osmotic pressure chemistry

64,562 results, page 4
  1. chemistry

    What is the new pressure of 150ml of a gas that is compressed to 50ml, when the orginal pressure was 3.0atm?
  2. Chemistry

    A sample of gas occupies 24.5 L at a pressure of 1.57 atm; what is the pressure if the volume is increased to 48.3 L?
  3. Chemistry

    A rigid container of O2 has a pressure of 3.9 atm at a temperature of 700 K. What is the pressure at 273 K?
  4. chemistry

    how many moles of gas are contained in a 50.0L cylinder at a pressure of 100.0 atm and a pressure of 35 C?
  5. Chemistry

    When given the pressure and force of a system, how should the pressure formula be rearranged to solve for area?
  6. Chemistry; to drwls or drbob

    i think i have posted this before except i forgot to put the decimal in the temperature. i was hoping you could help me now that it might make more sense. The total pressure in a flask containing air and ethanol at 25.7 C is 878 mm Hg. The pressure of the
  7. chemistry

    The pressure in a 2.5 L container is 755.6 torr. If the volume increases to 3.6 L, what is the new pressure?
  8. Chemistry

    What is the pressure of a fixed volume of hydrogen gas at 38.8°C if it has a pressure of 1.36 atm at 15.0°C?
  9. chemistry

    the air in a 4.00L tank has pressure of 1.70atm what is the pressure in atmospheres 1L
  10. chemistry

    The pressure in an automobile tire is 1.85 atm at 27.0°C. What will be the pressure if the temperature increases to 38.0°C?
  11. chemistry

    A gas occupies 10 liters at a pressure of 40.0 mm hg. What is the volume when the pressure is increased to 60.0 mm hg
  12. chemistry

    A gas has a pressure of 0.370 atm at 50.0 °C. What is the pressure at 22 °C, assuming volume remains constant?
  13. Chemistry

    600cm3 of a gas has a pressure of 1200mmHg find its volume if the pressure is reduced to 1001mmHg
  14. Chemistry

    a basketgball is inflated to a pressure of 1,50 atm in a 20.c garage. What is the pressure of the basketball outside whre the temperature is -5.00 C?
  15. Chemistry

    If you have a sample of gas with a volume of 15mL and it changes to 25mL , what would be the new pressure if the original pressure was 5.0 atm ?
  16. chemistry

    A rigid container of O has a pressure of 340 kPa at a temperature of 713 K. What is the pressure at 273 K?
  17. chemistry

    A rigid container of O2 has a pressure of 340 kPa at a temperature of 713 K. What is the pressure at 273 K?
  18. General Chemistry

    A tank of oxygen is under a pressure of about 4.00 x 10^3 kPa. Express this pressure in millimeters of mercury.
  19. chemistry

    A sample of argon at 300.°C and 50.0 atm pressure is cooled in the same container to a temperature of 0.°C. What is the new pressure?
  20. chemistry

    Shown below is a rough sketch of the unary phase diagram (pressure vs. temperature) for carbon dioxide (CO2), dry ice. Note the diagram is not drawn to scale and contains breaks in the axes to signify this. Using the diagram, answer the following
  21. Chemistry

    Three gases (8.00 g of methane, CH4, 18.0 g of ethane, C2H6, and an unknown amount of propane, C3H8) were added to the same 10.0-L container. At 23.0 ∘C, the total pressure in the container is 4.40 atm . Calculate the partial pressure of each gas in the
  22. chemistry

    Three gases (8.00 g of methane, CH4, 18.0 g of ethane, C2H6, and an unknown amount of propane, C3H8) were added to the same 10.0-L container. At 23.0 ∘C, the total pressure in the container is 5.20 atm . Calculate the partial pressure of each gas in the
  23. Chemistry

    If the thermometer reads 22 c and this corresponds to 19.8mmhg of water pressure , what is the pressure of a pure gas collected over water if the total pressure is 760 mmhg?next calculate the pressure of the gas and lets assume its hydrogen gas in atm.
  24. Chemistry

    1) 0.19 litre of an ideal monatomic gas (Cv,m = 3R/2) initially at 83 °C and 47 atm pressure undergo an expansion against a constant external pressure of 1.19 atm, and do 2.3 kJ of work. The final pressure of the gas is 1.19 atm. Calculate the change in
  25. chemistry

    Ideal Mixed Gas Law problems 1. What is the pressure generated by a mixture of 25.6 g SO2 and 12.6 g Ne in a container of 72.45 L and temperature of 131 K? 2. What is the pressure of a mixture of 5.80 moles Kr and 2.71 moles Xe in a container with a volume
  26. Chemistry

    I saw that this was posted earlier but i can't find the previous one with the answer. Please Help. I don't understand how to make this equation work The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. The pressure of the air in
  27. chemistry

    Three gases (8.00 g of methane, CH4, 18.0 g of ethane, C2H6, and an unknown amount of propane, C3H8) were added to the same 10.0-L container. At 23.0 ∘C, the total pressure in the container is 4.50atm . Calculate the partial pressure of each gas in
  28. Chemistry

    Atmospheric pressure on the peak of Mount Everest can be as low as 0.20 atm. If the volume of an oxygen tank is 10.0 L, at what pressure must the tank be filled so that the gas inside would occupy a volume of 1.2x10^3L at this pressure? Tried using the
  29. chemistry

    Suppose two gases in a container have a total pressure of 1.20 atm. What is the pressure of gas B if the partial pressure of gas A is 0.75 atm?
  30. chemistry

    If a gas sample has a pressure of 31.3 kPa at 0.00°C, by how many degrees Celsius does the temperature have to increase to cause the pressure to double?
  31. Chemistry

    Suppose a can contains a residual amount of gas at a pressure of 755 mm Hg and a temperature of 25 °C. What would the pressure be if the can were heated to 1155 °C?
  32. CHEMISTRY

    Solve for the new pressure in each of the following with N and V constant A sample of Na with a pressure of 770 mmHG at -60C is heated to 23C
  33. Chemistry

    A sample of nitrogen gas occupies 1.55 L at 27oC and 1 atm pressure. What will the volume be at -100oC and the same pressure?
  34. chemistry

    A sample of oxygen occupies 10.0 L under a pressure of 105 kPa. At what pressure will it occupy 13.4 L if the temperature does not change?
  35. chemistry

    An air sample contains 0.032%CO2 .If the total pressure is 756mmHg , what is the partial pressure ofCO2 ?
  36. Chemistry

    The pressure of a 27o mL sample of gas is 102 kPa. What would be the pressure if the volume were increased to 378 mL?
  37. Chemistry

    A gas exerts a pressure of 350 mmHg in a sealed container. What will be its pressure if the temperature doubles
  38. 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
  39. physical chemistry

    the atmospheric pressure on mars is 0.61 kPa. what is the pressure in mm of Hg?
  40. chemistry

    A mixture of 8.00 g He and 26.5 g Ne has a pressure of 820. mm Hg. What is the partial pressure of each of the gases?
  41. chemistry

    A particular gas has a pressure of 1614 torr. This pressure is equivalent to
  42. Chemistry

    A mixture of 6.50 g He and 37.0 g Ne has a pressure of 610. mm Hg. What is the partial pressure of each of the gases?
  43. chemistry

    A helium-filled balloon of the type used in long-distance flying contains 420,000 ft3 (1.2 times 107 L) of helium. Suppose you fill the balloon with helium on the ground, where the pressure is 737 mm Hg and the temperature is 16.0 °C. When the balloon
  44. physics

    An eardrum can burst when the pressure exceeds one atmosphere and the pressure inside the ear fails to equalize. Determine the depth in seawater when this pressure would be reached. (pressure of ocean = 1.03*10^3 kg/m^3)
  45. Chemistry

    If the pressure of 8.0 L of nitrogen gas in a flexible container is decreased to one-fifth of its orginal pressure(at constat teperature)' the volume will now be ?
  46. Chemistry

    You begin with 100mL of air at 1 atm of pressure. How would you change the pressure in your machine to accomplish you goal of 500mL?
  47. St. Basil's school: Chemistry

    The pressure of a gas having volume 1800ml. Originally occupying 300ml. at 6 atms. Pressure.
  48. chemistry

    Calculate the partial pressure of 24 g methane, 48 g of oxygen and 56 g of nitrogen contained in a 25L container. What is the total pressure.
  49. Chemistry

    Determine the final pressure of a gas that has initial pressure of 1.00 atm and is heated from 20.0 C to 30.0 C in a container with a fixed volume.
  50. applied chemistry

    A sample of oxygen occupies 10.0 L under a pressure of 105 kPa. At what pressure will it occupy 13.4 L if the temperature does not change?
  51. chemistry

    A 10.6 liter at 25 C and 3.21 atm inside pressure became 12.8 liters at 221 C after driving in summer. What is the pressure in the hot tire?
  52. chemistry

    Calculate the partial pressure of helium in a 1.00 L flask that contains equal numbers of moles of He, Ne, and Ar at a total pressure of 8.35 atm.
  53. chemistry

    as the pressure increases, the volume______, and as the pressure decreases the volume ________. fill in the blanks is it decrease then increse
  54. chemistry

    130cm3 of a gas excarts a pressure 750mmhg . calculate it pressure if its volume is increase to 150cm3 at 35oc
  55. Chemistry

    Calculate the partial pressure of helium in a 1.00 L flask that contains equal numbers of moles He, Ne, and Ar at a total pressure of 5.26atm
  56. Chemistry

    Based on pressure values for each component of the reaction, what is the value of the reaction quotient, Q? Equation: C2H2 + 2 H2 -> C2H6 C2H2 has a pressure of 5.05 atm H2 has a pressure of 4.35 atm C2H6 has a pressure of 0.0225 atm
  57. Chemistry

    Based on pressure values for each component of the reaction, what is the value of the reaction quotient, Q? Equation: C2H2 + 2 H2 -> C2H6 C2H2 has a pressure of 5.05 atm H2 has a pressure of 4.35 atm C2H6 has a pressure of 0.0225 atm
  58. chemistry

    The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. The pressure of the air in the flask at 257C is 762 mm Hg. If the flask is immersed in a water bath at 400C, the total pressure is 980 mm Hg. The vapor pressure of ethanol at
  59. chemistry

    The instruction booklet for your pressure cooker indicates that its highest setting is 13.5psi . You know that standard atmospheric pressure is 14.7psi , so the booklet must mean 13.5psi above atmospheric pressure. At what temperature will your food cook
  60. Biology

    Systolic blood pressure is the pressure in veins. pressure in major arteries caused by the contraction of the left ventricle. pressure in major arteries when the heart is relaxing. difference in pressure that causes the pulse. hard im thinking its B
  61. Chemistry

    When solid CO2 (dry ice) is allowed to come to equilibrium in a closed constant volume container at room temperature (300K), 1. the pressure rises until it reaches 1 atm 2. the pressure rises until a liquid-gas equilibrium is reached. 3. the pressure does
  62. CHEMISTRY

    A GAS OCCUPIES A VOLUME OF 584 ML AT A PRESSURE OF 12.01K PA AND A TEMPERATURE OF 303K. whEN THE PRESSURE IS CHANGES, THE VOLUME BECOMES 477ML. IF THERE HAS BEEN NO CHANGE IN TEMPERATURE, WHAT IS THE NEW PRESSURE? ........ PLEASE HELP ME WITH THIS
  63. Chemistry

    An open-ended mercury manometer is used to measure the pressure exerted by a trapped gas as shown in the figure. Atmospheric pressure is 750. mmHg. What is the pressure (in mmHg or torr) of the trapped gas if h =23 cm? I got 893.462, but that wasn't right.
  64. Chemistry

    Boyle's Law says that the volume of a gas varies inversely with the pressure. When the volume of a certain gas is 2 L, the pressure is 1065 kPa (kilopascals). What is the pressure when the volume is 15 L ?
  65. chemistry

    Nitrogen gas with a pressure of 1.3 atm is passed through water at a temperature of 35 degrees celcius. What is the total pressure in the container?
  66. chemistry

    The vapor pressure of water at 30 Celsius is 31.82 mmHg and the density is 0.9956 g/mL. What is the new pressure after adding enough sorbitol to make a 2.7 m solution?
  67. chemistry

    i keep trying to do these problems and i don't understand them. please help me!! 1. Gas stored in a tank at 273 K has a pressure of 388 kPa. The save limit for the pressure is 825 kPa. At what temperature will the gas reach this pressure? A. 850 K B. 925 K
  68. atmospheric pressure

    How many moles of gas must be forced into a 3.9 ball to give it a gauge pressure of 9.8 at 25? The gauge pressure is relative to atmospheric pressure. Assume that atmospheric pressure is 14.5 so that the total pressure in the ball is 24.3 . Express your
  69. Chemistry

    The plutonium phase diagram is shown below. Solid phases A, B, C, D, E, F, and G are present under various condition of temperature and pressure. Consider increasing the pressure on a plutonium sample at 560 K from P1 to P2. Are phases D, F, and G ever
  70. chemistry

    What is the vapor pressure at 23 ¢ªC of a solution of 1.20 g of naphthalene, C10H8, in 25.6 g of benzene, C6H6? The vapor pressure of pure benzene at 23 ¢ªC is 86.0 mmHg; the vapor pressure of naphthalene can be neglected. Calculate the vapor pressure
  71. chemistry

    The instruction booklet for your pressure cooker indicates that its highest setting is 13.5psi psi . You know that standard atmospheric pressure is 14.7 psi \rm psi, so the booklet must mean 13.5psi psi above atmospheric pressure. At what temperature in
  72. CHEMISTRY

    1. What is the vapor pressure at 25°C of a solution of 1.20g of nephtalene C10H8 in 25.6g of benzone C6H6? The vapor pressure of pure benzene at 23°C is 86.0mmHg the vapor pressure of naphthalene can be neglected. Calculate the vapor pressure lowering of
  73. Chemistry

    A 19.3L expandible container is filled in a room where the pressure is 761mmHg. It is filled with 600.4mmHg nitrogen, 108mmHg oxygen, 32.1 mmHg water vapor. The rest of the pressure is made up by carbon dioxide. The temperature is 20.3°C a. What is the
  74. Chemistry

    A 19.3L expandible container is filled in a room where the pressure is 761mmHg. It is filled with 600.4mmHg nitrogen, 108mmHg oxygen, 32.1 mmHg water vapor. The rest of the pressure is made up by carbon dioxide. The temperature is 20.3°C a. What is the
  75. Chemistry

    A sample of oxygen is collected over water at a total pressure of 592.2 mmHg at 27C. The vapor pressure of water at 27C is 26.7 mmHg. What is the partial pressure of O2? ***Please show steps
  76. chemistry

    this is a really long question. i don't understand how to answer it. help please. A 10.0% aquueous solution of sulfuric acid has a density of 1.0661 g/mL at 20 degrees celsius. A. how many grams of H2SO4 are found in 50.0 g of this solution? B. how many
  77. Chemistry

    1) What is the vapor pressure at 25°C of a solution of 1.20g ofnephtalene C10H8 in 25.6g of benzone C6H6? The vapor pressure of pure benzene at 23°C is 86.0mmHg the vapor pressure of naphthalene can be neglected. Calculate the vapor pressure lowering of
  78. chemistry

    Methanol boils at 65Celcius. The vapor pressure of ethanol at 65Celcius is at 410 torr. for a mixture containing .200 mol of methanol and .100 mol of ethanlol (at 65 Celcius) calculate the: 1. partial pressure of each liquid 2. total vapor pressure of the
  79. chemistry

    the following reaction has a Kp = 109 at 25 degrees C 2NO(g) + Br2(g) reversible 2NOBr(g) If the equilibrium partial pressure of Br2 is 0.0159 atm and equil pressure of NOBr is 0.0768 atm, calculate the partial pressure of NO at equlibrium. What are the
  80. Chemistry

    A scuba diver creates a spherical bubble with a radius of 4.0cm at a depth of 30.0m where the total pressure (including atmospheric pressure) is 4.00 atm. What is the radius of the bubble when it reaches the surface of the water? (Assume atmospheric
  81. chemistry

    For a deep descent,a scuba diver uses of helium and oxygen with a total pressure of 8.00 atm. If the oxygen has a partial pressure of 1200 mmHg , what is the partial pressure of the helium?
  82. Chemistry

    A 71.0 L cylinder containing CH2O at a pressure of 0.550 atm is connected by a valve to 1.50 L cylinder containing N2 at 266.0 torr pressure. Calculate the partial pressure (atm) of N2 when the valve is opened.
  83. chemistry

    If ∆G˚= -190.60 kJ of the reaction H2+Cl2 <--> 2HCl , what is the ∆G at -10.5˚C of the system if the pressure of H2=3.2atm and the pressure of Cl2=9.7atm and the pressure of HCl= 7.65atm ?
  84. chemistry

    A 828 mL sample of NO2 gas is at STP. If the volume changes to 598 mL and the temperature changes to 12ºC, what will be the new pressure in atmospheres? new pressure=_____atm
  85. chemistry

    a rigid container of O2 has a pressure of 340 kPa at a temperature of 713 k what is the pressure at 273 k? show work i dont know but i think formula for it is T1/P1=T2/P2 and that's all I know
  86. Chemistry

    what is the partial pressure of N2 in the mixture of N2 and O2 having a total pressure of 1075 torr if the partial pressure of O2 is 720 torr?
  87. Chemistry

    Dinitrogen tetroxide decomposes according to N2O4 (g) = 2NO2 (g) In a certain experiment, N2O4(g) at an initial pressure of 0.554 bar is introduced into an empty reaction container; after equilibrium is established, the total pressure is 0.770 bar. A
  88. Chemistry

    The apparatus contains methane and oxygen at a temp of 383K. Here is the reaction: CH4(g) + 2O2(g) --> CO2(g) + 2H2O(g) solve for final pressures of all species and the final total pressure, For CH4 the volume = 1.164L the pressure = 6atm For O2 the
  89. Chemistry

    A sample of iron reacted with hydrochloric acid. The liberated hydrogen occupied 40.1 mL when collected over water at 27 C at a barometric pressure of 750 torr. What is the mass of the sample of iron? (Because of the collection of gas over water, the vapor
  90. Chemistry

    What is the vapor pressure of a solution composed of 3.0 moles benzene (vapor pressure 12.1 kPa) & 1 mole chloroform (vapor pressure 25.2 kPa)
  91. Chemistry

    My teacher gave us the answer to a chemistry problem and i cannot figure out how she got the answer. Can you help me work out this problem so i can better understand it. A gas under an initial pressure of 0.60atm is compressed at a constant temperature
  92. Chemistry

    If a sample of Helium gas is collected over water, what is the pressure of the dry gas alone if the total pressure is 760.0 mmHg and the partial pressure of water is 20.0 mmHg?
  93. Chemistry

    A closed container is filled with oxygen. The pressure in the container is 435kPa . What is the pressure in millimeters of mercury? (i know that 1atm=760mm Hg=101,325 Pa) How do I use this to solve for the question? so: 435kPa*101,325=44,076,375Pa, & O2 =
  94. chemistry B-11

    A sample of gas in a 10.0-L container exerts a pressure of 565 mm Hg. Calculate the pressure exerted by thrvgas if he volume is changed to 15.0 L at constant temperature.
  95. chemistry

    Determine the final pressure of a gas that has an initial pressure of 1.00 atm and is heated from 20 °C to 30 °C. Round to the nearest hundredth. Don't forget the units.
  96. Chemistry

    What volume will 10.0g of oxygen gas occupy at a temperature of 22 degrees C an a pressure of 740. torr? Hint: Change pressure units to atmospheres.
  97. chemistry

    The greatest pressure of the following is that exerted by: (a) a column of Hg 75.0 cm high (d=13.6 g/cm^3) (b) 10.0 g H2 gas at STP (c) a column of air 10 miles high; or (d) a column of CCl4 60.0 cm high (d=1.59 g/cm^3) The answer is b. I know that
  98. Chemistry

    Hi. Can anybody help me with crystals? I have a gas that makes blue crystals when it's been hold in low temperature and high pressure. If pressure becomes higher, it makes red crystals, if pressure becomes lower then it reurns to the blue color. If
  99. chemistry

    1)calculate the pressure, expressed in pascals, that the brick exerting a force of 18N, and dimensions od 9.3cm x 5.5 cm. I know that Pressure = force divided by the area. the answer I got was 0.4Pa. Is this correct? 2) why is an ax more useful to use (in
  100. chemistry

    a mixture of NaCl and sucrose that has a combined mass of 10.20g is dissolved in enough water to make up to a 250mL solution. osmotic presdure of solution is 7.32atm at 23℃. calculate the mass percent of NaCl