osmotic pressure chemistry

10,993 results
1. osmotic pressure chemistry.

I have a question about osmotic pressure. I took a test in chemistry and this was a multiple choice question. It said given the molar mass of each solution, which one had the high osmotic pressure. So a high osmotic pressure, means a high molar mass or a

asked by Anonymous on February 14, 2009
2. St Teresas College

Subject:Chemistry What is the difference between seawater and pure water in terms of osmotic pressure and vapour pressure?

asked by Sulu on September 26, 2015
3. Chemistry

I am having trouble figuring out the calculations for osmotic pressure. This is what I need to do. Indicate whether the osmotic pressure of a 0.1M NaNO3 solution will be less than , the same as , or greater than that each of the following solutions a. 0.1M

asked by allison on April 2, 2011
4. College Physiology

At the venular end of the capillary, the hydrostatic pressure is? A) higher than the osmotic pressrue B) lower than the osmotic pressure C) equal to the osmotic pressure D) higher than the hydrostatic pressure at the arteriolar end of the capillary

asked by shanice on November 10, 2010
5. chemistry

A sample containing 0.0500mol of Fe2(SO4)3 is dissolved in enough water to make 1.00L of solution. This solution contains hydrated SO4 2- and Fe(H2O)6 3+ ions. The latter behaves as an acid: Fe(H2O)6 3+ --> Fe(H2O)5OH 2+ + H+ a) Calculate the expected

asked by Chris on February 16, 2011
6. Biology

Uable to find correct answer: In general it is expected_____________ A) hydrostatic pressure will remain constant throughout the capillary bed B) osmotic pressure will be higher in the arteriole end of the capillary bed compared to the venous end C)

asked by Mary on June 11, 2016
7. chemistry

Suppose you are given a list of solutions (all with nonvolatile solutes) and their concentrations. You pick out the one with the lowest freezing point. It should also have (pick all that apply): the lowest boiling point the highest osmotic pressure the

asked by Megan on September 8, 2010
8. Chemistry

Calculate the osmotic pressure of this solution. 18..6 grams of solute with molecular mass of 8940 grams are dissolved in enough water to make 1.00 dm3 of solution at 25 celsius. What is the osmotic pressure of the solution?

asked by Jose Reyes on November 22, 2010
9. Chem

Osmotic Pressure.. If the height of the column is 6 cm what is the osmotic pressure of the sugar solution in g/cm2 Assume the density of the solution is 1.01 g/ml.. Beaker of water with beaker of sugar solutution with semi permeable membrane

asked by donna on February 19, 2010
10. biology

hi i have a few questions 1)osmotic pressure Basically, i got that its the pressure opposing osmois. can you explain it to me ? 2)hydroltic pressure Im thinking that its the pressure that builds up due to a higher concentration. Must be like potiential

asked by Jim_R on September 18, 2009
11. APChem

"The osmotic pressure of a saturated solution of strontium sulfate at 25C is 21 torr. What is the solubility product of this salt at 25C (Hint: calculate molarity from the colligative properties eqn of osmotic pressure and use it in the equilibrium

asked by Kiki on March 18, 2010
12. Chemistry Help!!!

How will the osmotic preassure of an aqueous solution change as evaporation occurs? A.The osmotic preassure will increase. B.The osmotic preassure will not change. C.The osmotic preassure will decrease. D.The osmotic preassure will increase or decrease

asked by Rob on February 27, 2007
13. chemistry

Two solutions are prepared. In Solution A, 5.0 g of a substance of molecular weight 50 is dissolved in 100 mL of pure water. In Solution B, 5.0 g of a substance with molecular weight of 75 is dissolved in 100 mL of pure water. The solute is non volatile

asked by Anonymous on February 26, 2009
14. osmotic pressure chemistry.

For a given mass of solute per liter of solution, the larger to formula mass, the lower the osmotic pressure. Osmotic pressure depends on molar concentration. A large molar mass would tend to produce a lower concentration in terms of moles of particles per

asked by GK on February 15, 2009
15. chemistry

How do you make a venn diagram of the 6 branches of chemistry? (Inorganic chemistry, organic chemistry, biochemistry, nuclear chemistry, physical chemistry, and analytical chemistry) like where would they go in the 3 circles

asked by jake on August 27, 2012
16. anatomy&physiology

What directions glomerular hydrostatic pressure,capsule hydrostatic pressure and blood colloid osmotic pressure will cause fluid to move.I've tried to look on internet differen imformations but just don't get it.Thank you for your time

asked by rally on April 20, 2011
17. St Teresas College

What would be the difference between seawater and pure water in terms of osmotic pressure and vapour pressure?

asked by Anonymous on September 26, 2015
18. Physical Chemistry HELP!!!!!

A solution of the sugar mannitol ( molar mass 182.2 g/mol ) is prepared by adding 54.66 g of mannitol to 1.000 kg of water. The vapor pressure of pure liquid water is 17.54 torr at 20o C. Mannitol is nonvolatile and does not ionize in aqueous solution. a.)

asked by Lan on October 14, 2006
19. vapor and osmotic pressure

A solution of the sugar mannitol ( molar mass 182.2 g/mol ) is prepared by adding 54.66 g of mannitol to 1.000 kg of water. The vapor pressure of pure liquid water is 17.54 torr at 20o C. Mannitol is nonvolatile and does not ionize in aqueous solution. a.)

asked by Amy on October 12, 2006
20. Anatomy

Is osmotic pressure the hydrostatic pressure on the side of a semiperable membrane containing the hypertonic solution which opposes the movement of water particles and can therefore stop osmosis? T OR F

asked by Amanda on September 12, 2007
21. AP Bio Lab

the water potential of a solution is equal to the osmotic potential plus the pressure potential. Since there is no differential pressure acting on the solution, the pressure potential is equal to 0 making the water potential equal to the osmotic potential.

asked by Simone on October 3, 2008
22. Chemistry

What is the osmotic pressure of blood plasma at 37°c

asked by Abhishek on September 8, 2016
23. physiology

what happens to the osmotic pressure with increasing solute concentration

asked by darlene on September 19, 2011
24. chemistry

Arrange the following three water solutions according to decreasing osmotic pressure

asked by Anonymous on February 11, 2012
25. Chemistry

Which solution has the higher osmotic pressure, 2 M NaCl or 2 M CaCl2?

asked by Joe on July 28, 2010
26. chemistry

Calculate the osmotic pressure of a 6.0 × 10-2 M solution of NaCl at 20°C (293 K).

asked by Chemistry Chick on October 29, 2011
27. Human physiology

find effective osmotic pressure of normal saline.

asked by raj on September 26, 2012
28. college chemistry

A) In some regions of the southwest United States, the water is very hard. For example, in Las Cruces, New Mexico, the tap water contains about 560 ug of dissolved solids per milliliter. Reverse osmosis units are marketed in this area of soften water. A

asked by Stephanie on April 28, 2010
29. Chemistry

Calculate the osmotic pressure at 22 °C of a 0.25 M solution of a) dextrose, b) magnesium chloride.

asked by Mike on May 25, 2013
30. science

Calculate the osmotic pressure 5% glucose Sol. At 298 kelvin?

asked by Rinku on May 29, 2016
31. chem

How does the osmotic pressure of an aqueous solution change as evaporation occurs?

asked by Ginger on April 26, 2008
32. Chemistry

A solution that has an osmotic pressure greater than that of red blood cells is called?

asked by Ann on November 29, 2010
33. Chemistry

What is the osmotic pressure in atmospheres of 40.00% ( m/v) NaCl solution at a temperature of 0.0 degrees celcius

asked by Ruffles on December 5, 2013
34. Chemistry

What is the osmotic pressure in atmospheres of a 15%(m/v) sucrose solution at a temperature of 25 degrees celcius

asked by Ruffles on December 5, 2013
35. Chemistry

what is the osmotic pressure produced by a 1.20M glucose (CH12O6) solution at 25 degree

asked by Elsie on May 11, 2016
36. chemistry

is the osmotic pressure formed by dissolving 50.9 mg of aspirin (C9H8O4) in 0.450 L of water at 24°C

asked by Anonymous on February 6, 2013
37. Chemistry

What is the osmotic pressure formed by dissolving 50.8 mg of aspirin (C9H8O4) in 0.200 L of water at 18°C?

asked by Hannah on January 22, 2013
38. Chemistry

What is the osmotic pressure in atmospheres of a 15% sucrose solution at a temperature of 25 degrees celcius

asked by Ruffles on December 5, 2013
39. chemistry

THE FREEZING POINT OF BLOOD SERUM IS ABOUT 0.56 DEGREE CELSIUS WHAT IS ITS OSMOTIC PRESSURE

asked by JOVY on November 19, 2014
40. chemistry

What pressure would have to be applied to steam at 325°C to condense the steam to liquid water (ÄH vap = 40.7 kJ/mol)? Responses Dr bob please! Chemistry - GK, Friday, November 28, 2008 at 11:47pm Use the Clausius-Clapeyron Equation to calculate the

asked by Rachelle on December 1, 2008
41. chemistry

Which solution would increase the osmotic pressure of water the most? a) KBr b) NaCl c) MgCl2 d) glucose

asked by Donna on May 19, 2008
42. chemistry

you add 13.7g HCL to water and make 500 mL solution. what will the solutions osmotic pressure be?

asked by Nicolette on April 27, 2012
43. chemistry

how do I set up a problem for the solubility product(Ksp) of a salt given the osmotic pressure at 781atm?

asked by Christie on November 11, 2009
44. Science - chemistry

The osmotic pressure of a solution of MgCl2 is 5.43 atm at 25 oC. How much of the salt is dissolved in 250.0 ml of water?

asked by Teagan on June 8, 2014
45. Chemistry

what is the osmotic pressure produced by a 1.20M glucose (C6H12O6) solution at 25 degree celsuis?

asked by Elsie on May 11, 2016
46. Chemistry

Which of the following solutions would have the highest osmotic pressure? 0.15 M KCl 0.2 M C6H12O6 0.2 M C12H22O11 0.2 M CH3COOH 0.15 M CaCl2

asked by Janet on January 13, 2013
47. Chemistry

What is the osmotic pressure of a solution made from dissolving 60.0g of glucose, C6H12O6, in 450 mL of water at 10.0∘C?

asked by Ashleigh on September 3, 2014
48. chemistry

Determine the osmotic pressure (in psi) , at 75.0o F, of an aqueous solution that is 2.60 % sodium sulfate by mass

asked by G-Unit 32 on February 10, 2010
49. Chemistry

What would the osmotic pressure be for an aqueous solution that contained the following, .4 M NaCl, .3 M glucose and .2 M CaCl2? Assume temp is 25 C.

asked by Anonymous on January 16, 2008
50. Chemistry

The osmotic pressure of a liquid at 320 K is 145 kPa. Calculate the freezing point of the solution.

asked by David on November 29, 2011
51. Chemistry

Hi you guys please help me with my chemistry homework, i need to find all these items and take them to my class in a ziploc bag *a hydrocarbon with a molecular mass greater than 100g/mol *2 porpanol *an aromatic compound(not the common usage of "aromatic"

asked by Desperate on February 4, 2007
52. Chemistry

Calculate the freezing point depression and osmotic pressure at 25 degrees C of an aqueous solution of 1.0 g/L of a protein (mol wt= 90,000) if the density of the solution is 1.0 g/mL. I know how to calculate freezing point depression and osmotic pressure,

asked by Jessica on March 24, 2007
53. CHEMISTRY

Lysozmyne is an enzyme that breks bacterial cell walls. A solution containing 0.150g of this enzyme in 210ml of solution has an osmotic pressure of 0.217kPa at 25*C. What is the molar mass of Lysozmyne? I cant find the chemical formula anywhere. I have

asked by lulu78 on October 16, 2010
54. Chemistry

The osmotic pressure (T=25°C) of a saturated solution of CaC03 is 0.0179 atm. Determine the solubility product of the salt

asked by Mousa on July 5, 2012
55. science

calculate the osmotic pressure at 18.5 degree celcuis of a suspension containing 30g/L of solid particles. each particle weighs 10^-9g.

asked by johnson on August 5, 2015
56. chemistry

i need some help with this i don't even know where to begin A solution of 62.4 g of insulin in enough water to make 1.000 L of solution has an osmotic pressure of 0.305 atm at 25°C. Based on these data, what is the molar mass (MW) of insulin (g/mol)?

asked by Anonymous on May 1, 2007
57. BIOLOGY

how would i find the osmotic pressure of something from "0.9% NaCl solution and MW is 58 grams" .. ? is there a formula or some sort i am missing? if so can you tell me what that is cause i have several problems like these that i don't know how to solve

asked by Amber on April 8, 2014
58. chemistry

what is the osmotic pressure at 20 C of a solution made by dissolving 0.69 grams of sucrose C12 H22 O11 in 100 mL of water

asked by briana on February 3, 2011
59. Biology

how would i find the osmotic pressure of something from "0.9% NaCl solution and MW is 58 grams" .. ? is there a formula or some sort i am missing? if so can you tell me what that is cause i have several problems like these that i don't know how to solve

asked by Amber on April 8, 2014
60. chemistry

When 3.54 g of a nonelectrolyte solute is dissolved in 675 mL of water at 24 °C, the resulting solution exerts an osmotic pressure of 913 torr.

asked by kitor on May 20, 2013
61. chemistry

the average molar mass of polyethylene when 4.40 g of the polymer is dissolved in benzene to produce 200.0 mL of solution and the osmotic pressure is found to be ...

asked by Anonymous on April 2, 2012
62. Chemistry

In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 47.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 °C when reverse

asked by Ariel on February 19, 2012
63. Chem

In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 41.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 °C when reverse

asked by Andrew on February 22, 2012
64. chemistry

In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 47.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 °C when reverse

asked by Janice on February 19, 2012
65. Chemistry

In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 59.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 °C when reverse

asked by Melody on February 18, 2012
66. chemistry

In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 47.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 °C when reverse

asked by Sarah on February 19, 2012
67. chemistry hw

SOMEONE PLEASE HELP AND CONFIRM THE RIGHT ANSWER FOR ME...I HAVE ONE MORE ATTEMPT TO THIS PROBLEM AND I NEED HELP!!!!! PLEASE!!!!!!!!!!!!!!!!!!!! THANKS! In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution

asked by Ariel on February 19, 2012
68. Chem

if the pressure was increased in this reaction : 2NO(g)+ O2 =====> 2NO2

asked by Hello Kit on March 27, 2007
69. chem

What mass of sucrose should be combined with 524 g of water to make a solution with an osmotic pressure of 8.50 atm at 270 K? I keep working this and end up with 68.81g but it is not right, any help?

asked by moe on September 13, 2010
70. Chemistry

What is the osmotic pressure of .100 M solution of aluminum chloride at 27 deg C? I used the formula: pi=(i)(M)(R)(T) wasn't sure what i was but for M put down 0.100M, R=0.08206 and T=300K Answer is 9.85, but not sure how to get that.

asked by Jonah on February 13, 2013
71. Physical Chemistry

The measured osmotic pressure of seawater is 25 atm at 273K. a.) What is the activity of water in seawater at 273 K? Take the partial molar volume of water in seawater to be 0.018 M-1. b.) The vapor pressure of pure water at 273 K is 4.6 torr. What is the

asked by Jane on October 12, 2006

The measured osmotic pressure of seawater is 25 atm at 273K. a.) What is the activity of water in seawater at 273 K? Take the partial molar volume of water in seawater to be 0.018 M-1. b.) The vapor pressure of pure water at 273 K is 4.6 torr. What is the

asked by Amy on October 14, 2006
73. college chem

A 1.10g- sample contains only glucose and sucrose . When the sample is dissolved in water to a total solution volume of 25.0ML , the osmotic pressure of the solution is 3.78atm at 298K a.What is the percent by mass of glucose in the sample? b.What is the

asked by mm on January 26, 2010
74. Chemistry

If the same solute is dissolved in two different solvents to the same concentration and the same temperature, the osmotic pressure ____ My answer & reason: solution A has a smaller molecular weight and therefore, a larger Molarity and higher osmotic

asked by Anonymous on February 25, 2009
75. CHEM

In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 47.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 °C when reverse

asked by JSJFJF on February 19, 2012
76. Chemistry

A reverse osmosis unit is used to obtain drinkable water from a source that contains 0.530 g NaCl per liter. What is the minimum pressure (in torr) that must be applied across the semipermeable membrane to obtain water? Assume room temperature or about 298

asked by Anonymous on December 11, 2012
77. chem

A 1L flask is filled with 1.25 g of argon at 25 degrees celcium. A sample of ethane vapor is added to the same flask until the total pressure is 1.45 atm. What is the partial pressure of argon in the flask? Chemistry - DrBob222, Tuesday, October 5, 2010 at

asked by kris on October 24, 2013
78. chemistry

A solution containing 26.05 mg of an unknown protein per 23.5 mL solution was found to have an osmotic pressure of 3.75 torr at 44 C.

asked by M on January 25, 2010
79. biochemistry

the freezing point of blood serum is about -0.56 deg C. What is the osmotic pressure at 37 deg C?

asked by Caselyn on June 21, 2013
80. physical chemistry

0.1M weak acid at 27 degree celcius has osmotic pressure of 2.5 atm. find % dissociation of acid?

asked by shruti on July 2, 2012
81. Chemistry

6.00 g of hemoglobin was dissolved in 250.0 mL of solution. The resulting osmotic pressure was 6.80 mmHg at 23.0C. what is the molar mass of hemoglobin?

asked by libby on June 10, 2018
82. chemistry

A 100.0 ml aqeuous solution that contains 0.50 g of hemoglobin has an osmotic pressure of 0.00178 atm. What is the molar mass of hemoglobin?

asked by victoria on February 16, 2015
83. chemistry

10.0 mg of a certain protein were dissolved in water to make a solution of 3.50 mL at 28.0o C. If the osmotic pressure is 1.30 torr, what is the molar mass of the protein?

asked by lizz on October 16, 2010
84. chemistry

What is the osmotic pressure of a solution containing 25.7 g of sugar (C12H22O11) in one liter of solution at 20°C?

asked by Chae on April 16, 2010
85. science

1) At body temperature of 36.5 ° C the osmotic pressure of the blood is of 7.80 atm. Calculate the mass of glucose (C6H12O6) that must be added to one liter of a solution containing 5 g / L of NaCl to be able to inject directly into a vein.

asked by michael on March 14, 2017
86. Chemistry

a .72g sample of polyvinyl chloride is dissolved in 250.0ml of a suitable solvent at 25C. the solution has an osmotic pressure of 1.67mmHg.What is the molar mass of the PVC?

asked by emerald on February 5, 2011
87. CHM

Calculate the molecular weight of a small protein if a 0.32 g sample dissolved in 161 mL of H2O has an osmotic pressure of 9.0 mmHg at 25 degree celcius. (R=0.0821 L X atm/K X mol)

asked by Robby on January 13, 2013
88. University

Chemistry The molar heat capacity of butane under constant pressure Cp=19.4 + 0.233 T J.mol' '.K' . Calculate the quantity of heat needed to increase the temperature from 27"C to 127 ° Cu under1 atm pressure.

asked by Zahra on November 22, 2015
89. chemistry

What is the osmotic pressure in torr of a 0.0155 M glucose solution at body temperature ( 35.7 °C)? What are the boiling and freezing points for the same solution?

asked by Ali on April 22, 2013
90. Chemistry

If the osmotic pressure of urea (CH4N20) in water is measured at 0.0259 atm at 25 degress C what is the molartiy of the urea solution?

asked by Shelly on December 10, 2012
91. Chemistry

What is the osmotic pressure of a 50% sucrose solution at a temperature of 37 degrees celcius with a molar mass of sucrose of 342.30 grams

asked by Ruffles on December 5, 2013
92. Chemistry

What is the osmotic pressure(in torr)of a 0.0015 M NaCl at 25 degrees celsius? (R= 62.4 L*torr/mol*K) Please show me how to set up the equation.

asked by georgia on February 25, 2011
93. Chem7

Calculate the osmotic pressure (in torr) of a solution containing 17.15 mg of hemoglobin (molar mass 6.5 x 104 g/mol) in 12.8 mL of solution at 25 degrees C.

asked by Ryan on May 3, 2011
94. Chemistry

What mass of the ionic substance KBr would result in the same osmotic pressure as 34.2 g of nonionic sucrose (C12H22O11)? A little step by step walk through would help me. Thanks

asked by Joe on January 16, 2008
95. Chemistry

What is the osmotic pressure in atmospheres of a 50% sucrose solution at a temperature of 37 degrees celcius with molar mass of 342.30grams of sucrose

asked by Ruffles on December 5, 2013
96. chemistry

calculate the freezing point and osmotic pressure at 25 degrees celcious of an aqueous solution containing 1.0 g/L of a protein (mm=9.0*10^4g/mol) if the density of the solution is 1.0 g/cm^3

asked by heather on February 9, 2010
97. science

When 4.56 g of a nonelectrolyte solute is dissolved in water to make 275 mL of solution at 22 °C, the solution exerts an osmotic pressure of 873 torr.

asked by eva on April 25, 2014
98. Physics

Continuously running exhaust hoods in a university chemistry building keep the inside air pressure slightly lower than outside. A student notices that a 175 N force is necessary to start opening a 1.2 m by 2.3 m door. The door is hinged on one of its 2.3 m

asked by Constance on December 4, 2012
99. CHEMISTRY

the osmotic pressure of blood at 37 degrees is 7.56atm. what mass of glucose should be dissolved per litre of solution for an intravenous injection to be isotonic with blood?

asked by lulu on October 14, 2010
100. CHEMISTRY

the osmotic pressure of blood at 37 degrees is 7.56atm. what mass of glucose should be dissolved per litre of solution for an intravenous injection to be isotonic with blood?

asked by lulu on October 14, 2010