If 456 dm^3 of krypton at 101 kPa and 21 degrees C is compressed into a 27.0 dm^3 tank at the same temperature, what is the pressure of krypton in the tank? V1= 456 dm^3 V2= 27.0 dm^3 P1= 101

16,844 results
  1. Chemistry

    the vapor pressure of ethanol at its normal boiling point would be 1)80 kPa 2)101.2 kPa 3)273 kPa 4)373 kPa would it be 1 ?

  2. Physics

    The planet Krypton has a mass of 7.1 × 1023 kg and radius of 3.3 × 106 m. What is the acceleration of an object in free fall near the surface of Krypton? The gravita- tional constant is 6.6726 × 10−11 N · m2/kg2. Answer in units of m/s2

  3. Chemistry

    What is the total pressure of a mixture of gases made up of CO2, O2 and H2 if the partial pressures are 22.3 kPa, 44.7 kPa and 112 kPa respectively?

  4. chemistry

    A 10-g mass of krypton occupies 15.0 L at a pressure of 210 kPa. Find the volume of the krypton when the pressure is increased to 790 kPa.

  5. physics

    How much absolute (total) pressure must a submarine withstand at a depth of 120m in the lake. Give answer in kPa. (Use 10m/s^2 for g). h=120m p_water = 1 g/cm^3 = 1000 kg/m^3 p_atmosphere = 101.3kPa P_total = ? P_water =density *g*h =1000*10*120 =1200000Pa

  6. Chemistry

    A reaction requires 22.4 L of gas at STP. You have 30.5 L of gas at 101.5 kPa and 373 K. Which of the following statements is true? (Use the ideal gas law: PV = nRT where R = 8.31 L-kPa/mol-K.) You will have excess gas for the reaction. You will have

  7. Chemistry

    If a balloon containing 1000 L of gas at 50 degrees Celsius and 101.3 kPa rises to an altitude where the pressure is 27.5 kPa and the temperature is 10 degrees Celsius, its volume there is?

  8. Physics

    An ideal gas is sealed within a container at a temperature of 17°C and a pressure of 101 kPa. The container is heated until the temperature of the gas reaches100°C. A valve in the container is then opened to allow gas to escape until the pressure falls

  9. Chemistry

    How many moles of helium are contained in a 5.00-L canister at 101 kPa and 30.0 degrees Celsius? I don't understand how to get the answer. My teacher didn't explain the work she just gave me the answer.

  10. chemistry

    the pressure on 200 milliliters of a gas at constant temperature is changed from 50.65 kPa to 101.3 kPa. what is the new volume of the gas?

  11. Chemistry

    1. How much heat is absorbed when 63.7g H(small 2)O [water](l) at 100 degrees C and 101.3 kPa is converted to steam at 100 degrees C? Express your answer in kJ. Is there an equation? 2.How much heat (in kJ) is released when 0.677 mol NaOH(s) is dissolved

  12. chemistry

    A breathing mixture used by deep-sea divers contains helium, oxygen, and carbon dioxide. What is the partial pressure of oxygen at 101.4 kPa ifpHe = 82.5 kPa and pCO2 = 0.4 kPa

  13. Chemistry

    A sample of H2 is collected over water such that the combined hydrogen–water vapor sample is held at a pressure of 1 standard atmosphere. What is the partial pressure of the H2 if that of the water vapor is 2.5 kPa? A. 103.8 kPa B. 98.8 kPa C. 2.5 kPa D.

  14. Chemistry

    A gas storage tank has a volume of 3.5*10^5 m^3 when the temperature is 27 degrees celcius and the pressure is 101 kPa. What is the new volume of the tank if the temperature drops to -10 degrees celcius and the pressure drops to 95 kPa?

  15. Chemistry

    If 456 dm^3 of krypton at 101 kPa and 21 degrees C is compressed into a 27.0 dm^3 tank at the same temperature, what is the pressure of krypton in the tank? V1= 456 dm^3 V2= 27.0 dm^3 P1= 101 kPa P2= ? P2= 101 kPa * 456 dm^3/ 27.0 dm^3 ANSWER: 1705.78 kPa

  16. AP Chem

    Can someone please check these problems? 34. You fill a balloon with helium gas to a volume of 2.68 L at 23 degrees C and 789 mmHg. Now you release the balloon. What would be the volume of helium if its pressure changes to 632 mmHg but the temperature is

  17. Chemistry

    A 10 g mass of krypton occupies 15.0L at a pressure of 210 kPa. Find the volume of the krypton when the pressure is increased to 790kPa. Thanks

  18. Chemistry

    A gas has a volume of 1,400 milliliters at a temperature of 20.0 K and a pressure of 101.3 kPa. What will be the volume when the temperature is changed to 40.0 K and the pressure is changed to 50.65 kPa?

  19. Physics

    The planet Krypton has a mass of 9*10^ 23 kg and radius of 1.2 * 10 ^ 6 * m What is the acceleration of an object in free fall near the surface of Krypton? The gravita tional constant is 6.6726*10^ -11 N* m^ 2 /kg^ 2 Answer in units of m/s^ 2

  20. Chemistry

    a gas has a volume of 1.75 L at -23 degrees Celsius and 150 kPa at what temperature will the gas occupy 1.30 L at 210 kPa

  21. math

    Which equation is set up correctly to determine the volume of a 3.2 mole sample of oxygen gas at 50°C and 101.325 kPa? V=(3.2 mol)(8.314 L⋅kPa/K⋅mol)(323 K)101.325 kPa V=(3.2 mol)(8.314 L⋅kPa/K⋅mol)(50∘C)1 atm V=(8.314

  22. chemistry

    A gas mixture contains 75.2% nitrogen and 24.8% krypton by mass. What is the partial pressure of krypton in the mixture if the total pressure is 853mmHg ?

  23. thermodynamics

    Air is compressed isothermally at 20 degree C from 95 Kpa to 750 Kpa. Find the work during the process in KJ.

  24. Physical Science

    During a storm, the wind exerts a 150-N force on a window that measures 1.00 m by 0.50 m. The outside air pressure is 101 kPa. What pressure, in pascals, does the wind exert on the window? a. 75 Pa b. 150 Pa c. 1.5 x 10^3 Pa d. 3.0 x 10^2 Pa e. 3.0 x 10^5

  25. Chem

    Convert the final pressure for problem #1 into mmHg, Pa (kg/m∙s2), and kPa. Also, use 1 atm = 14.696 psi to convert to psi (pounds per square inch). Refer to conversion factors in the chapter 5 notes. Show all units and conversion factors. Final pressure

  26. chemistry

    Convert the concentration of SO2 from 80µg/m^3 to units of parts per million. The gas has temperature of 25 degree Celsius and a pressure of 101.325 kPa.

  27. Chemistry

    A 10 gram of mass of krypton occupies 15.0 L at a pressure of 210 kPa. What is the volume of the krypton when the pressure is increased to 790 kPa?

  28. chem

    The pressure 15.0 meters under water is 248 kPa. what is this pressure in bar? (how would you set this up) what is the pressure in torr? I believe the second one is set up like this: 248 kpa * (760 torr/ 101.325 kpa)= 1860.15.. Although, if the lowest sig

  29. heat

    if the absolute pressure of a gas is 550.280 kPa, its gage pressure is ? A.101.325kPa b.277.280kPa c.448.955kPa d.651.605kPa Gauge pressure - atmosphericpressure=absolute pressure where atmospheric pressure varies, but standard atmospheric pressure is

  30. Math

    For the following data... 1. Provide evidence as to whether this data set if Gaussian or non Gaussian. 2. Determine the normal reference range. 3. Define a cut-off. Describe how a ROC curve can be used to determine such. 95 95 81 95 98 79 88 98 84 79 98 84

  31. chemistry

    How much faster will neon effuse than krypton, given that the molar mass of krypton is 83.8 grams and that of neon is 20.18 grams?

  32. Chemistry

    A eudiometer contains 65.0 ml sample of gas collected by the diplacement of water. The water levels inside and outside the eudiometer are the same. The atmospheric pressure is 92.5 kPa and the temperture is 23 degrees. What volume will the dry gas occupy

  33. Chemistry

    What is the one standard atmosphere of pressure in kilospascals 0 kPa 1 kPa*** 101.3 kPa 760 kPa

  34. physical science

    If the absolute pressure of a gas is 550.280 kPa, its gage pressure is A. 101.325 KPa B. 277.280 KPa C. 448.955 KPa D. 651.605 Kpa

  35. chemistry

    What is w when a gas is compressed from 49.7 L to 37.7 L using a constant external pressure of 747 Torr? Note: 760 Torr = 1 atm = 1.01325 bar = 101.325 kPa

  36. Chemistry

    How would I find the volume occupied by 3 moles of N2 at zero degrees and 101.325 kPa?

  37. Chemistry

    A gas storage tank has a volume of 350,000 when the temperature is 27 degrees celcius and the pressure is 101 kPa. what is the new volume of the tank if the temperature drops -10 degrees celcius and the pressure drops to 95 kPa? please show work.

  38. Physics

    The absolute pressure 20 m beneath the ocean is 303 kPa. Atmospheric pressure above the ocean is 101 kPa. What gauge pressure (in kPa) would a diver measure at this 20 m depth? Thanks

  39. science

    A gas sample occupies 4.2 Liters at a pressure of 101 kPa. What volume will the will it occupy if the pressure is increased to 235 kPa?

  40. physics

    What is the (absolute) pressure of a bulb? (to 3 s.f and in kPa) (Patm = 101 kPa, ρwater = 1000 kg m−3) Height = 16.0cm what equation am i meant to use here? is it P = pgh + Patm ? or something else. help would be much appreciated.

  41. Physics

    An ideal gas is sealed within a container at a temperature of 17°C and a pressure of 101 kPa. The container is heated until the temperature of the gas reaches100°C. A valve in the container is then opened to allow gas to escape until the pressure falls

  42. chem

    Nitrogen(75.5 kPa), oxygen (19.2 kPa), carbon dioxide(0.05 kPa) and water vapor(4.3 kPa) are the usual atmospheric components. What is the total atmospheric pressure in kPa?

  43. AP Chemistry

    Part 1 of 3: An apparatus consists of a 2 L flask containing nitrogen gas at 30 degrees C and 758 kPa, joined by a valve to a 11 L flask containing argon gas at 30 degrees C and 49.7 kPa. The valve is opened and the gases mix. What is the partial pressure

  44. physics

    Two hundred liters of gas at zero degrees Celsius are kept under a pressure of 150 kPa. The temperature of the gas is raised to 273 degrees Celsius and the pressure is increased to 600 kPa. What is the new volume?

  45. Algebra

    Solve 1.3(7x+4)=1.8(x+5) choose the correct solution set below A){x|x¡Ü84/101} B){x|x¡Ü-84/101} C){x|x¡Ý-84/101} D){x|x¡Ý84/101}

  46. chemistry

    a gas has a volume of 1.75 L at -23 degrees C and 150.kPa What temp would the gas occupy 1.30 L at 210.kPa?

  47. Chemistry

    Here is my question and I,m hoping I worked the problem out correctly. A 10-g mass of krypton occupies 15.0 L at a pressure of 210 kPa. Find the volume of the krypton when the pressure is increased to 790 kPa. V2 = V1 x P1/P2 V2 = 15.0 L x 210 kPa/790 kPa

  48. Chemistry combined gas law

    Can someone tell me if I did this combined gas law problem correctly? What would happen to the volume of a container whose initial volume is 21.5 L at STP (standard pressure) and is introduced to conditions of 93.2 kPa and 333 K? Formula: P1 x V1 / T1 = P2

  49. Chemistry combined gas law

    Can someone tell me if I did this combined gas law problem correctly? What would happen to the volume of a container whose initial volume is 21.5 L at STP (standard pressure) and is introduced to conditions of 93.2 kPa and 333 K? Formula: P1 x V1 / T1 = P2

  50. physics

    How much absolute (total) pressure must a submarine withstand at a depth of 120m in the lake. Give answer in kPa. (Use 10m/s^2 for g). h=120m p_water = 1 g/cm^3 = 1000 kg/m^3 p_atmosphere = 101.3kPa P_total = ? P_water =density *g*h =1000*10*120 =1200000Pa

  51. Chemistry Check?

    1. A sample of neon is collected at 1273.51 kPa and 12.0 oC. It has a volume of 2.25 L. What would be the volume of this gas at STP? (2.25 L) x (1273.51 kPa / 101.3 kPa) x (0 + 273.15 K) / (12.0 + 273.15 K) = 27.1 L 2.A sample of argon has a volume of 1205

  52. PHYSICS

    A cylinder with a moveable piston holds 2.40 mol of argon at a constant temperature of 295 K. As the gas is compressed isothermally, its pressure increases from 101 kPa to 141 kPa. What is the final volume of the gas? I don't know where to begin. I tried

  53. physics

    A cylinder with a movable piston holds 2.75 mol of argon gas at a constant temperature of 295 K. As the gas is compressed isothermally, its pressure increases from 101 kPa to 121 kPa. Find (a) the final volume of the gas, (b) the work done by the gas, and

  54. chemistry

    the volume of a gas measured at 27 c and 101.3 kpa is 20.0 dm3 what final temperature would be required to increase the volume too 40.0 at 101 kpa

  55. Chemistry

    Question: A sample of Freon-12 (CF2Cl2) occupies 2.261 x 101 L at 337 K and 2.917 x 102 kPa. Find its volume (in L) at standard temperature and pressure (STP). Equation: p1v1/t1=p2v2/t2 My Work: (2.917 x 102 kPa)(2.261x101 L)/337K = (101.3 kpa)( x )/273 k

  56. Physics

    A cylinder with a moveable piston holds 2.60 mol of argon at a constant temperature of 295 K. As the gas is compressed isothermally, its pressure increases from 101 kPa to 149 kPa. (a) Find the final volume of the gas. Answer in m3 (b) Find the work done

  57. physical science

    If the absolute pressure of a gas is 550.280 kPa, its gage pressure is A. 101.325 KPa B. 277.280 KPa C. 448.955 KPa

  58. Chemistry

    A 10.00 g sample of He is compressed isothermally from a volume of 61.1 L to a volume 2.00 L at a temperature of 25 °C. Calculate the work done by the gas on the surroundings if the external pressure is 101.325 kPa.

  59. math

    Atmospheric pressure V decreases as altitude h increases. At a temperature of the pressure is 101.1kilopascals kPa at sea level, 86.4 kPa at h = 1 km, and 77.1 kPa at h = 2 km. Use a linear approximation to estimate the atmospheric pressure at an altitude

  60. chemistry

    What mass of N2O occupies a volume of 0.500 L at 0 degrees Celsius and 101.325 kPa?

  61. Chemistry

    Mg + 2HCl -> MgCl2 + H2 Over an interval of 1.00s, the mass of Mg changes by -0.011g What is the corresponding rate of consumption of HCl (in mol/s)? I got 9.0E-4 mol/s and that's the right answer. But I'm having problems with the next question. Calculate

  62. Chemistry;HELP

    Correct the following samples of gases to standard temperature. (Assume pressure is constant)(STP stands for standard temp and pressure which is 273K and 101.3 kPa, you do not have to think about the pressure for these four but on the last three you will

  63. Science-Biochemistry

    What was the alcohol percent by weight in your sample with the most gas production (glucose; which gave 30 mL of CO2)? Remember that the temperature was 40 degrees C and assume the atmospheric pressure was 101.3 kPa.

  64. Chemistry

    A sample of gas is in a 50.0mL container at a pressure of 86 kPa and a temperature of 25°C. The entire sample is heated to a temperature of 35°C and transferred to a new container whose volume is 65.0mL. The pressure of the gas in the second container

  65. Chemistry

    I don't understand this: For the temperature vs time graph for heat and changes of state. The graph starts at -2.1 degrees C The heat of fusion is at 2.0 degrees C The heat of vaporization is on 101.0 degrees C. The graph ends at 103.0 degrees C. So to get

  66. physics

    1500 cm^3 of ideal gas at STP is cooled to -20°C and put into a 1000 cm^3 container. What is the final gauge pressure? 1-11 kPa 2-40 kPa 3-113 kPa 4-141 kPa 5-240 kPa

  67. chemistry

    The gas in a fixed container was at STP before is was lifted by a balloon into the atmosphere. What would the new pressure be in kPa if the temperature at a higher altitude was 268 K? a .00138 kPa b 103 kPa c 99.4 kPa d .982 kPa

  68. chem

    Now the numbers in the question are correct, (Fluorine = 10.10atm Krypton = 1.24atm). Please help. Fluorine and krypton react to form binary compounds when a mixture of the two gases is heated to 500C in a nickel reaction vessel. A 100mL nickel container

  69. College Chemistry

    A 14.0 g sample of Krypton has a temperature of 25C at 625mm Hg. What is the volume, in Milliliters, of the krypton?

  70. Chemistry HW HELP

    A 22.0g sample of krypton has a temperature of 21∘C at 585mmHg . What is the volume, in milliliters, of the krypton gas?

  71. science

    If the absolute pressure of gas is 550.280 kPa, it's gage pressure is what? Subtract atmospheric pressure from that to get gage pressure. Atmospheric pressure varies with altitude and weather, but the average atmospheric pressure, at sea level, is 101.325

  72. physics

    1500 cm3 of ideal gas at STP is cooled to -20°C and put into a 1000 cm3 container. What is the final gauge pressure? 11 kPa 40 kPa 113 kPa 141 kPa 240 kPa

  73. chemistrey

    an ocean depth of 10.0 m, a drivers lung capacity is 2.40 l. the air temperture is 32.0n c and the pressure is 101.30 kpa.what is the volume of the drivers lungs at the same depth, at a temp of 21.0c and a pressure of 141.20 kpa?

  74. Chemistry

    16.3L N2 at 25 degrees Celsius and 125 kPa and 41.9L O2 at 25 degrees Celsius and 125 kPa were transferred to a tank with a volume of 5.25L. What is the total pressure at 55 degrees Celsius?

  75. chem

    Fluorine and krypton react to form binary compounds when a mixture of the two gases is heated to 500C in a nickel reaction vessel. A 100mL nickel container is filled with fluorin and krypton to partial pressures of 1.24 atm and 10.10 atm, respectively at a

  76. 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

  77. Chemistry

    At 20.0°C the vapour pressure of pure methanol is 11.8 kPa and that of pure ethanol is 5.93 kPa. A gaseous mixture of methanol and ethanol is cooled and compressed until the first drops of liquid form at 20.0°C and a total pressure of 10.0 kPa. Assuming

  78. Heat!!!

    Can you please check my answers. My teacher gave me a list of 200 questions to study, but I lost the answer sheet. Can you please help me with these 23 Thanks 1. A silver bar 0.125 meter long is subjected to a temperature change from 200°C to 100°C. What

  79. chemistry

    2nd revision to the question, it is 7.62atm not 7.2atm, its now all correct on the question. sorry again Fluorine and krypton react to form binary compounds when a mixture of the two gases is heated to 500C in a nickel reaction vessel. A 100mL nickel

  80. Chemistry

    How do I find the total vapor pressure of a solution of benzene (mole fraction 0.350, vapor pressure at 25 degrees = 12.7 kPa) in toluene at 25 degrees. (vapor pressure of toluene at 25 degrees = 3.79 kPa)

  81. chemistry

    a wet gas collected over water has a volume of 900 mL at50 degrees Celsius and a pressure of 84.6 kPa. The partial pressure of water at this temperature is 12.3 kPa. What is the volume of the dry gas at 120 kPa?

  82. chemistry

    For A pressure of 25.7 inHg would be how many kilopascals? This is the answer I received: 25.7 mmHg x (101.325 kPa/760.0 mmHg) The mmHg cancel each other out So 98.659 kPa My Question is I started out with inHg, and not mmHg. Would it be the same since I'm

  83. physics

    Compressing gases requires work and the resulting energy is usually converted to heat; if this heat does not escape, the gas's temperature will rise. This effect is used in diesel engines: The compressed air gets so hot that when the fuel is injected, it

  84. Chem

    How many grams of ice at 0°C and 101.3 kPa (standard pressure) could be melted by the addition of 0.80 kJ of heat?

  85. science

    How many litres of oxygen are needed to react completely with 25.0L of H2S at STP according to the following reaction: 2H2S + 3o2 --> 2so2 + 2H2O At STP temperature is 273 K pressure is 101.3 Kpa R is 8.314 so PV=nRT 101.3×25= n× 8.314× 273 n= 1.11 so

  86. CHEM QUICK HELP

    Which of the following are correct statements? (Could be as many as 4) 1. Standard pressure is 101.3 atmospheres 2. One mole of gas contains 22.4 representative particles 3. One mole of gas always occupies 22.4 liters regardless of other conditions 4.

  87. Quantum Physics

    Let f:{0,1}->{0,1} with f(101)=1 and f(x)=0 for x ≠ 101 . In this question, we will run through two iterations of the algorithm. (a) What is the superposition after the initialization step? Note that you can describe the superposition Σαx|x> by

  88. AP Chemistry

    Could you please review my work and see what i'm doing incorrectly? Thank you Given this information: CxHyOz (s) + O2 (g) ----> CO2 + H20 given: 2.165 g of the unknown hydrocarbon v = 1.868 L P = 130.2 kPa T = 65.0 degrees C g of H2O = 1.818 a)find g H in

  89. fluid mechanics

    Mount Kilimanjaro is the highest peak on the African continent and rises to a height of approximately 5900m above sea level.Take the gas constant to be 287 J/kg K and the temperature lapse rate to be 0.0065 K/m. It is known that altitude sickness can occur

  90. Chemistry

    A sample of oxygen gas at 295 kPa takes up 456 L of space at standard temperature (the “T” in STP). What is the new volume when the pressure is lowered to standard pressure (the “P” in STP)?

  91. chemistry quick homework help

    A sample of Freon-12 (CF2Cl2) occupies 2.507 x 101 L at 291 K and 2.518 x 102 kPa. Find its volume (in L) at standard temperature and pressure (STP).

  92. Chemistry

    A sample of krypton gas occupies 95.0 mL at 0.500 atm. If the temperature remained constant, what volume would the krypton occupy at (a) 5.00 atm, (b) 0.0500 atm, (c) 555 torr, (d) 5.00 torr, and (e) 5.5 3 1022 torr?

  93. science: chemistry

    How much faster will neon effuse than krypton, given that the molar mass of krypton is 83.8 grams and that of neon is 20.18 grams?

  94. chemistry

    What mass of sulfur has to burn to produce 4.5L SO2 at 300°C and 101 kPa in the following reaction? S(s) + O2(g) -> SO2(g) A. 3.07 g S B. 41.0 g S C. 13.5 g S D. 68.8 g S

  95. chemistry

    What mass of sulfur has to burn to produce 4.5L SO2 at 300°C and 101 kPa in the following reaction? S(s) + O2(g) -> SO2(g) A. 3.07 g S B. 41.0 g S C. 13.5 g S D. 68.8 g S

  96. Chemistry?

    What mass of sulfur has to burn to produce 4.5L SO2 at 300°C and 101 kPa in the following reaction? S(s) + O2(g) -> SO2(g) A. 3.07 g S B. 68.8 g S C. 41.0 g S D. 13.5 g S

  97. Science

    If A tank with a flat bottom is filled with water to a height of four meters. what is the pressure at any point at the bottom of the tank? my teacher wants me to ignore atmospheric pressure when calculating my answer A. 3.5 kPa B. 3,500 kPa C. 34.3 kPa D.

  98. Chem

    Which of the following are correct statements? (Could be as many as 4) 1. One mole of gas contains 22.4 representative particles 2. Standard pressure is 100 mm Hg 3. One mole of a gas must have the same volume as one mole of any other gas at STP 4. Gas

  99. Physics

    If a tank contains water 4 m deep, what is the pressure at the bottom of the tank? (Neglect the atmospheric pressure.) A. 39.2 kPA B. 18.9 kPA C. 4.0 kPa D. 9.8 kPA Im really lost

  100. Math

    How do I make a bar graph with this? Mass Distance Mass Distance Empty Full 161 456 420 546 161 273 420 455 161 456 420 456

Pages

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20