osmotic pressure chemistry

10,993 results, page 25
  1. Math/ Probability

    The mean systolic blood pressure of adult males is normally distributed with a mean of 138 (millimeters of mercury) and a standard deviation of 9.7. What percent of adult males have blood pressure between 161.28 and 164.9?

    asked by Felicia on May 19, 2010
  2. Physics

    Suppose a large dump truck tire has a surface area of 26.3 m^2. If a force of 1.58×10^7 Newtons acts on the inner tire, what is the absolute pressure inside the tire? What is the gauge pressure on the tire's surface?

    asked by Trin on January 9, 2013
  3. physics(HELP..)

    A diatomic ideal gas is heated at constant volume until its pressure becomes 3 times.it is again heated at constant pressure until its volume is doubled.find the molar heat capacity for the whole process?

    asked by dukesouvik on May 16, 2013
  4. physics

    A diatomic ideal gas is heated at constant volume until its pressure becomes 3 times.it is again heated at constant pressure until its volume is doubled.find the molar heat capacity for the whole process?

    asked by dukesouvik on May 16, 2013
  5. math

    The mean systolic blood pressure of adult males is normally distributed with a mean of 138 (millimeters of mercury) and a standard deviation of 9.7. What percent of adult males have blood pressure between 161.28 and 164.9?

    asked by Leah on January 23, 2010
  6. Chemistry

    A container with a volume of 19.6 L that has temperature of 37C and a pressure of 0.900 atm has its temperature lowered to 0.00C and its pressure raised to 1.90 atm. What will the new volume be? Assume that the number of moles is constant.

    asked by Patrick on May 14, 2012
  7. 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?

    asked by Anonymous on May 25, 2017
  8. Chemistry

    A gas mixture containing N2 and O2 was kept inside a 2 L container at a temperature of 23 C and a total pressure of 1 atm. The partial pressure of oxygen was .722 atm. How many grams of nitrogen were present in the gas mixture?

    asked by Sara on July 20, 2013
  9. Chemistry Help - Check Please

    1) Describe 4 processes/forces that can explain all mechanism in Organic Chemistry? My answers: a) Electron Delocalization b) Hydrogen Bonding c) Aromacity d) Nucleophilic Substitution (SN1 & SN2) Thank you!

    asked by Need Help Urgent on May 5, 2015
  10. chemistry

    can someone explain the leveling effect in chemistry or provide a good link please? in my chem book it says something like HNO3

    asked by Henry on August 5, 2011
  11. Chem Midterm Review

    Ok, so I've been really busy with midterms and my chemistry one is tomorrow. Now, I never intended to let so much time slip by before i started studying, but it happened. It's one of my most important exams. Do I still have a chance of passing? If so, how

    asked by Matt on January 16, 2008
  12. Chemistry

    what volume of ammonia gas will be produced when 1.26L of nitrogen react completely in the following equation? N2 + 3H2 > 2NH3 Please if someone can just give me the order of operation it will be much appreciated because chemistry is just not my forte.

    asked by Randy on April 17, 2012
  13. 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

    asked by Buma on November 11, 2017
  14. 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

    asked by Buma on November 11, 2017
  15. chem

    Which of the following is NOT true about the thermodynamic standard state? A. A gas is in its standard state when its pressure is 1.00 atm and its temperature is 25C. B. An aqueous solution is in its standard state at a concentration of 1.00 M. C. A pure

    asked by Anonymous on February 25, 2008
  16. science

    At a pressure of 2.00 atm, a sample of air consists of 0.20 moles of nitrogen, 0.65 moles of oxygen and 0.15 moles of argon. What is the partial pressure of the oxygen?

    asked by Mickeykalle on October 30, 2012
  17. physics help pleeeeease!!

    A monatomic ideal gas is compressed adiabatically from a pressure of 1.09 105 Pa and volume of 250 L to a volume of 39.0 L. (a) What is the new pressure of the gas? (b) How much work is done on the gas?

    asked by lissa on February 17, 2011
  18. chemistry

    An oxygen gas with a volume of 50 mL at a pressure of 1.5 atm . This gas is compressed up to 35 mL volume at constant temperature . Determine the final gas pressure .

    asked by bruge on January 25, 2016
  19. chemistry

    An oxygen gas with a volume of 50 mL at a pressure of 1.5 atm . This gas is compressed up to 35 mL volume at constant temperature . Determine the final gas pressure

    asked by bruge on January 26, 2016
  20. Statistics

    Assume that the mean systolic blood pressure of normal adults is 120 millimeters of mercury (mm Hg) and the standard deviation is 5.6. Assume the variable is normally distributed. If an individual is selected, find the probability that the individual's

    asked by Anonymous on February 13, 2017
  21. chemestry

    an aqueous solution was prepared by dissolving 1438.0g of a nonelectrolyte in 469.0g of water at 25*c. the Vapor pressure of the resulting solution was found to be 20.5 torr. what is the molar mass of the unknown compound? the vapor pressure of the water

    asked by Nick on March 2, 2011
  22. Physics

    I understand there is a relationship between temperature & pressure. If a rigid open container was placed in a freezer at -15 degrees C. Removed and its airtight cover replaced simultaneously at 1000mb. What would the pressure be within the container if it

    asked by Mike on December 5, 2011
  23. math

    The atmospheric pressure P in pounds per square inch (psi) is given by the formula below, where a is the altitude above sea level (in miles). If a city has an atmospheric pressure of 13.25 psi, what is its altitude? (Recall that 1 mi = 5,280 ft. Round your

    asked by Anonymous on January 22, 2012
  24. math

    The atmospheric pressure P in pounds per square inch (psi) is given by the formula below, where a is the altitude above sea level (in miles). If a city has an atmospheric pressure of 13.25 psi, what is its altitude? (Recall that 1 mi = 5,280 ft. Round your

    asked by Anonymous on October 20, 2011
  25. chemistry

    a 2.50mL sample of dry air in a cylinder exerts a pressure of3.00atm at room temperature. without changing the temperature, a piston is moved until the pressure in the cylinder is reduced to 1.00atm. what is the final volume of the gas?

    asked by jm on March 11, 2013
  26. chemistry

    a 2.50mL sample of dry air in a cylinder exerts a pressure of3.00atm at room temperature. without changing the temperature, a piston is moved until the pressure in the cylinder is reduced to 1.00atm. what is the final volume of the gas?

    asked by jm on March 11, 2013
  27. Chemistry

    A scuba diver 40ft below the ocean surface inhales 50.0 ml of compressed air mixture in a scuba tank at a pressure of 3.00 atm. and a temperature of 8 C. What is the pressure of air in the lungs if the gas expands to 150. ml at a body temperature of 37 C?

    asked by amy on July 19, 2010
  28. Chemistry

    Calculate the work, in kJ, done when 126 g of tin dissolves in excess acid at 25.0˚C and 1.00 atm. Assume Ideal Gas behavior. Sn(s) + 2 H+(aq) → Sn2+(aq) + H2(g) I basically need to know how to find the change in volume since work=-pressure*volume

    asked by Carol on November 2, 2015
  29. physics

    nitrigen gas is used to inflate the tyres of Lewis Hamilton's racing car if the tyre is inflated to a pressure of 2,2 atm at 25 degrees celcius and he takes the car for a lap it heat up to 50 degrees celcius what is the pressure at this temperature

    asked by moeketsi on May 26, 2010
  30. Chemistry

    Consider the chemical reaction C + H2O -----> CO + H2 How many liters of hydrogen gas are formed From the complete reaction of 1.07 mol of C? Assume that the hydrogen gas is collected at a pressure of 1.0 atm and the temperature of 315K So I'm looking for

    asked by Monique on October 20, 2011
  31. Physics (Liquids)

    Hi! Ok P = Po + (greek lowercase letter Ro)gh pressure = atmospheric pressure + density of fluid(gravity)(pressure head) I derived it using calculus and followed along in the book the book assuems in ther derivation that it's a solid cylinder that sits

    asked by Physics (Liquids) on October 22, 2009
  32. salt blood pressure

    Why does an increased salt intake cause a rise in blood pressure in salt sensitive individuals? A Sodium ions from salt increase heart rate. B Chloride ions from salt increase heart rate. C Sodium and chloride ions in blood cause water to move (via

    asked by Tori Renee on October 23, 2006
  33. Chemistry AP

    This isn't quite an HW question, I'm needing any site that gives practice Free Response problems for equilibrium for AP Chemistry if there are any for study and practice.

    asked by Ethan on April 21, 2015
  34. chemistry

    If 35.0 g H2O at 22.7 °C is combined with 65.0 g H2O at 87.5 °C, what is the final temperature of the mixture? The specific heat capacity of water is 4.184 J/g×K. Chemistry

    asked by gsdgsd on December 26, 2012
  35. chemistry

    Do you think that there is a high correlation between proficiency in mathematics and proficiency in chemistry? Explain why or why not. Use details about the components of each field to support your answer.

    asked by help please on December 14, 2017
  36. CHEM ABSTRACT

    I need to write an abstract for my chemistry lab for identifying an unknown acid, is there a generic list of what to do for an abstract? because mine are always to long

    asked by Amber on April 4, 2014
  37. sofunda

    science chemistry..investigate the reaction of a number of elements and compound with water and classify the reaction as exothermic or endothermic.

    asked by ofentse on September 21, 2015
  38. Chemistry

    I'm doing a Chemistry project on the element Potassium. I need some sort of color theme to apply to my project because creativity counts. Does anyone have suggestions?

    asked by Anonymous on November 29, 2008
  39. math 111

    In an examination 31 student passed chemistry 29 pass physics and 3 fail both. If 50 people sat for the exam, how many of them pass chem only

    asked by Anonymous on December 13, 2018
  40. Chemistry

    Why are numbers used in chemistry often expressed in scientific notation? They otten are very large or very small. Printing those types of numbers is onerous.

    asked by Justin on January 11, 2007
  41. Chemistry

    My question is I need to change to symbol on sodium ion, \rm Na^+, followed by the formula of a sulfate ion, \rm SO_4{}^{2-} Its my first time in chemistry class.

    asked by Zulema on June 24, 2015
  42. chemistry

    what is suspension in chemistry? will you please give me a very long explanation about it now.....? I really need it for my project.plz?????? Write your own long explaination, and I will be happy to critique it.

    asked by Lawrifel on October 9, 2006
  43. Chemistry

    A scuba tank contains heliox, a special breathing gas composed of 5.0% oxygen and the remainder helium, for use by divers that spend extended amounts of time at depth underwater. The volume of the tank is 20 L and the pressure within it is 1500 lb/in2.

    asked by alexis on May 3, 2015
  44. Calculus- Please Help!

    Very confused with this question. Amy help would be appreciated. The ideal gas law states that P V = nRT where P is the pressure in atmospheres, V is the volume in litres, n is the number of moles, R = 0.082 L·atm/K·mol is the gas constant, and T is the

    asked by Anonymous on November 5, 2014
  45. Science

    36kg of some material undergoes a process in a piston-cylinder apparatus starting with an initial volume of .057m^3 and pressure of 680kPa. The final volume is twice the initial. Compute the work done by the substance for the following processes: (a)

    asked by J.T. on July 21, 2015
  46. physics

    Water Flows upward throw the pipe shown in the diagram at 96 L/Min. If the pressure at the lower end is 80kPa, find the velocity of the water is at both ends and the pressure at the upper end. Assume that the density of water remains constant throughout

    asked by Shawn on December 3, 2012
  47. chemistry

    A pressurized can of paint contains a fixed mass of gas at an internal pressure of 1.258 atm at 24.8oC. Suppose the can is able to withstand an internal pressure of 2.410 atm before it explodes. At what temperature, in degrees Celsius, will this can

    asked by Mindy on July 29, 2015
  48. chem

    An aerosol can contains gases under a pressure of 4.5 atm at 15◦C. If the can is left on a hot sandy beach, the pressure of the gases increases to 4.78 atm. What is the Celsius temperature on the beach? Answer in units of ◦C

    asked by reis on May 31, 2014
  49. chemistry

    Air trapped in a cylinder fitted with a piston occupies 145.7 mL at 1.08 atm pressure. What is the new volume of air when the pressure is increased to 1.34 atm by applying force to the piston?

    asked by tess on March 21, 2013
  50. CHM

    A sample of gas has an initial volume of 2.4 L at a pressure of 855 mm Hg and a temperature of 298K. If the gas is heated to a temperature of 387 K and expanded to a volume of 4.1 L, what is its final pressure in mm of mercury?

    asked by A on July 6, 2013
  51. College Chemistry

    A 38 L gas tank at 35 Celsius has nitrogen at a pressure of 4.65 atm. The contents of the tank are transferred without loss to an evacuated 55.0L tank in a cold room where the temperature is 4 Celsius. What is the pressure of the tank??

    asked by Smith on March 2, 2010
  52. Chemistry

    The pressure of 6.0 L of an ideal gas in a flexible container is decreased to one-eighth of its original pressure, and its absolute temperature is decreased to one-seventh of the original. What is the final volume of the gas?

    asked by Rachel on September 21, 2010
  53. Chemistry

    At the temperature of 30degree C and pressure of 1*10^5 pa, 30dm3 of H2 gas is burned with 30dm3 of O2 gas in a container of 60dm3. Calculate the pressure different after the complete combustion and cooling upto 30degree C again.

    asked by Emma on February 25, 2013
  54. chemistry

    50cm3 of hydrogen is collected over water at 17 degree celsius and 750 mm Hg pressure.Calculate the volume of dry gas at S.T.P.The water vapour pressure at 17 degree celsius is 14 mm Hg?

    asked by j on May 29, 2015
  55. Physics

    The pressure exerted by a phonograph needle on a record is surprisingly large. If the equivalent of 1.00 g is supported by a needle, the tip of which is a circle 0.200 mm in radius, what pressure is exerted on the record in N/m2?

    asked by Justin on July 14, 2013
  56. Chemistry

    Exactly 1.0 mole of oxygen and 7.0 moles of nitrogen gas are in a container. The total gas pressure is 5.7 atm. What is the partial pressure of nitrogen in atm? I'm not sure how to go about setting up the problem. Any help is appreciated!

    asked by Amanda on February 12, 2014
  57. Chemistry

    What would the partial pressure of hydrogen in the gas collection tube be if the water in the tube was 25.0 mm above the water level in the beaker, the room pressure was 655 mm Hg, and the temperature of the room was 22 degrees C?

    asked by Jenny on July 7, 2015
  58. Chemistry

    When 1 mole of ethylene (C2H4) is burned at constant pressure, 1410 kJ of energy is released as heat. Calculate (delta) H for a process in which 10.0 of ethylene is burned at constant pressure

    asked by Emily on May 26, 2015
  59. chemistry

    At atmospheric pressure, a sample of O2 gas has a volume of 55mL at 27 degrees celcius. What volume in mL will the O2 gas occupy if the temperature is decreased 0 degrees C and the pressure is held constant?

    asked by jeff on November 24, 2009
  60. chemistry

    A sample of gas in a closed container at a temperature of 83C and a pressure of 9 atm is heated to 259C. What pressure does the gas exert at the higher temperature? Answer in units of atm

    asked by luke on June 11, 2012
  61. Chemistry

    HELP PLEASE the volume of a sample of oxygen is 200.0ml when the pressure is 3.00atm and the temp is 37.0 C. What is the new temp if the volume increases to 400.0ml and the pressure decreases to 2.000 atm?

    asked by Kalei on February 23, 2012
  62. Chemistry

    A 3.43 L flask is filled with carbon monoxide at 27 °C until the pressure is 8.31 atm. Calculate the total pressure after 2.09 moles of carbon dioxide has been added to the flask. (R=0.082 L-atm/K mol)

    asked by Brandon on May 4, 2012
  63. Physics

    Use the PV diagram of a system. The units for P and V are atmospheric pressure atm and liter L. Process A to B and B to C are straight lines on it. How much is the work done by the system from A to C in J? Given these coordinates:(volume on the x, pressure

    asked by Andrew Katz on July 30, 2013
  64. Physics

    In a diesel engine, the piston compresses air at 305 K to a volume that is 0.0624 of the original volume and a pressure that is 48.5 times the original pressure. What is the temperature of the air after the compression?

    asked by Z on January 6, 2009
  65. chemistry

    Calculate the value of the equilibrium constant (Kp) for the reaction shown, if F(g) was found to be 96.80 % decomposed at 1000 K when its initial pressure was 4.638 atm. The initial pressure of the reaction products is 0 atm. 2F(g) = F2(g)

    asked by andy on April 9, 2010
  66. College Physics

    If a certain amount of ideal gas occupies a volume 9.5 m3 with a pressure of 3.1 atm and temperature 5.4 oC on earth, what would be its volume on another planet, where the temperature is 5.3oC and the pressure is 7.4 atm ? The answer is in unit of m3

    asked by Desperate Student on March 26, 2016
  67. chemistry

    4. A container of gas has a volume of 3.5 L and a pressure of 0.8 atm. Assuming the temperature remains constant, what volume of gas would result if the pressure was 0.5 atm? A. 1.8 L B. 5.6 L C. 0.2 L D. 2.2 L My guess is B but I just want to double check

    asked by Hannah on August 15, 2013
  68. Student

    On a clear day at sea level, the partial pressure of N2 in air is 0.78 atm at 25 degres C. Under these conditions, the concentration of N2 in water is 5.3 x 10^-4 M. What is the partial pressure of N2 when the concentration in water is 3.5 x10^-4 M?

    asked by Student on February 17, 2016
  69. science chemistry

    A given mass of helium(gas)occupies a volume of 3,6m^3 at a pressure of 105 kPa.if the temperature remains constant,calculate volume of the gas if the pressure is decreased to 70 kPa.

    asked by melissa on June 14, 2015
  70. college chemistry

    please help! If the initial pressure of I2(g) is 1.738 atm, calculate the % decomposition of I2(g) when the reaction comes to equilibrium according to the balanced equation. The value of Kp at 1000 K is 0.254. The initial pressure of the reaction products

    asked by sparkle on October 5, 2010
  71. Physics

    The four tires of an automobile are inflated to an absolute pressure of 2.0*10^5 Pa. Each tire has an area of 0.024m^2 in contact with the ground. Determine the weight of the automobile. Pressure*area= force. There are four tires.

    asked by Sarah on May 10, 2007
  72. Chemistry

    the vapour pressure of a solution having 2g of solute X ( molar mass=32)in 100g of CS2(vapour pressure = 854 torr)is 848.9 torr. The molecular formula of solute is?

    asked by Swathi on May 25, 2011
  73. Chemistry

    On a clear day at sea level, the partial pressure of N2 in air is 0.78 atm at 25 degres C. Under these conditions, the concentration of N2 in water is 5.3 x 10^-4 M. What is the partial pressure of N2 when the concentration in water is 3.5 x10^-4 M?

    asked by Student on February 17, 2016
  74. physics

    Q:What happens to the pressure of particles in the container when it is heated.explain. Q:A pressure of 2200Kpa is exerted by the particles in the container on the wall of area 25cm2. find the force exerted by the particle.

    asked by saffa on December 10, 2011
  75. chemistry 106

    The pressure of 6.0 L of an ideal gas in a flexible container is decreased to one-half of its original pressure, and its absolute temperature is decreased to one-seventh of the original. What is the final volume of the gas?

    asked by Tanisha on March 1, 2010
  76. Chemistry

    A sample of nitrogen gas is collected overwater at a temperature of 23◦C. What is the pressure of the nitrogen gas if the atmospheric pressure is 744 mmHg? Answer in units of mmHg. Not sure of formula for this

    asked by teresa on May 7, 2015
  77. chem

    If the initial pressure of HD(g) is 2.270 atm, calculate the % decomposition of HD(g) when the reaction comes to equilibrium according to the balanced equation. The value of Kp at 727.0 °C is 0.26. The initial pressure of the reaction products is 0 atm.

    asked by BOB on September 30, 2011
  78. physical science

    The gas in a cylinder has a volume of 3 liters at a pressure of 106 kPa. The pressure of the gas is increased to 208 kPa. Assuming the temperature remains constant, what would the new volume be? = ....L?

    asked by laure on December 18, 2016
  79. CHEMISTRY

    IN A CERTAIN EXPERIEMT A SAMPLE OF HELIUM IN A VACUUM SYSTEM WAS COMPRESSED AT 25C FROM A VOLUME OF 6000.0ML TO A VOLUME OF 240.0ML WHERE ITS PRESSURE WAS FOUND TO BE 32.0 MM HG. WAHT IS THE ORIGINAL PRESSURE OF HELIUM? (P1V1)/T1 (P2V2)/T2 Change T to

    asked by TIFFANY on January 9, 2007
  80. Chemistry

    An oil whose density is 0.775g/mL was used in a open-end manometer to measure the pressure of a gas in a flask, as shown in figure (b). If the height of the oil column is 7.68cm and Pbar = 760.0mmHg. What is the pressure of the gas in the flask in mmHg?

    asked by Chris on November 18, 2011
  81. Chem

    Your spaceship has docked at a space station above Mars. The temperature inside the space station is a carefully controlled 24 ∘C at a pressure of 745 mmHg. A balloon with a volume of 414 mL drifts into the airlock where the temperature is -95 ∘C and

    asked by SOfia on March 23, 2017
  82. Chemistry

    A mixture of three gases has a total pressure of 1380 mm Hg at 25 degrees celsius. If the mixture contained 56 grams CO2, 3.04 mol CO and 9.03 X 10^23 atoms of Argon, the partial pressure of argon would be about? ok so first I did 56 CO2 X 1/44.01 = 1.27

    asked by Hannah on January 16, 2012
  83. chemistry

    Glycerin, C3H8O3, is a nonvolatile liquid. What is the vapor pressure of a solution made by adding 159 g glycerin to 338 mL H2O at 39.8oC? The vapor pressure of pure water at 39.8oC is 54.74 torr and its density is 0.992 g/cm3.

    asked by rose on October 5, 2016
  84. chemistry

    The valve between a 5 liter tank in which the gas pressure is 911.925 kPa and a 10 liter tank containing gas at 4560 torr is turned open and equilibrium is established at constant temperature. What is the final pressure in the two tanks in atmospheres?

    asked by laura on December 5, 2011
  85. Chemistry

    Let's say that you are asked to design an airbag for a car. You know that the bag should be filled with gas with a pressure higher than atmospheric pressure, say 828 mmHg at a temperature of 22.0 C . THe bag has a volume of 45.51. What quantity of sodium

    asked by Leslie on May 28, 2013
  86. chemistry

    A gas bubble with a volume of 1.0 mL originates at the bottom of a lake where the pressure is 3.00 atm. Calculate its volume when the bubble reaches the surface of the lake where the pressure is 695 torr , assuming that the temp doesn't change. I got 0.003

    asked by Anonymous on January 3, 2010
  87. Chemistry 111

    A gas occupies a volume of 256mL at a pressure of 250torr at 32 degrees Celsius. Calculate the pressure (in atmosphere)if the volume is reduced to 156mL and the temp is increased to 62 degrees Celsius. I really need the formula that I would be using. I am

    asked by Lotty on December 3, 2010
  88. Physics _ Please please help

    The cross-sectional area of the U-tube shown below is uniform and is equal to one square centimeter (1.00cm^2). One end is open to the atmosphere. Atmosphere pressure may be taken as P1=1.01 * 10^5 Pa. The other end of the U-tube is connected to a pipe in

    asked by Sonya on August 10, 2011
  89. chemistry

    A fixed quantity of gas at 27°C exhibits a pressure of 729 torr and occupies a volume of 5.70 L. (a) Use Boyle's law to calculate the volume the gas will occupy if the pressure is increased to 1.75 atm while the temperature is held constant. (b) Use

    asked by Chase on April 27, 2010
  90. chemistry

    A fixed quantity of gas at 27°C exhibits a pressure of 729 torr and occupies a volume of 5.70 L. (a) Use Boyle's law to calculate the volume the gas will occupy if the pressure is increased to 1.75 atm while the temperature is held constant. (b) Use

    asked by chase on April 30, 2010
  91. chemistry

    A fixed quantity of gas at 27°C exhibits a pressure of 729 torr and occupies a volume of 5.70 L. (a) Use Boyle's law to calculate the volume the gas will occupy if the pressure is increased to 1.75 atm while the temperature is held constant. (b) Use

    asked by chase on April 30, 2010
  92. Chemistry

    Could you show me where to start on solving this equation? The reaction in question will be carried out in a calorimeter. The volume of the chamber inside is 2.00 L. Experiment starts by evacuating the chamber to 0.00 kPa. Then oxygen gas is filled into

    asked by Amber on April 14, 2017
  93. Chemistry

    Could you show me where to start on solving this equation? The reaction in question will be carried out in a calorimeter. The volume of the chamber inside is 2.00 L. Experiment starts by evacuating the chamber to 0.00 kPa. Then oxygen gas is filled into

    asked by Amber on April 14, 2017
  94. Chemistry

    Could you show me where to start on solving this equation? The reaction in question will be carried out in a calorimeter. The volume of the chamber inside is 2.00 L. Experiment starts by evacuating the chamber to 0.00 kPa. Then oxygen gas is filled into

    asked by Amber on April 17, 2017
  95. Chemistry

    Each increase in pressure of 100 atm decreases the melting point of ice by about 1.0¡ÆC. Q. One possible explanation of why a skate moves smoothly over ice is that the pressure exerted by the skater on the ice lowers its freezing point and causes it to

    asked by KK on October 3, 2016
  96. Physics

    Pt. 1 Gas in a container is at a pressure of 2.3 atm and a volume of 6.1 m3. What is the work done on the gas if it expands at constant pressure to five times its initial volume? Answer in units of J My wrong answer: 56.12 Pt. 2: What is the work done on

    asked by Ray on October 2, 2012
  97. Physics

    Pt. 1 Gas in a container is at a pressure of 2.3 atm and a volume of 6.1 m3. What is the work done on the gas if it expands at constant pressure to five times its initial volume? Answer in units of J My wrong answer: 56.12 Pt. 2: What is the work done on

    asked by Ray on October 2, 2012
  98. science

    Which of the following would most likely cause rising air? A warm air and low pressure B cold air and low pressure C warm air and high pressure d cold air and high pressure

    asked by miki on March 25, 2012
  99. Chemistry

    For the following reaction at 600. K, the equilibrium constant, Kp is 11.5. PCl5(g) PCl3(g) + Cl2(g) Suppose that 3.314 g of PCl5 is placed in an evacuated 460. mL bulb, which is then heated to 600. K. (a) What would be the pressure of PCl5 be if it did

    asked by Anonymous on March 9, 2010
  100. Chemistry

    C2H5NO2 + 2H2O → 2CO2 + NH3 + 3H2 You begin with 1.25 × 10-2 moles of glycine and an excess amount of water that will allow the reaction to proceed completely to products. This is all in a vessel with a volume of 850 mls at 27°C. Assume that the vessel

    asked by sarah on November 20, 2014