Homework Answers
Ans. Osmosis is the movement of solute through semipermeable membrane from low concentration to high concentration. and isotonic is the condition where osmotic pressure is equal in both side..that is no movement of solute through semipermeable membrane.when salty water fish was put it into the fresh water aquarium fish will be die because fish is in isotonic condition so regulate their osmotic pressure...
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13. You have just bought a tropical fish for your freshwater (no salt) aquarium. Unfortunately, you...
End of exercise. Questions Name 1. In a perfectly tied and unbroken bag should we seeulence...
End of exercise. Questions Name 1. In a perfectly tied and unbroken bag should we seeulence of sugar molecules passing throush the membrane"? Quallly your answer in terms of sectiva permeability operates. 2. From your graph of the Influence of temperature on the rate of osmosis, what can you conclude about the effects of temperature on the rate of osmosis Hint: How are temperature and molecular motion related? 3. Was dynamic equilibrium reached in any of the syrup demonstrations? Explain...
2. (10 points) An aquarium has a 1000 L tank containing 400 L of salt water with a concentra- tio...
2. (10 points) An aquarium has a 1000 L tank containing 400 L of salt water with a concentra- tion of 210 grams per liter. A salt water solution with a concentration of 470 grams per liter is pumped into the tank at a rate of 5 liters per minute. The well-mixed solution is drained from the tank at a rate of 3 liters per minute. Additionally, the tank is uncovered, so fresh water evaporates from the tank at a...
can you please help with # 4-6 3. You make a solution that contains 1000 molecules...
can you please help with # 4-6
3. You make a solution that contains 1000 molecules of water. 90 molecules of glucose, and 120 molecules of sucrose. What is the solute concentration of this solution? (2 points) 17.35/ 4. You now add a cell into the solution from question 3. This cell has a 20% solute concentration. a. Is the outside of the cell hypertonic, hypotonic, or isotonic when compared to the inside of the cell? How do you know?...
CRITICAL THINKING QUESTIONS 1. A pre-weighed dialysis bag which contained a solution of 10% glucose was...
CRITICAL THINKING QUESTIONS 1. A pre-weighed dialysis bag which contained a solution of 10% glucose was placed in a beaker containing a solution of 20% glucose. After one hour, the bag was weighed again a. Calculate the % mass change of this dialysis bag from the following information: • Mass of bag before experiment: 15.39 • Mass of bag after experiment: 12.79 b. Determine the tonicity of the beaker when it is compared to the dialysis bag: 2. facell had...
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...
13. You start working for the British Intelligence forces as agent 006.022 x 10" (OONA). Unfortunately,...
13. You start working for the British Intelligence forces as agent 006.022 x 10" (OONA). Unfortunately, you are captured by an evil villain who plans to dispose of you by shooting you with a laser (Helium- Neon, 1 = 1.15 um, 500 W power). Luckily for you, before he shoots you he leaves you in a room with a spectrophotometer, three solutions, and a few cuvettes of various sizes (0.1, 1, 10, and 20 cm path lengths). A) In what...
13 Suppose you are a crude oil trader working for Trafigura. You have just bought the...
13 Suppose you are a crude oil trader working for Trafigura. You have just bought the entire stock of an oil tanker (2 million barrels of crude oil) at 59.2 dpb (dollars per barrel). To hedge your position you enter into a 3-year forward contract at 53.8 dpb. However, after three weeks the time basis is trading at -4.5 dpb. What are your mark to market profits in USD? (In case it is necessary express losses as a negative profit,...
3) Your company has a tax rate of 35%. You have just bought a new piece...
3) Your company has a tax rate of 35%. You have just bought a new piece of equipment which cost $150,000. If the equipment increases revenue by $50,000 per year, and will be depreciated using straight-line depreciation over a period of five years, by how much will the company's annual income taxes increase (or decrease) due to the new equipment?
You have just bought out your only competitor in the region for the supply of electrical...
You have just bought out your only competitor in the region for the supply of electrical power. With the acquisition you now have a second power generation plant (Q2), but one that operates slightly differently to the one you already had (Q1). Both power plants will generate an identical electrical product (voltage and frequency) and can be combined to supply the market, i.e. QT otal = Q1 + Q2. The inverse demand function you are faced with can be represented...
Homework In this assignment you will be asked questions about water and osmotic pressure. Complete the...
Homework In this assignment you will be asked questions about water and osmotic pressure. Complete the assignment as directed and post your answer to the message board. Remember, do not upload files, I may not be able to open them so just leave everything on your post for me to read. You may use internet resources to respond but do not, that is do not, copy and paste from web sites. Also, using quotes does not make something your own...
End of exercise. Questions Name 1. In a perfectly tied and unbroken bag should we seeulence of sugar molecules passing throush the membrane"? Quallly your answer in terms of sectiva permeability operates. 2. From your graph of the Influence of temperature on the rate of osmosis, what can you conclude about the effects of temperature on the rate of osmosis Hint: How are temperature and molecular motion related? 3. Was dynamic equilibrium reached in any of the syrup demonstrations? Explain...
2. (10 points) An aquarium has a 1000 L tank containing 400 L of salt water with a concentra- tion of 210 grams per liter. A salt water solution with a concentration of 470 grams per liter is pumped into the tank at a rate of 5 liters per minute. The well-mixed solution is drained from the tank at a rate of 3 liters per minute. Additionally, the tank is uncovered, so fresh water evaporates from the tank at a...
can you please help with # 4-6
3. You make a solution that contains 1000 molecules of water. 90 molecules of glucose, and 120 molecules of sucrose. What is the solute concentration of this solution? (2 points) 17.35/ 4. You now add a cell into the solution from question 3. This cell has a 20% solute concentration. a. Is the outside of the cell hypertonic, hypotonic, or isotonic when compared to the inside of the cell? How do you know?...
CRITICAL THINKING QUESTIONS 1. A pre-weighed dialysis bag which contained a solution of 10% glucose was placed in a beaker containing a solution of 20% glucose. After one hour, the bag was weighed again a. Calculate the % mass change of this dialysis bag from the following information: • Mass of bag before experiment: 15.39 • Mass of bag after experiment: 12.79 b. Determine the tonicity of the beaker when it is compared to the dialysis bag: 2. facell had...
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...
13. You start working for the British Intelligence forces as agent 006.022 x 10" (OONA). Unfortunately, you are captured by an evil villain who plans to dispose of you by shooting you with a laser (Helium- Neon, 1 = 1.15 um, 500 W power). Luckily for you, before he shoots you he leaves you in a room with a spectrophotometer, three solutions, and a few cuvettes of various sizes (0.1, 1, 10, and 20 cm path lengths). A) In what...
13 Suppose you are a crude oil trader working for Trafigura. You have just bought the entire stock of an oil tanker (2 million barrels of crude oil) at 59.2 dpb (dollars per barrel). To hedge your position you enter into a 3-year forward contract at 53.8 dpb. However, after three weeks the time basis is trading at -4.5 dpb. What are your mark to market profits in USD? (In case it is necessary express losses as a negative profit,...
3) Your company has a tax rate of 35%. You have just bought a new piece of equipment which cost $150,000. If the equipment increases revenue by $50,000 per year, and will be depreciated using straight-line depreciation over a period of five years, by how much will the company's annual income taxes increase (or decrease) due to the new equipment?
Homework In this assignment you will be asked questions about water and osmotic pressure. Complete the assignment as directed and post your answer to the message board. Remember, do not upload files, I may not be able to open them so just leave everything on your post for me to read. You may use internet resources to respond but do not, that is do not, copy and paste from web sites. Also, using quotes does not make something your own...
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