Homework Answers
Add Answer to:
Answer the following problems. Show your solutions 1. Encircle which side will increase in volume (A...
Tesm Pre-Lab Study Questions I. In 1 In making pickles, the cucumber making pick les, a cucumber ...
Tesm Pre-Lab Study Questions I. In 1 In making pickles, the cucumber making pick les, a cucumber is placed in when it is left in the salt solution for some time. a concentrated salt solution. Explain what happens t wso6 osmotic act on hresh the 2. Why is it important that cell membranes are 3. What are the differences between solutions, colloids, and . Indicate the compartment (A or B) that will increase in volume for each of the following...
Home Alan Hama PRELABORATORY EXERCISE 15 15 Osmosi 1 Provide a matches each in e mbrane...
Home Alan Hama PRELABORATORY EXERCISE 15 15 Osmosi 1 Provide a matches each in e mbrane a involves the movement of water across a m Majority component of a solution Seven e Quantity of Soute in a m ount of solution d involves the movement of solute across a semipermeabile membrane • Minority component of a solution 2 Wilted lettuce may be revived by placing themes in a bowl of water. Name the process that accounts for this and explain...
7. Which of the following solutions is isotonic (no osmosis) with a 0.30 M NaNO, solution?...
7. Which of the following solutions is isotonic (no osmosis) with a 0.30 M NaNO, solution? {hint - Find the osmosis molarity or "osmolarity" = (# ions)M} a) 0.10 M CaCl2 b) 0.30 M glucose c) 0.60 M NaCl d) 0.15 M AICI; e) 0.75 M KCI (n-1 for glucose) 8. If a solution of 0.20 M Mg(NO3)2 is separated from a 0.25 M KCl solution by a membrane that is permeable to water, osmosis will occur. Describe the osmotic...
2-27. What volume of a 6.0%(m/V) solution of ethanol contains 30 g of ethanol A) 6,0...
2-27. What volume of a 6.0%(m/V) solution of ethanol contains 30 g of ethanol A) 6,0 mL B) 10.ml C) 50 mL D) 5.0 mL E) 30.ml 7 2-28. How many 1:10 serial dilutions are needed to prepare a pH 4 solution from 0.1 M hydrochloric acid A) 1 B) 2 C) 3 D) 4 E) 5 2-29. How many grams of glucose should be weighed out to make 1 liter of a rehydration solution that contains 75 mmol of...
Making Solutions Practice Problems: I. How would you prepare 100 ml of a 30% (w/v) solution...
Making Solutions Practice Problems: I. How would you prepare 100 ml of a 30% (w/v) solution of polyethylene glycol (PEG)? 2. How would you prepare 50 ml of a 9 % (w /v ) solution of NaCI? 3. How would you prepare 200 ml of 70 % ( v /v ) solution of ethanol from a stock of 95% ethanol? How would you prepare 200 ml of 0.3 M NaCl? (NaCl MW 58.44) 4. 5. How are 50 ml of...
Electrolytes. Concentration and Dilution of Solutions Date PRE-LAB ASSIGNMENT: 1. For each of the following, identify...
Electrolytes. Concentration and Dilution of Solutions Date PRE-LAB ASSIGNMENT: 1. For each of the following, identify the solute, solvent, and solution solute solvent solution a) 10% by mass KNO3(aq) b) a glass of wine containing 12% by volume ethanol in an aqueous solution 2. In this experiment, you will use/calculate the concentration of solutions using a variety of concentration units. Refer back to chapter 9 in your textbook to find the definition or equation for each concentration unit. Write an...
2. Consider the following two solutions: Solution A has a volume of 1 litre which contains 0.35 moles of acetic acid an...
2. Consider the following two solutions: Solution A has a volume of 1 litre which contains 0.35 moles of acetic acid and 0.25 moles of sodium acetate. The Ka value for acetic acid 1.78 * 10". Solution B also has a volume of 1 litre and it contains 2.8 * 10* mol HCl and 2.84 * 10-4 mol of NaCl. a) Calculate the pH of each of the two solutions. b) What is the pH of each solution after thoroughly...
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...
37. Which of the following pairs does NOT exhibit a direct relationship? A pressure and volume D. all are direct B. pressure and temperatureC. volume and temperature 38. Determine what the pressu...
37. Which of the following pairs does NOT exhibit a direct relationship? A pressure and volume D. all are direct B. pressure and temperatureC. volume and temperature 38. Determine what the pressur is inside of a 15.0L container holding 3.5 moles of H gas at 298.15 . E. 5.7 atm D. 1.4 atm A. 4.8 atm C. 86 atm 8.110 atm 39. If volume and the amount of gas within a container remains constant, what will happen to the pressure...
37. Which of the following pairs does NOT exhibit a direct relationship? A pressure and volume...
37. Which of the following pairs does NOT exhibit a direct relationship? A pressure and volume D. all are direct C. volume and temperature B. pressure and temperature 38. Determine what the pressure is inside of a 15.01 container holding 3.5 moles of Ha gas at 298. 15 K. E.5.7 atm A. 4.8 atm D. 1.4 atm 8.110 atm C. 86 atm 39. If volume and the amount of gas within a container remains constant, what will happen to the...
Tesm Pre-Lab Study Questions I. In 1 In making pickles, the cucumber making pick les, a cucumber is placed in when it is left in the salt solution for some time. a concentrated salt solution. Explain what happens t wso6 osmotic act on hresh the 2. Why is it important that cell membranes are 3. What are the differences between solutions, colloids, and . Indicate the compartment (A or B) that will increase in volume for each of the following...
Home Alan Hama PRELABORATORY EXERCISE 15 15 Osmosi 1 Provide a matches each in e mbrane a involves the movement of water across a m Majority component of a solution Seven e Quantity of Soute in a m ount of solution d involves the movement of solute across a semipermeabile membrane • Minority component of a solution 2 Wilted lettuce may be revived by placing themes in a bowl of water. Name the process that accounts for this and explain...
7. Which of the following solutions is isotonic (no osmosis) with a 0.30 M NaNO, solution? {hint - Find the osmosis molarity or "osmolarity" = (# ions)M} a) 0.10 M CaCl2 b) 0.30 M glucose c) 0.60 M NaCl d) 0.15 M AICI; e) 0.75 M KCI (n-1 for glucose) 8. If a solution of 0.20 M Mg(NO3)2 is separated from a 0.25 M KCl solution by a membrane that is permeable to water, osmosis will occur. Describe the osmotic...
2-27. What volume of a 6.0%(m/V) solution of ethanol contains 30 g of ethanol A) 6,0 mL B) 10.ml C) 50 mL D) 5.0 mL E) 30.ml 7 2-28. How many 1:10 serial dilutions are needed to prepare a pH 4 solution from 0.1 M hydrochloric acid A) 1 B) 2 C) 3 D) 4 E) 5 2-29. How many grams of glucose should be weighed out to make 1 liter of a rehydration solution that contains 75 mmol of...
Making Solutions Practice Problems: I. How would you prepare 100 ml of a 30% (w/v) solution of polyethylene glycol (PEG)? 2. How would you prepare 50 ml of a 9 % (w /v ) solution of NaCI? 3. How would you prepare 200 ml of 70 % ( v /v ) solution of ethanol from a stock of 95% ethanol? How would you prepare 200 ml of 0.3 M NaCl? (NaCl MW 58.44) 4. 5. How are 50 ml of...
Electrolytes. Concentration and Dilution of Solutions Date PRE-LAB ASSIGNMENT: 1. For each of the following, identify the solute, solvent, and solution solute solvent solution a) 10% by mass KNO3(aq) b) a glass of wine containing 12% by volume ethanol in an aqueous solution 2. In this experiment, you will use/calculate the concentration of solutions using a variety of concentration units. Refer back to chapter 9 in your textbook to find the definition or equation for each concentration unit. Write an...
2. Consider the following two solutions: Solution A has a volume of 1 litre which contains 0.35 moles of acetic acid and 0.25 moles of sodium acetate. The Ka value for acetic acid 1.78 * 10". Solution B also has a volume of 1 litre and it contains 2.8 * 10* mol HCl and 2.84 * 10-4 mol of NaCl. a) Calculate the pH of each of the two solutions. b) What is the pH of each solution after thoroughly...
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...
37. Which of the following pairs does NOT exhibit a direct relationship? A pressure and volume D. all are direct B. pressure and temperatureC. volume and temperature 38. Determine what the pressur is inside of a 15.0L container holding 3.5 moles of H gas at 298.15 . E. 5.7 atm D. 1.4 atm A. 4.8 atm C. 86 atm 8.110 atm 39. If volume and the amount of gas within a container remains constant, what will happen to the pressure...
37. Which of the following pairs does NOT exhibit a direct relationship? A pressure and volume D. all are direct C. volume and temperature B. pressure and temperature 38. Determine what the pressure is inside of a 15.01 container holding 3.5 moles of Ha gas at 298. 15 K. E.5.7 atm A. 4.8 atm D. 1.4 atm 8.110 atm C. 86 atm 39. If volume and the amount of gas within a container remains constant, what will happen to the...
Most questions answered within 3 hours.
-
Let T(1) = 2, T(n) = 4T(n/2) + 2n use subsition to solve this
recurrence problem.
asked 2 minutes ago -
Your grandfather invested $1,000 in a stock 37 years ago.
Currently the value of his account...
asked 25 seconds ago -
1.) In Faraday’s electrolysis experiment, he used approximately
96,500 C of charge. A) How many moles...
asked 3 minutes ago -
this situation is about a dvd disk 8.0cm in diameter that is
initially at rest. The...
asked 4 minutes ago -
What is the relationship, if any, between the pH (9.27) at the half
equivalence point and...
asked 19 minutes ago -
1. Suppose the probability that a library patron checks out a
science fiction book is 0.08....
asked 24 minutes ago -
A) A solution contains 1.49×10-2 M
potassium phosphate and
6.81×10-3 M potassium
bromide.
Solid silver acetate...
asked 39 minutes ago -
Mrs. A has saved $1,200,000 and is about to retire. If she can
earn 3.75% annually...
asked 40 minutes ago -
Are soft drink preferences regional? In an effort to find out, a
market researcher surveyed 150...
asked 47 minutes ago -
Using the textbook, Topic Materials, and your own research,
write a 100-250 word response to each...
asked 58 minutes ago -
What mass of precipitate do you expect when mixing 125 mL of a
solution containing 4.88...
asked 58 minutes ago -
Novak Corporation sells computers under a 2-year warranty
contract that requires the corporation to replace defective...
asked 1 hour ago