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
  72. PLEASE HELP! PHYSICAL CHEM

    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