1. Chemistry

    Steam is compressed reversibly to liquid water at the boiling point 100C. The heat of vaporisation of water at 100C and 1.01325 bar is 2258Jg^-1. Calculate for one mole of water in term of work done(w),q,H and U for the process

    asked by Charles on April 8, 2012
  2. Calculus(answer needed immediatly,thanks)

    A paper cup has the shape of a cone with height 8cm and radius 3cm at the top. Water is being poured into the cup at the rate of 2cm3/s. How fast is the water level rising when the water is 6cm deep?

    asked by Mehak on March 13, 2011
  3. math - surface area and volume

    A cylindrical bucket with base 15 cm with water upto a height of 20 cm a heavy iron spherical ball of radius 9cm is drop into the bucket to submerge completely in the water. Find the incrrase in the level of water.

    asked by s.yashraj on February 1, 2016
  4. chemistry

    water has a molar mass weight of 18 grams that's 18 grams per mole you drink a 2 liter bottle of water everyday and you are such a smarty that you you know that 1mlof h2o weighs 1 gram can you tell me how many moles of water you consume a day

    asked by Anonymous on November 5, 2010
  5. calculus

    A trough is 16 ft long and its ends have the shape of isosceles triangles that are 5 ft across at the top and have a height of 1 ft. If the trough is being filled with water at a rate of 11 ft3/min, how fast is the water level rising when the water is 7

    asked by Jack on October 13, 2011
  6. algebra

    You are standing 14 feet from the edge of a cylindrical water tank and 26 feet from a point of tangency. The tank is 10 feet tall. What is the volume of the tank in cubic feet?

    asked by Sarah on March 13, 2011
  7. chemistry

    Several reactions are carried out using AgBr, a cream-colored silver salt for which the value of the solubility product constant, Ksp, is 5.0 x 10-13 at 298 K. a) Calculate the value of [Ag+] in 50.0 mL of a saturated solution of AgBr at 298 K. b) A 50.0

    asked by jack on March 14, 2015
  8. Chemistry

    A flask was immersed in 350 g of water at 25 degrees C. Steam at 100 degrees C was passed into this flask, and eventually condensed into water at 100 degrees C. If the temperature of the water surrounding the flask was raised to 70 degrees C, how many

    asked by Amanda on April 19, 2014
  9. Intro to Accounts

    Hello, I really don't know where to begin Travis Fortney, an architect, opened an office on April 1, 2010. During the month, he completed the following transactions connected with his professional practice: a.Transferred cash from a personal bank account

    asked by Ann Marie Moiten on September 21, 2012
  10. chimestry

    A sample of carbon dioxide occupies a volume of 1.50L at 165kPa pressure. What pressure would the gas exert if the volume was increased to 2.5L?

    asked by nora on May 16, 2017
  11. Math

    There are boxes without tops. Find the box with the least surface area for a given volume, V. Make a diagram (if you can). Hint: Volume=x^2y Area=x^2+4xy

    asked by Gary on February 22, 2014
  12. chemistry

    An ideal gas in a sealed container has an initial volume of 2.45 L. At constant pressure, it is cooled to 23.00 °C where its final volume is 1.75 L. What was the initial temperature?

    asked by Doll on May 6, 2013
  13. Math

    I am a bit confused. I have to find the volume of a triangular prism. B=1/2bh=1/2 (8x3)=12ft Now I have to find the volume how would I do this with the numbers provided

    asked by Patrick on February 21, 2018
  14. chemistry

    A sample of helium gas has a volume of 325L at 25C and at 5atm. At what temperature the gas can be compressed at 50atm to a volume of 125L?

    asked by twynna on March 10, 2011
  15. Math

    Three cubes of volume 343 cubic cm are joined end to end.find surface area and volume of the resulting cuboid.

    asked by Roshan on May 25, 2018
  16. chemistry

    A sample of helium gas has a volume of 325L at 25C and at 5atm. At what temperature the gas can be compressed at 50atm to a volume of 125L?

    asked by twynna on February 13, 2011
  17. Chemistry

    At standard temperature a gas has a volume of 275ml if the temperature is increased to 130C buit the pressure is held constant what is the new volume?

    asked by Karla on April 19, 2011
  18. Geometry

    The surface areas of two similar figures are given. The volume of the largwe figure is given. Find the volume of the smaller figure if the SA= 25 cm SA= 36cm and the V= 216cm?

    asked by Elizabeth on March 22, 2011
  19. chemistry

    A sample of helium gas has a volume of 325L at 25C and at 5atm. At what temperature the gas can be compressed at 50atm to a volume of 125L?

    asked by n/a on March 11, 2011
  20. ashworth

    a gas has weight of 5 pounds and a volume of 100 cubic feet.What is the specific volume of this gas? 0.05 ft3/lb 5ft3/lb 20ft3

    asked by simon on December 13, 2017
  21. chemistry

    An ideal gas in a sealed container has an initial volume of 2.50 L. At constant pressure, it is cooled to 14.00 °C where its final volume is 1.85 L. What was the initial temperature?

    asked by Anonymous on November 7, 2012
  22. chemistry

    A sample of helium gas has a volume of 325L at 25C and at 5atm. At what temperature the gas can be compressed at 50atm to a volume of 125L?

    asked by twynna on February 20, 2011
  23. chemistry

    A sample of helium gas has a volume of 325l at 25c and at 5atm. At what temperature the gas can be compressed at 50atm to a volume of 125L?

    asked by twynna on February 9, 2011
  24. chemistry

    the maximum volume if Ziploc sandwich is 0.5 L at the pressure of 1 atm. use the gas law, calculate the pressure in the bag from the above volume of co2.

    asked by mariah on March 10, 2013
  25. chemistry

    A basketball with a volume of 3.50 Liters is left in a car when the temperature is 298 K. What will the volume of the ball be as the car heats up to 305 K during the day? (2.0 p

    asked by Anonymous on April 17, 2012
  26. chem

    a gas volume has of v1=450ml. if the temp is held constant, what volume would gas occupy if the pressure p2=2p1? omg i cant figure anything out!!!!!!!!

    asked by amie on June 4, 2008
  27. Math ASAP

    Volume of Prisms: Volume: 150 cubic inches Top Area: 10 square inches What is the height? {5-sided prism}

    asked by Omar on August 20, 2013
  28. geometry

    10. In cubic meters, how much greater is the volume of a cylinder with height 19 m and a radius 16 m than the volume of a square prism with height 19 m and base 16 m on a side?

    asked by Anonymous on June 2, 2011
  29. chemistry

    What volume of 10 percentage (mass/volume) solution of Na2CO3 will be required to neutralise 100mL of HCl sution containing 3.65g of HCl.

    asked by Raveena on March 22, 2018
  30. Math

    Describe a strategy you can use to estimate then find the volume of this textbook.textbook measures 21cm by 28 cm and 2.5 thick.what problems may you have finding the volume

    asked by Tam on February 16, 2016
  31. chemistrty

    A sample containing 7.20g O2 gas has a volume of 33.0L Pressure and temperature remain constant. What is the volume after 4.00g He is added to the O2 gas already in the container?

    asked by nicole on April 8, 2011
  32. Chemistry

    What is the volume of HCl stock (37%) you must add in order to make up a 10.0% diluted HCl solution, if the final volume to be achieved is 600mL?

    asked by Kayden on May 27, 2013
  33. Physics

    A fixed mass of gas of volume 600 cm cube at a temperature of 27 C is cooled at constant pressure to a temperature of 0C.what is the change in volume

    asked by Rilwan on February 18, 2018
  34. science

    A balloon with an initial volume of 2.8L at a temperature of 296K is warmed to 375K . What is its volume at the final temperature? (Assume constant pressure.)

    asked by michelle on October 22, 2012
  35. physics

    - A copper cylinder is initially at 20.0oC. At what temperature will its volume be 0.15% larger than it is at 20.0oC? Take: ƒÒcofficient of thermal expansion of volume for cu= 5.1x10-5 /C

    asked by Janaiby on May 28, 2013
  36. geometry

    Two similar rectangular prisms have a scale factor of 4:9. The volume of the smaller prism is 60 cm3. Find the volume of the larger prism.

    asked by hello on July 16, 2010
  37. Maths

    A right circular cone of base radius 5 cm and depth 20 cm is held with its vertex downwards. If water is leaking through a small hole in the vertex at the rate of 8 cm^3/s, find the rate of change of the water level in the cone when the radius of the water

    asked by Mary on January 7, 2017
  38. physics

    A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the

    asked by caroline on March 28, 2012
  39. physics

    A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the

    asked by cassidy on March 28, 2012
  40. Physics

    A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the

    asked by cassidy on March 28, 2012
  41. physics

    A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the

    asked by nick on March 28, 2012
  42. physics

    A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the

    asked by carly on March 28, 2012
  43. Physics

    A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the

    asked by kari on March 28, 2012
  44. physics

    A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the

    asked by jack on March 28, 2012
  45. physics

    A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the

    asked by cassidy on March 28, 2012
  46. physics

    whn a body hanging frm a spring balance is immersed in water it floats in water just below the surface of water & shows 100g loss in its weight 1-wht is thw weight of body in water? 2-wht is thw weight of body in air 3-wht is upthrust on the body? 4-wht is

    asked by Riya sood on September 17, 2015
  47. science and technology

    whn a body hanging frm a spring balance is immersed in water it floats in water just below the surface of water & shows 100g loss in its weight 1-wht is thw weight of body in water? 2-wht is thw weight of body in air 3-wht is upthrust on the body? 4-wht is

    asked by raman on January 8, 2016
  48. science

    A sample of 8 grams of NaOH is dissolved into 599 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then poured into 1.68 gallons of water. (You may assume that the two volumes can be added.) What is the concentration of NaOH in the

    asked by Susan on May 13, 2014
  49. Chemistry

    A sample of 8 grams of NaOH is dissolved into 599 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then poured into 1.68 gallons of water. (You may assume that the two volumes can be added.) What is the concentration of NaOH in the

    asked by Susan on May 13, 2014
  50. Chemistry

    A sample of 6.41 grams of NaOH is dissolved into 675 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then poured into 2.28 gallons of water. (You may assume that the two volumes can be added.) What is the concentration of NaOH in the

    asked by Scott on March 23, 2011
  51. Chemistry

    A sample of 5.61 grams of NaOH is dissolved into 627 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then poured into 2.16 gallons of water. (You may assume that the two volumes can be added.) What is the concentration of NaOH in the

    asked by Anonymous on November 23, 2015
  52. Chemistry

    Calculate how many moles of Na2S2O3 must be added to dissolve 0.020 mol AgBr in 1.0 L of water at 25°C (assume constant volume). AgBr(s) ↔ Ag+(aq) + Br−(aq) Ksp = 3.3 x 10^−13 Ag+(aq) + 2S2O32−(aq) ↔ [Ag(S2O3)2]3−(aq) Kf = 2.0 x 10^13 (1)

    asked by bill on February 27, 2017
  53. Chemistry

    A sample of 9.4 grams of NaOH is dissolved into 693 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then poured into 2.37 gallons of water. (You may assume that the two volumes can be added.) What is the concentration of NaOH in the

    asked by May on October 4, 2010
  54. chemistry

    Calculate the theoretical amount of CaCl2 that would be required to change the temperature of 50 mL of water from from temperature 20 degrees Celsius to 45 degrees Celsius. Remember that the heat lost during the dissociation is equal to the heat gained by

    asked by Pat on November 6, 2010
  55. PHYSICS help please!!!!!!!!!!

    At a nuclear power plant water at 8°c from a lake is used in a heat exchanger to condense spent steam at a temperature of 120°c,to water at 85°c before it is recycled to the reactor. If the cooling water returns to the lake at a temperature of 19°c,how

    asked by Riana on April 1, 2013
  56. Chemisrty

    Calculate the theoretical amount of CaCl2 that would be required to change the temperature of 50 mL of water from from temperature 20 degrees Celsius to 45 degrees Celsius. Remember that the heat lost during the dissociation is equal to the heat gained by

    asked by sakura_09 on February 23, 2010
  57. physics

    At a nuclear power plant water at 8°c from a lake is used in a heat exchanger to condense spent steam at a temperature of 120°c,to water at 85°c before it is recycled to the reactor. If the cooling water returns to the lake at a temperature of 19°c,how

    asked by Riana on April 1, 2013
  58. physics

    At a nuclear power plant water at 8°c from a lake is used in a heat exchanger to condense spent steam at a temperature of 120°c,to water at 85°c before it is recycled to the reactor. If the cooling water returns to the lake at a temperature of 19°c,how

    asked by Riana on April 1, 2013
  59. PHYSICS

    At a nuclear power plant water at 8°c from a lake is used in a heat exchanger to condense spent steam at a temperature of 120°c,to water at 85°c before it is recycled to the reactor. If the cooling water returns to the lake at a temperature of 19°c,how

    asked by Riana on April 1, 2013
  60. Physics

    A hand-pumped water gun is held level at a height of 0.85 m above the ground and fired. The water stream from the gun hits the ground a horizontal distance of 6.9 m from the muzzle. Find the gauge pressure of the water gun's reservoir at the instant when

    asked by Jake on December 9, 2011
  61. Calculus

    An open top bos with a square base is to be constructed from 192 sq ft of material. What should be the dimensions of the box if the volume is to be a maximum? What is the maximum volume?

    asked by Derek on October 30, 2012
  62. Physics

    The volume of a fixed mass of a gas is 200cm cube at 27 degrees celcius.calculate its temperature when the volume is reduced to 1/2 its original at the same temperature

    asked by Nimi on April 17, 2016
  63. Chemistry

    A gas has a volume of 500 mL at a temperature of -45.0°C. What volume will the gas occupy at 30.0°C? Show your work. What equation should I use for this one? Sorry but my allergies have me feeling drained. Where should i start on this one?

    asked by bubble dragon on February 10, 2016
  64. Chemistry

    A given volume of nitrogen, N2, rewuired 68.3 s to effuse from a hole in a chamber. Under the same conditions, another gas required 85.6 s for the samw volume to effuse. What is the molecular mass ?

    asked by Anonymous on March 4, 2010
  65. Chemistry

    A flexible plastic container contains 0.833 g of helium gas in a volume of 18.3 L. If 0.203 g of helium is removed at constant pressure and temperature, what will be the new volume?

    asked by Anonymous on May 30, 2016
  66. Chemistry

    A flexible plastic container contains 0.833 g of helium gas in a volume of 18.3 L. If 0.203 g of helium is removed at constant pressure and temperature, what will be the new volume?

    asked by Anonymous on May 30, 2016
  67. Geometry

    Two similar pyramids have laterl area 8ft^2 and 18ft^2. The volume of the smaller pyramid is 32ft^3. Find the volume of the larger pyramid.

    asked by George on September 30, 2013
  68. chem

    At standard temperature, a gas has a volume of 345 mL. The temperature is then increased to 124◦C, and the pressure is held constant. What is the new volume? Answer in units of mL

    asked by reis on May 31, 2014
  69. chemistry

    A sample of gas weighing 9.0 (g) at a pressure of 1 atm occupies a volume of 12.3 L. If the pressure is doubled,what is the resulting volume? (Assume constant temperature)

    asked by Dakota on October 18, 2010
  70. math

    A gas has weight of 5 pounds and a volume of 100 cubic feet,What is the specific volume of the gas? 0.05ft/sup>/lb 5ft3/lb 20ft3/lb 100ft3/lb

    asked by simon on December 13, 2017
  71. chemistry

    A sample of a gas occupies a volume of 1158 mL at 59ºC and 0.76 atm. What would be the new volume if temperature decreases to 40ºC and pressure increases to 1.40 atm?

    asked by Chris on November 17, 2010
  72. Chemistry

    At 10 degree Celsius a sample of carbon dioxide gas has a volume of 25.5 mL under pressure of 758 mmHg. What would the volume of the CO2 sample be at STP?

    asked by Amber on November 6, 2010
  73. Chemistry

    a sample of gas is warmed from 15.o degrees celsius to 45.o celcius at a constant pressure. its initial volume is 1.75 liters. what is the final volume of gas?

    asked by Adina on May 3, 2010
  74. Chem

    A sample of nitrogen (N2) gas has a volume of 250ml at 30 degrees C and a pressure of 745mmHg. What is the volume of the nitrogen at STP? I got 22 liters in significant figures is this right. thank you.

    asked by Lindsay on November 24, 2010
  75. Chemistry 101

    A volume of 20.0 mL of a 0.140 M HNO3 solution is titrated with 0.850 M KOH. Calculate the volume of KOH required to reach the equivalence point.

    asked by Caitlyn on March 10, 2018
  76. Chem 104

    If a 5.0L volume of O2 (g) is at 1.0 atm, if we hold the temperature and molar amount of O2 constant how many psi of pressure does this amount of O2 exert if the volume it is allowed to take up is decreased to 2.0L?

    asked by Kelly on May 23, 2013
  77. CHEM

    If a 5.0L volume of O2 (g) is at 1.0 atm, if we hold the temperature and molar amount of O2 constant how many psi of pressure does this amount of O2 exert if the volume it is allowed to take up is decreased to 2.0L?

    asked by Kelly on May 23, 2013
  78. physical science

    An oxygen gas tank has a volume of 8 L and a pressure of 1500 N/m2. If the temperature decreases from 2500 K to 2000 K and its volume increases to 24 L, what is its final pressure?

    asked by Samantha on December 26, 2011
  79. Physics

    A sample of CO2 occupies a volume of 3.50l at 125 kPa pressure,What pressure would the gas exert if the volume was decreased to 2.00l?

    asked by Sekou on February 3, 2017
  80. chemistry

    A sample of chlorine has a volume of 2.5 L when the temperature is 84.1 degC. Assuming that the pressure is constant, at what temperature will the volume be 1750 mL? (Express your answer in Kelvins.)

    asked by zach on March 29, 2008
  81. Geometry

    The slan heights of two similar pyramids are in the ratio 1:5. The volume of the smaller pyramid is 60m^3. What is the volume in cubic meters of the larger pyramid?

    asked by George on September 30, 2013
  82. geometry

    The side lengths of two different cubes are 36 cm and 45 cm. What is the ratio of the volume of the smaller to the volume of the larger (in simplest form)? Note: These cubes are not drawn to scale.

    asked by Anonymous on October 14, 2010
  83. chem

    What is the volume occupied by 0.118mol of Helium gas at a pressure of 0.97atm and a temperature of 305k? Would the volume be different if the gas was Argon(under the same identical conditions)?

    asked by gilard on November 2, 2015
  84. chemistry

    If the volume is 226 L at 1.7 atm, find the volume at 2.8 atm. Assume the temperature and amount of gas remain constant. Answer in units of L.

    asked by teresa on May 6, 2015
  85. Algebra1A

    A box in the shape of a rectangular prism has a volume of 56 cubic inches. If the length of each side is multiplied by 2, what will be the approximate volume of the resulting box?

    asked by Janelle on July 10, 2010
  86. The polythecnic Ibadan

    The volume of a fixed mass of a gas in a cylinder at constant temperature is 300cm,when the pressure is 900mmHg.calculate the new volume when the pressure is 600mmHg.

    asked by Akanho jamiu Adeoye on August 20, 2015
  87. Science

    when working with the particle theory, for which changes of state does the volume increase? and Decrease? volume changes greatly when going to the gas state. what part of the system is missing

    asked by tesa on February 14, 2007
  88. chemistry

    The volume of a weather balloon increases as the balloon rises in the atmosphere. Why doesn’t the drop in temperature at higher altitudes cause the volume to decrease?

    asked by terry on March 4, 2008
  89. wwhs

    An oxygen gas tank has a volume of 8 L and a pressure of 1500 N/m2. If the temperature decreases from 2500 K to 2000 K and its volume increases to 24 L, what is its final pressure?

    asked by luis on September 28, 2010
  90. chemistry

    At standard temperature, a gas has a volume of 312 mL. The temperature is then increased to 115◦C, and the pressure is held constant. What is the new volume? Answer in units of mL

    asked by Anonymous on February 22, 2013
  91. chemistry

    A sample of argon gas occupies a volume of 950 mL at 25.0°C. What volume will the gas occupy at 50.0°C if the pressure remains constant?

    asked by lara on June 13, 2010
  92. physics

    a piece of wood of volume 200cm3 and density of 1.05gm/cm3. what volume of wood would remain above the surface of the liquid

    asked by nekunj on October 5, 2017
  93. Chemistry

    If a sample of gas occupies a volume of 2.50 liters at 25.0 degrees C, would the volume be larger or smaller if the temperature drops to -5.0 degrees C?

    asked by Janette on April 21, 2008
  94. CHEMISTRY

    AMMONIA GAS OCCUPIES A VOLUME OF 5.00 L AT 4DEGREES C AT 760 TORR. FIND ITS VOLUME AT77DEGREES C AND 800 TORR

    asked by CHEM CHEM on July 8, 2010
  95. Phy.Chem

    Need some help :) Thanks! A sample of a glass occupies a volume of 525 ml at 625 mm Hg. At constant temp, what will be the new volume when the temp changes to the ff: a.) 1.5 atm b.) 455 mm Hg

    asked by Andy on August 2, 2016
  96. College Physics

    A monatomic ideal gas with a pressure of 1.39x10^5 Pa and has a volume change of 260 L to a volume of 39.0 L. the second pressure is 3.28x10^6. How much work is done?

    asked by Kyle on December 8, 2011
  97. Chemistry

    a sample of gas has the pressure of 1120 mmhg and volume of 2.00 L. if the pressure is changed to 0.155 atm calculate the new volume

    asked by erica on November 29, 2011
  98. chemistry

    A helium-filled balloon has a volume of 2.83 L at 30 ◦ C. The volume of the balloon decreases to 2.35 L after it is placed outside on a cold day. What is the outside temperature in K? Answer in units of K?

    asked by Kellie on March 27, 2012
  99. Chemistry

    A gas occupies a volume of 140 mL at 35 degrees celcius and 97 kPa. What is the volume of the gas at STP? Please show the work.

    asked by Maria on February 24, 2010
  100. calculus

    Find the equation of a cubic function that gives you the surface area of the cans given a set volume. The set volume is 300ml

    asked by Emily on October 17, 2010