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July 22, 2014

Search: osmotic pressure chemistry

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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 low molar mass?
February 14, 2009 by Anonymous

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 NaCl b. 0.1M KNO3 c...
April 2, 2011 by allison

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 liter.
February 14, 2009 by GK

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
November 10, 2010 by shanice

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 osmotic pressure of ...
February 16, 2011 by Chris

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 lowest solvent vapor ...
September 8, 2010 by Megan

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?
November 22, 2010 by Jose Reyes

Calculate Osmotic Pressure
69.7 grams of a solute with a molecular mass of 2790 grams are dissolved in enough water to make 1.00 dm3 of solution at 20 degrees C. What is the osmotic pressure of the soluton?
December 7, 2010 by Jose Reyes

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 and non ionic. Which ...
February 25, 2009 by Anonymous

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
February 19, 2010 by donna

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.) Assuming that ...
October 12, 2006 by Amy

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 until it equals the ...
February 26, 2007 by Rob

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 energy.
September 17, 2009 by Jim_R

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.) Assuming that ...
October 14, 2006 by Lan

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 expression" I converted torr...
March 17, 2010 by Kiki

Chemistry
Which solution has the higher osmotic pressure, 2 M NaCl or 2 M CaCl2?
July 27, 2010 by Joe

chemistry
Calculate the osmotic pressure of a 6.0 10-2 M solution of NaCl at 20C (293 K).
October 29, 2011 by Chemistry Chick

Chemistry
Calculate the osmotic pressure at 22 C of a 0.25 M solution of a) dextrose, b) magnesium chloride.
May 24, 2013 by Mike

Chemistry
What is the osmotic pressure formed by dissolving 50.8 mg of aspirin (C9H8O4) in 0.200 L of water at 18C?
January 22, 2013 by Hannah

Chemistry
A solution that has an osmotic pressure greater than that of red blood cells is called?
November 29, 2010 by Ann

chemistry
is the osmotic pressure formed by dissolving 50.9 mg of aspirin (C9H8O4) in 0.450 L of water at 24C
February 6, 2013 by Anonymous

Chemistry
What is the osmotic pressure in atmospheres of a 15% sucrose solution at a temperature of 25 degrees celcius
December 4, 2013 by Ruffles

Chemistry
What is the osmotic pressure in atmospheres of a 15%(m/v) sucrose solution at a temperature of 25 degrees celcius
December 4, 2013 by Ruffles

Chemistry
What is the osmotic pressure in atmospheres of 40.00% ( m/v) NaCl solution at a temperature of 0.0 degrees celcius
December 4, 2013 by Ruffles

chemistry
Determine the osmotic pressure (in psi) , at 75.0o F, of an aqueous solution that is 2.60 % sodium sulfate by mass
February 9, 2010 by G-Unit 32

chemistry
Arrange the following three water solutions according to decreasing osmotic pressure
February 10, 2012 by Anonymous

chemistry
you add 13.7g HCL to water and make 500 mL solution. what will the solutions osmotic pressure be?
April 27, 2012 by Nicolette

chemistry
how do I set up a problem for the solubility product(Ksp) of a salt given the osmotic pressure at 781atm?
November 11, 2009 by Christie

Chemistry
The osmotic pressure of a liquid at 320 K is 145 kPa. Calculate the freezing point of the solution.
November 29, 2011 by David

chemistry
Which solution would increase the osmotic pressure of water the most? a) KBr b) NaCl c) MgCl2 d) glucose
May 19, 2008 by Donna

Chemistry
The osmotic pressure (T=25C) of a saturated solution of CaC03 is 0.0179 atm. Determine the solubility product of the salt
July 5, 2012 by Mousa

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?
June 8, 2014 by Teagan

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.
January 16, 2008 by Anonymous

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
February 2, 2011 by briana

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
January 13, 2013 by Janet

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.
May 20, 2013 by kitor

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 dont get it.Thank you for your time
April 20, 2011 by rally

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 ...
April 2, 2012 by Anonymous

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 teh solution, the pressure potential is equal to 0 making teh water potential equal to the osmotic potential. If the equilibrium ...
October 2, 2008 by Simone

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 used the osmotice ...
October 15, 2010 by lulu78

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
September 12, 2007 by Amanda

chemistry
What is the osmotic pressure of a solution containing 25.7 g of sugar (C12H22O11) in one liter of solution at 20C?
April 16, 2010 by Chae

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.
January 25, 2010 by M

physical chemistry
0.1M weak acid at 27 degree celcius has osmotic pressure of 2.5 atm. find % dissociation of acid?
July 2, 2012 by shruti

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?
October 15, 2010 by lizz

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?
December 10, 2012 by Shelly

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
December 4, 2013 by Ruffles

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?
February 4, 2011 by emerald

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.
February 25, 2011 by georgia

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?
April 22, 2013 by Ali

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
December 4, 2013 by Ruffles

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 osmosis stops? Assuming ...
February 18, 2012 by Melody

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 osmosis stops? Mc=? ...
February 19, 2012 by Ariel

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 osmosis stops? Mc=? ...
February 19, 2012 by Sarah

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 osmosis stops? Mc=? ...
February 19, 2012 by Janice

chemistry
i need some help with this i dont 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 25C. Based on these data, what is the molar mass (MW) of insulin (g/mol)? (Which is the best answer ...
May 1, 2007 by Anonymous

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
February 8, 2010 by heather

Chemistry
What is the density of an aqueous solution of potassiu nitrate that has normal boiling point of 103 celsius and an osmotic pressure of 122 atm at 25 celsius?
February 20, 2010 by Anmol

Chemistry
a solution of 4.65 of a carbohydrate in 100.0g of water has a density of 1.016g/mL and an osmotic pressure of 3.18 atm at 20.0 degrees celcius. calculate the molar mass of the carbohydrate.
February 15, 2011 by Amy

chemistry
What is the osmotic pressure, expressed in the unit mmH2O, of a solution containing 125 ug of vitamin B12 (C63H88CoN14O14P) in 2.50 mL H2O at 25 degrees C? Answer: 9.33 mmH2O
February 25, 2013 by JJ

chemistry
find 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 be7.60 torr ant 25 celcious Degree.
April 2, 2012 by Anonymous

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 vapor pressure of ...
October 12, 2006 by Jane

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?
October 13, 2010 by lulu

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?
October 13, 2010 by lulu

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?
October 13, 2010 by lulu

Chemistry
A 271-mL of a sugar solution containing 1.79g of the sugar has an osmotic pressure of 30.1 mmHg at 35.1 degrees C. What is the molar maas of the sugar?
October 18, 2010 by John

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.
February 13, 2013 by Jonah

chemistry
A solution is prepared by dissolving 49.0 g of glucose (C6H12O6) in 225.0 g of water. The density of the resulting solution is 1.23 g/mL. Determine the osmotic pressure (in Pa) of this solution at 25.0 oC.
February 9, 2010 by G-Unit 32

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 typical unit exerts a ...
April 28, 2010 by Stephanie

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 equals the applied ...
February 19, 2012 by Ariel

Chemistry
What mass of sucrose (C12H22O11) would you combine with 5.28 102 g of water to make a solution with an osmotic pressure of 9.14 atm at 298 K? (Assume a density of 1.0 g/mL for the solution.) I came up with 67.5 but no luck...help please!!
July 3, 2012 by Anonymous

chemistry
A solution contains 0.02755 g of a protein in 25.0 mL of solution. The osmotic pressure is 3.22 torr at 298 K. What is the molecular weight of the protein?
February 17, 2013 by m

CHEMISTRY
Which of the following solutions do they have the maximum osmotic pressure : 1) 0.1 m ( molal conc.) glucose 2) 0.1 m sucrose 3) 0.5 m glucose 4) 0.2 m sucrose and why ?
July 14, 2014 by MAD

Chemistry
An aqueous solution containing 10.50 g of a compound in 100.0 ml of solution has an osmotic pressure of 0.0187 atm. at 25C. What is the molecular weight of the compound?
March 31, 2013 by Sean

chemistry
osmotic pressure of a solution containing 7g of protein in 100ml of solution is 20mmhg at37celsius calculate molecular mass of the protein
January 29, 2014 by himanshu

Chemistry
A solution containing 26.40 mg of an unknown protein per 22.5 mL solution was found to have an osmotic pressure of 3.95 torr at 21 C. What is the molar mass of the protein?
September 17, 2009 by RE

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. What is the molar mass of the protein?
January 25, 2010 by M

chemistry
A dilute aqueous solution of CaCl2 contains 0.159 grams of solute per liter of solution. It is fully dissociated. What is the osmotic pressure of the solution against a membrane at 20.0 C?
September 29, 2011 by sarah

chemistry
why is the osmotic pressure of 10 mole solution sodium chloride larger than that of sodium nitrate solution
May 24, 2010 by taher

chemistry
A 1.10- sample contains only glucose and sucrose . When the sample is dissolved in water to a total solution volume of 25.0 , the osmotic pressure of the solution is 3.78 at 298 .
January 24, 2010 by bf

Chemistry
A protein has a molecular weight of 98,300 grams/ mole. What will be the osmotic pressure if 0.128 grams of this protein I dissolved in 15.0 ml of water at 20 degrees calcias?
December 17, 2012 by Nad

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, but I'm having ...
March 24, 2007 by Jessica

physiology
what happens to the osmotic pressure with increasing solute concentration
September 19, 2011 by darlene

physical chemistry
The freezing point of a sample of abnormal blood was found to be -0.402 degree celsius. Estimate its osmotic pressure at 37 degree celsius. Kf(water)=1.86
January 24, 2011 by yogita n sarki

General Chemistry
how many grams of a protein weighing 4500 grams/ mol must be present in 100 ml of water solution to a given osmotic pressure of 18 mm hg at 25 degrees celcius...( use formula of pie = Mrt
December 11, 2010 by Sarah

chemistry
If 6.38 g of a polyethylene glycol is dissolved in 7550 ml of water at 300 oK, the solution has an osmotic pressure of 0.171 torr. Calculate the molar mass (g/mol) of the polyethylene glycol.
January 28, 2010 by eng

Chemistry
Intravenous medications are often administered in 7% glucose (C6H12O6). what is the osmotic pressure of such solutions at 44 degrees C (body temperture)? the density of the solution is 1 g/mol. I would convert the percent concentration to Molarity. (Broken Link Removed)
February 11, 2007 by Camden

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 K. (Don′t ...
December 10, 2012 by Anonymous

chem
How does the osmotic pressure of an aqueous solution change as evaporation occurs?
April 25, 2008 by Ginger

Human physiology
find effective osmotic pressure of normal saline.
September 25, 2012 by raj

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 thru would help me. Thanks
January 15, 2008 by Joe

chemistry
What mass of sucrose should be combined with 491 g of water to make a solution with an osmotic pressure of 8.70 atm at 270 K? (Assume the density of the solution to be equal to the density of the solvent.)
August 5, 2010 by ashley

Chemistry
Calculate the osmotic pressure of a 6.0 10-2 M solution of NaCl at 20C (293 K). Okay when I set up problem MRT....I get something totally different from the answer 2.9 atm. Could u please show me your set up to get to 2.9 atm? Thanks a billion!!
October 29, 2011 by Chemistry Chick

chemistry
Phenylalanyl aspartate, Nutrasweet, is an artificial sweetener used in many diet drinks. If a solution prepared by dissolving 6.068 mg of Nutrasweet in 125 milliliters of water exhibited an osmotic pressure at 25C of 3.23 mm Hg, what is the molar mass of Nutrasweet?
March 11, 2012 by Laffy Taffy

chemistry
calculate the osmotic pressure of a solution obtained by mixing 100ml of 0.25M solution of urea and 100ml of 0.1m solution of cane sugar at 293k
June 6, 2013 by sumit

chemistry
Cellobiose(a nonvolative, nonelectrolyte) is a sugar obtained by degratation of cellulose. If 200.mL of an aqueous solution containing 1.500g of cellobiose at 25C give rise to an osmotic pressure of 407.2mmHg. What is the molecular mass of Cellobiose?
September 11, 2012 by Anonymous

chemistry
The osmotic pressure of a solution containing 5.00 mg of an unknown protein per 10 mL of solution was 2.73 torr at 25 C. Find the molar mass of the unknown protein.
September 10, 2011 by lily

Chemistry
An aqueous solution of a compound with a very high molar mass was prepared in a concentration of 82.7 gL-1 at 25 C. Its osmotic pressure was 0.540 102 Pa. Calculate the molar mass of the compound. Cheers
April 28, 2010 by David

chemistry
1.00 of an aqueous solution contains 1.52g of a compound used in antifreeze. If the osmotic pressure of this solution at 20.0 degree C is 448 torr, calculate the molar mass of the antifreeze compound
April 28, 2014 by courtney

Chemistry
Assuming that sea water is a 3.5 wt % solution of NaCl in water, calculate its osmotic pressure at 20C. The density of a 3.5% NaCl solution at 20C is 1.023 g/mL.
April 13, 2010 by Bob

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