2.874 2.50 cm 0.50 cm Data: Potato Disks...
1. Describe the changes in your potato sample when placed in distilled water. Based on these...
1. Describe the changes in your potato sample when placed in distilled water. Based on these changes, was the water hypertonic, isotonic, or hypotonic compared to the cells of the potato? Explain your reasoning in terms of the flow of water into or out of the potato cells. 2, Describe the changes in your potato sample when placed in 0.9% NaCl solution. Based on these changes, was the 0.9% NaCl hypertonic, isotonic, or hypotonic compared to the cells of the...
If a potato core is allowed to dehydrate by sitting in open air, would the water potential of the potato cells decrease or increase
If a potato core is allowed to dehydrate by sitting in open air, would the water potential of the potato cells decrease or increase? i think it decreases but i'm not sure. and if a plant cell has a lower water potential than its surroundings and if pressure=0, is the cell hypertonic(in terms of solute concentration) or hypotonic to its environment? will the cell gain or lose water? any ideas...?http://en.wikipedia.org/wiki/Water_potentialanalysis queswhat is water potential?Osmosis Lab /27819 Name: ________________________________ Date: ___________...
permeable to the dialysis "membrane." e olute for today's lab is sucrose, which is not Osmosis...
permeable to the dialysis "membrane." e olute for today's lab is sucrose, which is not Osmosis Procedure 1. Fill four beakers with the following Beaker A: 200 ml of water Beaker B: 200 ml of water Beaker C: 200 ml of 30% sucrose solution Beaker D: 200 ml of water 2. Fill four dialysis bags with the following: Bag A: 10 ml of water Bag B: 10 ml of 30% sucrose Bag C: 10 ml of water Bag D: 10...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one you did, using a different combination of substances. Determine his/her results and explain them by answering the questions in the table by filling in the blank boxes. Assume that the dialysis bag is impermeable to sucrose. Set-up 1 Set-up 2 Set-up 3 Set-up 4 Set-up 5 Bags 15 mL in each Tap water Tap water 55% sucrose 21% sucrose solution solution Tap water Beakers...
hey, can anybody help me with this. please answer all of the questions. Thank you so...
hey, can anybody help me with this. please answer all of the
questions. Thank you so much.
- Lab Report Form - Question (1 point): 30 total points possible Hypothesis (2 points): Variables Why did you choose this as the variable? (1 point) (2 points) Dependent Variable (2 points) (1 point) Independent Variable (1 point each for a total of 3 points) (1 point) Controlled Variables - a mi Control Group: (2 points) Experimental Group: (2 points) Conclusion: (1 point)...
help with volume calculation and percent change
calculation
CHEM 1151 - Lab Manual REPORT SHEET Osmosis-The Potato Lab Name Catherine Crumley_ Date ID|3119_Section 33 Partner's Name Brooke Cline Instructor N. Msimanga Data: Potato Disks BEFORE Soaking (1 point for each blank) Mass Diameter Height Potato Disk "A 20 % w/ Naci 2.66e8a 2.50cm 0.40 cm Potato Disk "B" 0.9 % w/v NaCl 2.6829 2.30 cm 0.50 cm Potato Disk "C" Distilled Water 2.874 2.50 cm 0.50 cm Data: Potato Disks...
1. Describe the changes in your potato sample when placed in distilled water. Based on these changes, was the water hypertonic, isotonic, or hypotonic compared to the cells of the potato? Explain your reasoning in terms of the flow of water into or out of the potato cells. 2, Describe the changes in your potato sample when placed in 0.9% NaCl solution. Based on these changes, was the 0.9% NaCl hypertonic, isotonic, or hypotonic compared to the cells of the...
permeable to the dialysis "membrane." e olute for today's lab is sucrose, which is not Osmosis Procedure 1. Fill four beakers with the following Beaker A: 200 ml of water Beaker B: 200 ml of water Beaker C: 200 ml of 30% sucrose solution Beaker D: 200 ml of water 2. Fill four dialysis bags with the following: Bag A: 10 ml of water Bag B: 10 ml of 30% sucrose Bag C: 10 ml of water Bag D: 10...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one you did, using a different combination of substances. Determine his/her results and explain them by answering the questions in the table by filling in the blank boxes. Assume that the dialysis bag is impermeable to sucrose. Set-up 1 Set-up 2 Set-up 3 Set-up 4 Set-up 5 Bags 15 mL in each Tap water Tap water 55% sucrose 21% sucrose solution solution Tap water Beakers...
hey, can anybody help me with this. please answer all of the
questions. Thank you so much.
- Lab Report Form - Question (1 point): 30 total points possible Hypothesis (2 points): Variables Why did you choose this as the variable? (1 point) (2 points) Dependent Variable (2 points) (1 point) Independent Variable (1 point each for a total of 3 points) (1 point) Controlled Variables - a mi Control Group: (2 points) Experimental Group: (2 points) Conclusion: (1 point)...
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