osmotic pressure chemistry

10,993 results, page 49
  1. science

    10% of the atmosphere is located above the altitude where the pressure is a. 100 b. 900

    asked by Sally on July 8, 2013
  2. physics

    Describe what causes pressure in gasesin terms of the particles in the gas

    asked by tuche on November 25, 2018
  3. Chemistry

    For the reaction 2 N2O O2 + 2 N2 what happens to the equilibrium position if the pressure is increased

    asked by Monique on November 12, 2011
  4. Chemistry

    What is the boiling point of ethanol when the atmospheric pressure is 60kPa?

    asked by Gerald on April 15, 2012
  5. Chemistry

    the pressure in a 10.0 L cylinder is raised from 483 mm Hg to 762 mm Hg. What is the new volume?

    asked by Angel on April 3, 2013
  6. College Chemistry

    Does Vapor Pressure decrease as intermolecular forces increase???

    asked by James on April 30, 2010
  7. Chemistry ? help!

    How do I perform the following conversions of pressure units: 168 torr = What?

    asked by Lisa on May 5, 2008
  8. math

    In Purdue's Chemistry department, the chemists have found that in a water based solution containing 24 grams of certain undissolved chemicals, the rate of change of the amount of chemicals dissolved in the solution is proportional to the amount of the

    asked by Anonymous on February 6, 2018
  9. math

    In a class of 60 student,the number of student who passed biology is 6 more than the number of student who passed chemistry.Every student passed atleast one of the two subject and 85 student passed both subjects

    asked by Daniel on September 13, 2013
  10. Chemistry

    I am completely lost in chemistry. Everything the teacher says sounds like a different language to me and I am usually really good in the class. Can someone help me do this problem please? An element "E" is present as 10E (The 10 is like an exponent to the

    asked by Tammy on October 23, 2007
  11. Anatomy & Physiology

    How do the gas laws (Daltons, Boyles and Henrys)apply to the respiratory processes? I will be happy to critique your thinking on this. I know Dalton's Law is the law of partial pressures, Boyle's law is the law for a fixed mass of ideal gas at fixed

    asked by Aletha on March 21, 2007
  12. Engineering

    You have two balloons, one large (30 cm in diameter) and one small (15 cm in diameter) filled with helium. Both balloons are made of the same material (latex) and have the same unfilled material thickness (2 mm) and have a 3 cm diameter. You release both

    asked by bobby on August 22, 2012
  13. physics, I'm stuck

    In an aortic aneurysm, a bulge forms where the walls of the aorta are weakened. If blood flowing through the aorta (radius 1.0 cm) enters an aneurysm with a radius of 2.5 cm, how much on average is the blood pressure higher inside the aneurysm than the

    asked by trace on January 28, 2011
  14. chemistry

    A 100-watt light bulb radiates energy at a rate of 100 J/s. (The watt, a unit of power or energy over time, is defined as 1 J/s.) If all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second? okay so i do:

    asked by anon yo on October 7, 2016
  15. Chemistry

    Benzene has a vapor pressure of 100.0 Torr at 26°C. A nonvolatile, nonelectrolyte compound was added to 0.309 mol benzene at 26°C and the vapor pressure of the benzene in the solution decreased to 60.0 Torr. What amount (in moles) of solute molecules

    asked by Angelica on February 16, 2010
  16. College Chem 1

    a chemistry handbook lists the solubility of NaI as 184 per 100mL of H2O at 25 degrees Celcius. 1) How many moles of NaI can be dissolved in 100mL of H2O at 25 degrees Celcius? 2) What would be the molarity of a saturated aqueous solution of NaI prepared

    asked by Anonymous on November 27, 2012
  17. Thermal Physics, Kinetic Theory of Gases

    Oxygen (O2) has a molar mass of 32 g/mol. (e) Suppose an oxygen molecule traveling at this speed bounces back and forth between opposite sides of a cubical vessel 0.10 m on a side. Find the average force it exerts on one of the walls of the container.

    asked by Help!! on November 1, 2012
  18. Chemistry

    I was not the person who wrote that question last night? Chemistry - DrBob222, Wednesday, November 15, 2006 at 7:24pm Yes, it is possible in some cases. For example, CoCl2 is blue in the unhydrated form and pink in the hydrated form. As a kid, I used a

    asked by Dave on November 17, 2006
  19. Physics

    A large water tank has an inlet pipe and an outlet pipe. The inlet pipe has a diameter of 2.19 cm and is 2.13 m above the bottom of the tank. The outlet pipe has a diameter of 5.49 cm and is 4.85 m above the bottom of the tank. A volume of 0.359 m3 of

    asked by mican on April 19, 2014
  20. chemistry

    1)A sample of CO2 gas which weighs 0.85 grams has a volume of 1.30 liters when collected at 30°C. What would be the pressure of the gas sample? 2) A gas sample has an original volume of 600 ml when collected at 720 mm and 35°C. If a change is made in the

    asked by Anonymous on April 22, 2014
  21. Chemistry

    We did a titration of calcium hydroxide lab in chemistry, once with and once with edta, we have to calculate the solubility for both, and the ksp, for the hcl I did (concentration)*(Volume of hcl used) then that answer divided by two divided by the amount

    asked by Dan on March 14, 2016
  22. maths

    1) A chemistry teacher requires 250 milligrams of a chemical for an experiment. He has 30 grams of the chemical. How many times can he carry out the experiment? 2) A bottle contains 1.5 litres of cola. Hannah drinks 300 ml of the cola and Ben drinks 450

    asked by paper on February 17, 2013
  23. chemistry

    You suspect your trophy for the “Freshman Chemistry Award” of mass 122.6 g is not composed of pure gold and you decide to test this by immersing the trophy into a graduated cylinder containing a liquid shown in Fig. 2A. The result is shown in Fig. 2B.

    asked by Katie Jones on September 20, 2013
  24. science

    Chemistry Hey guys, i have a question about how to figure out how much mass of a compound i need to find 130ppm here is the question. What mass of Fe(NH4)2(SO4)2*6H2O is required to prepare 2.25 L of a 130 ppm iron solution? Now i know that ppm is (mg of

    asked by John on November 17, 2013
  25. Chemistry

    When Solid NaHCO3 was placed in a rigid container witha volume of 2.5L and heated to 160 degrees Celsius, the equilibrium was reached. 2 NaHCO3(s) -> Na2CO3 (s) + CO2(g) + H2O(g) At equilibrium, some of the starting material remains and the total pressure

    asked by lawerence on May 5, 2015
  26. Chemistry Lab

    In chemistry we are doing a lab that involves crucibles and Mg ribbon, we have three days to complete the lab. Anyways do you think it would be alright to substitute the mass of the crucible we had the first day with the mass of the crucible we had today?

    asked by Anonymous on November 19, 2014
  27. English

    1. Is Eminem a male name or a femalee name? How do you pronounce "Eminem." 2. When you give birth to the baby, you will feel painful. 3. When you deliever the baby, you will feel painful. 4. When you are delivered of the baby, you will feel painful. (Which

    asked by rfvv on November 8, 2009
  28. Physics

    As the initially empty urinary bladder fills with urine and expands, its internal pressure increases by 3600 Pa, which triggers the micturition reflex (the feeling of the need to urinate). The horizontal square section of the bladder wall with an edge

    asked by Mike on November 22, 2010
  29. CHEMiSTRY

    what is the relationship between the pressure of a gas and the absolute temperature when the volume is kept constant ?

    asked by diana on March 8, 2010
  30. chemistry

    how much faster does krypton diffuse than bromine under the same conditions of temperature and pressure?

    asked by nyakno on June 14, 2015
  31. CHEMISTRY

    The pressure exerted by 6.0g of methane gas in a 0.03m3 vessel at 129degreeC is.

    asked by Tanya on March 22, 2015
  32. Plate Movement

    How does gravity contribute to plate movement? I think cause it like puts up pressure doesnèt it

    asked by Anonymous on January 12, 2011
  33. Chem-Gases

    Explain how attractive forces between molecules decrease the pressure of a gas?

    asked by Dia B on September 19, 2012
  34. Psycology

    What makes a stressor worse? repetition, repulsiveness, pressure, or exhaustion

    asked by Robert on March 20, 2007
  35. Chemistry

    F2 (g) 2 F (g) A 1.00 mol sample of F2 is placed in a 100. L container at 1000K. What is the pressure of the F2 before any decomposes?

    asked by Michael on February 17, 2011
  36. Chemistry

    What is the pressure in a 22.1-L cylinder filled with 16.3g of oxygen gas at a temperature of 329K?

    asked by Trina Wash on November 24, 2014
  37. chemistryy

    what is the relationship between the pressure of a gas and the absolute temperature when the volume is kept constant ?

    asked by diana on March 8, 2010
  38. scien

    4g of h2 and 32g of so2 are present in gaseous mixture at n.t.p the partial pressure of h2 is?

    asked by rohini jha on August 7, 2012
  39. History

    How has the united states used economic pressure to promote the spread of democracy

    asked by Chris on April 12, 2017
  40. chemistry

    Assuming a temperature of 37 C and 1 atm pressure, how many mol/min of CO2 is this?

    asked by sarah on April 5, 2011
  41. Chemistry

    F2 (g) 2 F (g) A 1.00 mol sample of F2 is placed in a 100. L container at 1000K. What is the pressure of the F2 before any decomposes?

    asked by Michael on February 17, 2011
  42. Chemistry

    F2 (g) 2 F (g) A 1.00 mol sample of F2 is placed in a 100. L container at 1000K. What is the pressure of the F2 before any decomposes?

    asked by Michael on February 18, 2011
  43. physics

    determine the pressure of a 20 lb force is applied to an area of 10 inch squared

    asked by charles on September 8, 2013
  44. science

    why is fair weather common duing periods oh high pressure?

    asked by danaeja on March 9, 2010
  45. physics

    What is the pressure in Pascals exerted on a surface measuring 0.5 m^2 by a force of 125 N?

    asked by jason on January 23, 2012
  46. Chemistry

    What pressure is required to reduce 34 mL of a gas at standard conditions to 16 mL at a temperature of 20◦C

    asked by Emily on March 29, 2015
  47. Science

    Deduce Dalton's law of partial pressure from kinetic theory

    asked by Harday on June 28, 2015
  48. Introduction to Physical Science

    How do the pressure variations with depth affect our ability to explore the ocean?

    asked by Tracee on August 7, 2013
  49. Chemistry

    If the pressure is 10.0 atm, what is the temperature? If a 2.53-L container is filled with 169 g argon

    asked by Tonya on April 15, 2013
  50. PHYSICAL SCIENCE

    How do the pressure variation with depth affect our ability to explore the ocean?

    asked by SHEILA on October 22, 2012
  51. chemistry help me please

    What values does STP have for pressure in the units of kPa and atm and mmHg?

    asked by Anonymous on June 1, 2010
  52. Thermodynamics

    Derive Otto cycle efficiency and Mean Effective Pressure relation.

    asked by Aaabb on October 15, 2017
  53. physics

    determine the pressure of a 20 lb force is applied to an area of 10 inch squared

    asked by charles on September 8, 2013
  54. chem

    how much pressure does 35 grams of carbon dioxide at 400 kelvin exert?

    asked by pat on May 10, 2010
  55. chemistry

    If 20.0g of nitrogen gas has a volume of 4.00L and a pressure of 6.0 atm, what is its temperature?

    asked by Anonymous on December 1, 2009
  56. Chemistry

    Which of the following has the highest vapor pressure? CCl4 CBr4 CH3CH3 CH3CHBr2

    asked by Tiffany on April 19, 2010
  57. for Drbob222

    how do I calculate pressure exerted by H2 in a Mg and HCl reaction? (weighing by redox)

    asked by Rebecca on October 29, 2007
  58. Chemistry

    Find density of C02 at room temperature and normal pressure.

    asked by Anonymous on March 11, 2015
  59. Chemistry

    At constant pressure, which of these systems do work on the surroundings? Check all that apply. A(s) + 2B(g) ---> C(g) 2A(g) + B(g) ---> 4C(g) A(g) + 2B(g) ---> 2C(g) A(s) + B(s) ---> C(g)

    asked by Yasha on March 23, 2012
  60. Chemistry AP

    What is the mass of oxygen in a ml flask if the pressure is 1.00 atm and a temperature of 22.0 Celsius?

    asked by Julie on February 8, 2011
  61. Human Physiology

    What would be the effect of low blood protein levels on the colloidal pressure?

    asked by Elise on January 10, 2011
  62. science

    To what temperature must a mass of Nitrogen at 0°c,be heated so that both its volume and pressure will be doubled?

    asked by Bisola on June 18, 2017
  63. ChM

    Calculate the pressure exerted by 1.2 mol of gas in a volume of 28.2 L and at a temperature of 61 C.

    asked by Anonymous on July 6, 2013
  64. Chemistry

    Determine the density of chlorine gas at 22C and 1.00 atm pressure.

    asked by Anonymous on April 6, 2010
  65. Physics

    What does the tire preseeure reading in your vehicle signify? Is it an absolute pressure?

    asked by Chris on October 13, 2012
  66. science

    explain why the pressure of the gas particles incfreases as the volume is decreased.

    asked by mic on April 8, 2010
  67. chemistry

    Can metals be fused without heat or pressure, and if it is possible would that be a form of cold fusion?

    asked by Bobby on July 3, 2010
  68. Chemistry

    A 630. mL flask contains O2 at a pressure of 0.75 atm and a temperature of 20°C. What mass of O2 is present?

    asked by Chelsey on February 26, 2014
  69. groundwater science

    True or False: for a particular soil, pressure just under the water table is negative

    asked by dumbguy on February 5, 2011
  70. Chemistry

    A gas at 54◦C occupies 4.54 L. At what tem- perature will the volume be 3.04 L, assuming the same pressure?

    asked by john on February 24, 2014
  71. soil science

    True or False: for a particular soil, pressure just under the water table is negative

    asked by Dan on February 5, 2011
  72. Chemistry

    At constant pressure, which of these systems do work on the surroundings? Check all that apply. 2A (g) + B(s) --> 3C(g) 2A (g) +2B (g) -->5C(g) A(g)+ B(g) --> C(g) A (s) +2B(g)--> C(g)

    asked by Allie on February 10, 2012
  73. chemistry

    A pressurised can of whipped cream has an internal pressure of 1.11x105 Pa at 25.0 oC If it is placed in a freezer at -15.0 oC, what is the new value?

    asked by darali on May 17, 2010
  74. science

    What the lines making a circle around the high-pressure area indicate. please sombody help

    asked by susie on February 15, 2017
  75. chem

    3. Determine the density of chlorine gas at 22C and 1.00 atm pressure.

    asked by Courtney on April 7, 2010
  76. CHEMISTRY

    What pressure would be required to form a 0.045 M solution of helium (kH = 3.7 x 10-4 M/atm) at 25 °C????

    asked by DEAR GOD HELP ME I DONT KNOW HOW TO DO THIS on August 27, 2017
  77. Physics- moles and gas laws

    What is the volume occupied by 8.0 g of hydrogen under a pressure of 2.8 atm and a temperature of 300 K?

    asked by Darla on February 1, 2012
  78. Science

    Explain why pentane has a significantly higher vapor pressure than 1-butanol?

    asked by Jacky on January 30, 2014
  79. social studies

    What is the difference between high and low pressure systems and what weather does each bring?

    asked by Chloe on April 19, 2010
  80. science

    What is the density value of octane at the pressure of 101.325kpa and temperature of 298K?

    asked by milly on February 23, 2015
  81. Chemistry

    Calculate the pressure of an ideal gas if you have 4.3 L and 2.2 miles at a temperature of 238 K

    asked by Anonymous on April 21, 2017
  82. Chemistry

    Which solution has a higher vapor pressure, 1 M NaCl or 1 M glucose(C6H12O6)?

    asked by Joe on July 28, 2010
  83. Chemistry

    calculate the volume occupied by 7g of N2 gas at 27 degree c and 750mm Hg pressure

    asked by Ashokarao gunupuru on April 7, 2017
  84. chemistry

    A mixture of 94.6g of O2 and 82.2g of Ne is placed in a 200.0L container at 250K . What is the partial pressure of O2 in atmospheres?

    asked by adrian on December 2, 2014
  85. CHEM

    At constant pressure, which of these systems do work on the surroundings? Check all that apply. 2A (g) + B(s) --> 3C(g) 2A (g) +2B (g) -->5C(g) A(g)+ B(g) --> C(g) A (s) +2B(g)--> C(g)

    asked by Akle on February 10, 2012
  86. physics

    the air pressure in the tyres of a car increases during driving.Explain.

    asked by komal on April 28, 2017
  87. Chemistry

    Would the R (PV=nRT)value go up or down if you had not corrected the gas for partial pressure of water? I was thinking down but im not sure

    asked by Tina on January 21, 2010
  88. Science

    Measure the pressure of water being 1000kg/m×m×m and density and 40 kg weight on its base?

    asked by Suresh on July 23, 2017
  89. chemistry

    what volume does 2.5 moles of carbon monoxide occupy at 50.5 kPa pressure and 20.0 C?

    asked by garrett on February 24, 2012
  90. air pressure

    waht two units of air pressure are commonly used in weather reports

    asked by tymera on September 14, 2009
  91. college chem 2

    What pressure would be required to form a 0.050 M solution of helium (kH = 3.7 x 10-4 M/atm) at 25 °C?

    asked by I have no idea what im doing on August 25, 2018
  92. Chemistry

    Why is the expansion of air into a region of low pressure an endothermic proccess?

    asked by Lew on September 20, 2010
  93. Physics

    What type of "fluid" Would exist if the temp was 850°c and pressure was 1.75 atm?

    asked by Layla on March 8, 2018
  94. physics

    Liquids exert pressure at Right Angles to the surface of container.Please explain this with an example

    asked by manavi on August 20, 2014
  95. physics

    what is the pressure exerted on the ground by a cube which has a weight of 600n and a side of 1m

    asked by jemimah on September 16, 2014
  96. Science

    The dimensional formula of density of pressure is D= force/ area = Md^-1T^-2 What does M, d and T and their exponents mean?

    asked by K on July 20, 2018
  97. chemistry

    Explain how the addition of a solute affects the vapor pressure of the solvent.

    asked by kendra on July 14, 2011
  98. Chemistry

    A balloon contains 0.350 mol of Ar at 5.00°C and 68.0 kPa pressure. What is the volume of the gas?

    asked by Robert on June 24, 2014
  99. chem

    What is the formula that relates partial pressure of half-cells and E for the cell?

    asked by Ginger on April 1, 2008
  100. Science

    When measuring the % of above the height. What fraction is above 6.19km? ________% and pressure is _______ mb

    asked by cathy on February 23, 2009