1. Chemistry

    Identify the compound with the highest entropy. a. solid ice b. room temperature water c. gaseous water d. frozen water
  2. Chemistry

    If there are 25 mg of water in a typical drop of water, how many drops of water would react completely with 2 mmol of phenylmagnesium bromide? How do I set up the problem?
  3. science

    1.Describe how the hot water and the cold water moved when the divider was lifted. 2.Use your understanding of density to explain the motion of the water.
  4. CHEMISTRY

    IF 100.0G OF WATER AT 90'C IS ADDED TO 50.0G OF WATER AT 10'C, ESTIMATE THE FIBNAL TEMPATURE OF WATER. EXPLAIN YOUR REASONING. PLEASE HELP I DON'T GET IT AND I HAVE ANOTHER PROBLEM SIMILAR TO THIS
  5. Chemistry

    A student produced a volatile liquid experiment with the following results: Mass of flask, boiling water, foil cap, and unkown after cooling, g: 83.350 Mass of flask, boiling stone, and foil cap, g: 82.657 Water bath temperature: 95*C Barometric pressure:
  6. Chemistry Help Please

    Titration of a Sample of Household bleaches: The oxidizing agent in a household bleach is determined by placing 100 mL of distilled water in a 250 mL Erlenmeyer flask and adding 10 mL of the 10% (w/w) KI solution, swirling the contents of the flask to mix
  7. Math (can you provide me with the working and ans?

    A rectangular tank 28cm long and 18cm wide was filled with water to a dept of 7cm. When 12 marbles were added the level rose to 12cm. Find the average volume of the 12 marbles.
  8. Physics

    A cylinder contains the helium gas with a volume of 0.1 m3 at a pressure of 220 kPa. The gas is compressed to a volume of 0.02 m3. The process is adiabatic and the specific heat ratio of the gas is 1.66. Determine (a) the pressure in the cylinder after
  9. Math!! (repost) really need help!!

    A cone has a diameter of 24 in. and a height of 10in. What is the volume of s cone? use 3.14 as an approximation.. final answer in tenths - Im stuck between two answers: 94.25 because if I do 3 x 10 to find the volume. I say 3 because the diameter is 24
  10. science

    The solubility of sodium chloride is 36.0 g/100. ml of water, and the density of saturated NaCl solution is 1.202 g/mL.. I have 500. mL of a 1.00 M NaCl solution. If I boil it to the point of saturation, what is the final volume?
  11. Chemistry

    What is the molarity of a solution containing 1.23g of LiOH in enough water to give a final volume of 380ml? I know the MW of Li is 6.941, O is 15.9594 and H is 1.00794. Using this info the number of mols in 1.23g of LiOH is 0.05144
  12. Chemistry

    A sample of 40.0 mL of hydrogen is collected by water displacement at a temperature of 20 degrees Celcius. The barometer reads 751 torr. What is the volume of the hydrogen at STP (standard temperature and pressure)?
  13. Chemistry- dilution

    51.0 mL of a 1.20 M solution is diluted to a total volume of 248 mL. A 124-mL portion of that solution is diluted by adding 125 mL of water. What is the final concentration? Assume the volumes are additive.
  14. Chemistry

    In an experiment, a mixture of two gases occupies a volume of 3.00 L at a temperature of 22.5 degree centigrade. The mixture contains 14.0 g of water, 11.5 g of oxygen, and 37.3 g of nitrogen. Calculate the total pressure and the partial pressure of each
  15. Chemistry

    Can someone check my answers? Thanks. 1.) If you were involved in an acid rain monitoring project with several other samplers, why would it be important that all of you collect your samples on the same day and do the alkalinity tests within 24 hours? Acid
  16. chemistry

    - What fraction of an E coli cell is occupied by its DNA? How would I find the fraction? If I knew the volume of an E coli cell, would I divide that by the volume of DNA in an E coli cell? - A human cell is typically spherical with a diameter of 20
  17. chem

    calculate volume of excess KOH(aq) and the volume of 6.00M H2SO4(aq) to neutralize it
  18. Math

    what is the volume of a sphere that has the same diameter and height of a cylinder that is 24 cubic feet in volume?
  19. Earth science

    If the volume in a graduated cylinder is raised from 50ml to 51 ml, what is the objects volume?
  20. Bio Last

    Can someone help me find the definitions of respiratory tidal volume and cardiac stroke volume.
  21. physics

    what will the volume of a gas at 309K if its volume at 215K is 3.42 L? Assume the pressure is constant
  22. Math

    what is the volume of a sphere that has the same diameter and height of a cylinder that is 24 cubic feet in volume?
  23. chemistry

    a gas have a volume of 100.0 ml when the temperature is -123C. What will its volume be at 27C? i don't know how to do it. can you help me please?
  24. chemistry

    what is the concentration in percent volume of 60mL or methanol in a total volume of 500mL
  25. Chemistry

    A hot air balloon has a volume of 55,287 m3 at 60C, what is its volume at 20C?
  26. physics

    A gas of volume 2m^3 at 27C is heated to 327C at constant pressure. What is its new volume?
  27. physical

    V1=3m3,P1=1.2KPa T=const How much will be change P if A) volume reduced to 1.5 ,2 and 2.5 B) volume increase to 1.5 ,2 and 2.5
  28. chmistry

    the volume of a sample of helium is 4.5ml at 20.0c and 203.0kpa. what will its volume be in the figure?
  29. chemistry

    What is the volume of dry O2 gas at STP, if it had a volume of 5.00 L at 103 kPa and 300 K?
  30. Chem

    A gas at pressure 912 mm of hg has volume of 450 cm3 what will be volume at 0.4 atm
  31. Chemistry

    A sample of O2 (g) occupies a volume of 3.0 L at 700 mmHg, calculate its volume at 375mmHg.
  32. ALGEBRA

    THE VOLUME OF A CONE IS 20 PI CUBIC METERS. WHAT IS THE VOLUME OF A CYLINDER HAVING THE SAME BASE AND SAME HEIGHT?
  33. Chemistry

    what volume of 0.1M HCl would be needed to neutralize 0.35M NaOH to a 100ml volume?
  34. Chemistry

    The volume of a gas is 76cm3 at 27c and 800mm mercury pressure.what is the volume at s.t.p
  35. physics

    A gas of volume 2m^3 at 27C is heated to 327C at constant pressure. What is its new volume?
  36. Science

    An unknown substance has a volume of 25 mL. It is placed into a different container and its volume changes to 50 mL. What happened? Is it a change in state?
  37. Maths

    A container in the shape of a right circular cone with vertex angle a right angle is partially filled with water. a) Suppose water is added at the rate of 3 cu.cm./sec. How fast is the water level rising when the height h = 2cm.? b) Suppose instead no
  38. Chemistry

    Objectives To determine the molecular weight of a volatile liquid. Discussion [This laboratory exercise was adapted from one in Beran and Brady's Laboratory Manual for General Chemistry , John Wiley & Sons, 1982] The Dumas Method for determining the
  39. Physics

    The makers of a certain automobile advertise that it will accelerate from 15 to 50 mi/hr in high in 13 sec. Compute (a) the acceleration in ft/ sec2, and (b) the distance the car travels in this time, assuming the acceleration to be constant.
  40. chemistry

    what is the volume at STP of a sample of CO2 that has a volume of 75.0 ML at 30c and 680 mm Hg
  41. chem

    A gas at 61°C occupies a volume of 0.67 L. At what Celsius temperature will the volume increase to 1.12 L?
  42. geometry

    The volume of a cone is 180cm^3 , if the radius and the height are 3 times more, what would be the volume ???
  43. chemistry

    calculatethe volume of o2 and volume of al needed photon combusion on 18 kg at carbon
  44. chemistry

    At 7.0 degrees C, the volume of a gas is 49ml. At the same pressure, its volume is 74 mL at what temperature?
  45. chemistry

    The volume of a gas is 435ml at 25c and at 740mmHg.What would be its new volume at STP?
  46. chemistry

    A sample of gas has a volume of 1.30 L at STP. What is the temperature in °C if the volume is 13.0 L at 2.00 atm?
  47. geometry

    Find the ratio of surface area to volume for a cube with a volume of 64 in^3.
  48. chemistry

    Use the molar volume to find the volume, in liters, of 6.40g of O2 at STP.
  49. physics

    A lead ball has a volume of 94.3 cm3 at 19.3°C. What is the change in volume when its temperature changes to 34.3°C?
  50. math

    the volume of a cylinder is 54cm cube.calculate the volume of the cone.
  51. chem

    a volume of 20. l of O2 os warmed from -30c to 85c what is the new volume if the pressure is kept constant
  52. Math, volume

    How do you find the volume inside the cylinder but outside the sphere? H=12cm.
  53. chemistry

    the volume of a certain bacterial cell is 1.44 μm3. what is the volume of 1 x 10 ^5 cells in liters
  54. Chemistry

    A sample of gas has a volume of 1.30 L at STP. What is the temperature in °C if the volume is 13.0 L at 2.00 atm?
  55. science

    what is the volume of 10 galons???? That's easy. It has a volume of 10 gallons. Do you want it converted to another unit?
  56. Physics

    A lead ball has a volume of 94.3 cm3 at 19.3°C. What is the change in volume when its temperature changes to 34.3°C?
  57. chem

    A gas at 61°C occupies a volume of 0.67 L. At what Celsius temperature will the volume increase to 1.12 L?
  58. Math

    Volume of a cylinder is 15 cubic inches. If all the dimensions are multiplied by 2.7 what is the new volume?
  59. physics

    An ideal gas with r(Gama) = 1.5 occupies a volume of 2.0 L. The gas expands isothermally to a volume of 3.0 L. Alternatively, the gas reaches the same final state by first adiabatically expanding to the final volume then heating isochorically to the final
  60. physics

    An ideal gas with r(Gama) = 1.5 occupies a volume of 2.0 L. The gas expands isothermally to a volume of 3.0 L. Alternatively, the gas reaches the same final state by first adiabatically expanding to the final volume then heating isochorically to the final
  61. physics

    An ideal gas with r(Gama) = 1.5 occupies a volume of 2.0 L. The gas expands isothermally to a volume of 3.0 L. Alternatively, the gas reaches the same final state by first adiabatically expanding to the final volume then heating isochorically to the final
  62. chemistry

    What is the percent by volume of isopropyl alcohol in a solution that contains 24 mL of isopropyl alcohol in 1.1 L of water? this the other one i need help with and thanks for the last help
  63. Chemistry

    If you have 200ml of 25% aqueous solution of ethanol, what volume of ethanol and water are in the solution?
  64. Chemistry

    I had to perform an experiment for rate of reaction. The point of the experiment was to show how changes in reactant concentration, temperature, and catalyst presence can affect the rate of a reaction. The reaction that we studied was H2O2 + 2I^- + 2H^+
  65. Chem

    I need help I don't get this 1. Since the gas in your graduated cylinder is a mixture of butane and water vapor, you must determine the partial pressure of the butane, Pbutane, alone. To do this, consult a reference and record the partial pressure of the
  66. Chemistry

    Determine the volume of nitrogen gas at a pressure of 3.00 atm if it had a volume of 400.0 mL at STP.
  67. Chemistry

    Calculate the volume of a gas @ 20 degrees C and 640 mm Hg if it's volume is 1500 mL when collected @ STP.
  68. Math

    The volume of a cylinder is 24pi cubic feet. What is the volume of a cone having same base and same height?
  69. Geometry

    how do you find the volume and surface area of a square pyramid and sphere when you are given only a volume of 1200?
  70. calc volume

    find the volume of a solid formed when the region bounded by y = e^(x-3) and y = 1 + ln(x) is rotated about the y-axis.
  71. physics

    At a temperature of 0° C, the mass and volume of a fluid are 742 kg and 1.10 m3. The coefficient of volume expansion is 1.36 10-3(° C)−1
  72. chemistry

    A certain volume of a gas at 298kelvin is heated such that its volume and pressure are now four times their original value.What is the new tewperature?
  73. chemistry

    A sample of a gas in a ridge container at 30.0 c has a volume of 2.00L. If its temp increased to 40.0 C What will the new volume be?
  74. Chemistry

    A 3.0 L volume of methane gas is cooled from 59.4°C to 30.0°C. If the pressure remains constant, what is the final volume (L)?
  75. chemistry

    a sample of air has a volume of 140.0 mL at 67 degrees C. At what temperature will its volume be 50.0 mL at constant pressure?
  76. Chemistry

    A sample of gas has a volume of 6.20 L at 23 degrees celsius at a pressure of 1.90 atm. What is its volume at STP?
  77. Maths

    A cylinder has volume 12cm^3. What will be the volume of a cone with the same base area and perpendicular height?
  78. Chem

    A sample of gas has a volume of 8.00 L at 20.0 degrees celcius and 700. torr. What will be it's volume at STP?
  79. chemistry

    A given mass of gas occupies a volume of 449 mL at 25°C and 740 mmHg. What will be the new volume at STP?
  80. math

    the volume V of a right circular cone is V=(1/3)π r^2 h. If the height is twice the radius, express the volume V as a function of r.
  81. geometry

    a snow globe has a diameter of 6 inches.find its exact volume.then approximate its volume using 3.14 for [pi]
  82. Physics (one more)

    A lead ball has a volume of 94.3 cm3 at 19.3°C. What is the change in volume when its temperature changes to 34.3°C? Someone on here has already answered this but it was wrong!
  83. chemistry

    A certain volume of a gas at 298k is heated such that its volume and pressure are now four times their original value.what is the new temperature
  84. math

    if the height is 3cm and the base of the area is 4cm 2 what is the volume? and is the lil 3 the sign for volume?
  85. chemistry

    A certain volume of a gas at 298k is heated such that its volume and pressure are now four times their original value.what is the new temperature?
  86. chemistry

    a sample of air has a volume of 140.0 mL a 67 degrees C. at what temperature would its volume be 50.0 mL at constant pressure/
  87. Math

    Explain what happens to the volume of a prism when its dimensions are tripled. Answer: Is the volume going to be 9 times larger
  88. chemistry

    A 1.00 L volume of 0.609 M HNO3 is condensed to a volume of 0.750 L, calculate the molarity (M) of H+ in the new solution
  89. Tax Accounting

    Mike purchases a heavy-duty truck (5-year class recovery property) for his delivery service on April 30, 2010. The truck is not considered a passenger automobile for purposes of the listed property and luxury automobile limitations. The truck has a
  90. Calculus

    1) If y = 2x3 - 4x and dx, dt equals 4 , find dy/ dt when x = 1. 2) The area A = πr^2 of a circular water ripple changes with the radius. At what rate does the area change with respect to the radius when r = 4ft? 3) A rectangular box has a square base
  91. physics

    Assume that 10 g of steam is added to 100 g of water initially at 19°C. The water is inside an aluminum cup of mass 35 g. The cup is inside a perfectly insulating calorimetric container that prevents heat flow from the outside environment. Find the final
  92. physics

    1. Assume that 10 g of steam is added to 100 g of water initially at 19°C. The water is inside an aluminum cup of mass 35 g. The cup is inside a perfectly insulating calorimetric container that prevents heat flow from the outside environment. Find the
  93. Technology

    12. A clay model of a new automobile design would be considered a a. wireframe model b. surface model c. mock-up d. prototype C
  94. chem

    Does density of a substance change when the volume of the substance change? For example, if I had 10 mL of water and it has the density of 1g/mL will the density change if I had 20 mL of water instead?
  95. federal tax

    Carl bought a heavy-duty truck (5-year class recovery property) for his business service on April 30. The truck is not considered a passenger automobile for purposes of the listed property and luxury automobile limitations. The truck has a depreciable
  96. Algebra

    Chart with a month bill for water which is $35.00. Question is Lynne has a watering can that holds 16 cups of water, and she fills it half full. Then she waters her 15 plants so that each plant gets the same amount of water. How many cups of water will
  97. algebra

    The volume V of a gas varies inversely as the pressure P on it. If the volume is 250 cm3 under a pressure of 35 kg/cm3, solve for the pressure applied to have a volume of 180 cm3. Be sure to define your variables, find your constant variable, construct
  98. English

    I forgot to include these other sentences. Are the alternatives possible? Thank you very much. 1) Machinery was mainly driven (powered?) by water. 2) The new inventions in cloth-making took place because the was a rise in population and consequently an
  99. Science

    how is the electricity in our light bublbs formed. Ex. buring coal?????? Electricity is attracted to the wires of the light so it is attracted to the bulb Huh? Electricity is generated by spinning the rotor inside a generator. the rotor (called this
  100. science help

    How would planting trees most affect the water cycle? decrease in evaporation increase in transpiration movement of water to new locations water pollution is it b