1. chem

    1.Pippete 20ml of 0.1M acetic acid and 20ml of 0.1M NaOH into a 100ml beaker (Remember that the final volume of this solution is the sum of the volumes of the acetic acid and NaOH solutions that have been mixed) 2. Pippete 20ml of 0.1 acetic acid into

    asked by tomi on April 26, 2009
  2. Physics

    a) Family Smith has already installed PV in their house. Now, they also want to cover their needs for warm water with solar energy. For this, they consider having a solar thermal water heating system. Considering that the need for warm water is 100L/day,

    asked by youlifex on October 24, 2013
  3. physics

    A sample of gas at P = 1123 Pa, V = 1.41 L, and T = 291 K is confined in a cylinder a) Find the new pressure if the volume is reduced to half of the original volume at the same temperature. b) If the temperature is raised to 391 K in the process of part

    asked by maria on December 27, 2011
  4. Chemistry

    When 0.5963g of a sample containing NaNO2 and some inert material is allowed to react with excess HSO3NH2, the volume of N2 gas produced is measured. The volume of N2 gas corrected to 298.15K and 100kPa is calculated to be 0.146L. Find the mass percent of

    asked by Derek on May 25, 2011
  5. Chemistry

    When 0.5963g of a sample containing NaNO2 and some inert material is allowed to react with excess HSO3NH2, the volume of N2 gas produced is measured. The volume of N2 gas corrected to 298.15K and 100kPa is calculated to be 0.146L. Find the mass percent of

    asked by SadFace on May 25, 2011
  6. Physics

    A tin can is filled with water to a depth of 37 cm. A hole 11 cm above the bottom of the can produces a stream of water that is directed at an angle of 32 degrees above the horizontal. Find the range of this stream of water. x=? Find the maximum height of

    asked by Adam Walsh on March 29, 2013
  7. Math

    A conical water tank with vertex down has a radius of 10 feet at the top and is 22 feet high. If water flows into the tank at a rate of 30 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 14 feet deep? I have tried

    asked by Sarah on October 5, 2014
  8. Science

    A tin can is filled with water to a depth of 37 cm. A hole 11 cm above the bottom of the can produces a stream of water that is directed at an angle of 32 degrees above the horizontal. Find the range of this stream of water. x=? Find the maximum height of

    asked by Adam Walsh on March 29, 2013
  9. Sci: Physics

    A tin can is filled with water to a depth of 37 cm. A hole 11 cm above the bottom of the can produces a stream of water that is directed at an angle of 32 degrees above the horizontal. Find the range of this stream of water. x=? Find the maximum height of

    asked by Adam Walsh on March 29, 2013
  10. Mathematics

    A water tank has 80 gallons of water. But the tank has a leak from which water flows at a rate of 1 gallon every 2 minutes. If you graph the equation representing the amount of water left in the tank, y, after x minutes, what will the slope and the

    asked by Mikyla on May 24, 2017
  11. science

    A 51-g piece of ice at 0 C is added to a sample of water at 7-C all of the ice melts and the temp of the water decreases to 0 .If you used the 8200 Khan you expand in energy in one day to heat 47000g of water at 27-C what would be the rise in temp? What

    asked by tabitha on June 15, 2012
  12. Physics

    A tin can is filled with water to a depth of 50 cm. A hole 16 cm above the bottom of the can produces a stream of water that is directed at an angle of 35degrees above the horizontal. Find the range of this stream of water. Find the maximum height of this

    asked by Dave on January 26, 2012
  13. 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? 94.4cm3 was the answer I put and I was wrong. Can someone help?

    asked by Alec on June 22, 2012
  14. Calculus 2

    Find the volume of the solid obtained by rotating the region bounded by the curves y=cos(X), y=0, x=0, x=pi/2 about the line y=-1 Volume=?

    asked by RaShawnya on February 20, 2018
  15. Science

    Ca = 0.75 , Cb = 0.735, and Ka = 7.87044 × 10 6 volume of acid is 100 mL. What is the volume of base at the equiva- lence point of this titration?

    asked by Tina on March 9, 2016
  16. chemistry

    The volume of an ideal gas is 2.06L at standard temperature and pressure. Calculate the volume at 1.75atm and 27oC

    asked by Lo on December 6, 2010
  17. chemistry

    An air bubble has a volume of 0.500 L at 18 C. If the pressure does not change, what is the volume, in liters, at each of the following temperatures? A. 0 C B. 425 K C. -12 C D. 575 K

    asked by amy on July 19, 2010
  18. chemistry

    A sample of an ideal gas has a volume of 2.29 L at 2.90 × 102 K and 1.08 atm. Calculate the pressure when the volume is 1.57 L and the temperature is 302 K.

    asked by Alexis on May 7, 2013
  19. usm

    A volume of 10.0 of a 0.190 solution is titrated with 0.770. Calculate the volume of required to reach the equivalence point.

    asked by ren on October 29, 2012
  20. Physics

    Volume of 1200 L of helium at 4000 Pa is heated from 45.0°C to 75.0°C increasing the pressure to 6000 Pa. What is the resulting volume of gas?

    asked by Madison on April 11, 2012
  21. Physics

    Volume of 1200 L of helium at 4000 Pa is heated from 45.0°C to 75.0°C increasing the pressure to 6000 Pa. What is the resulting volume of gas?

    asked by Alexa on April 11, 2012
  22. French 3

    How do you say: It was the neighbor. He asked for Armelle to turn down the volume. This is what I have: C'est le voisin. Il a demande Armell de baisser le volume.

    asked by laurel on August 28, 2008
  23. anatomy&physiology

    How will increase/decrease the volume of blood flowing thrhoug kidneys effect the volume of filtration that forms?

    asked by rally on April 21, 2011
  24. Chemistry-Urgent

    A gas at 61°C occupies a volume of 0.67 L. At what Celsius temperature will the volume increase to 1.12 L? whats the answer didn't understand

    asked by Brianna on March 25, 2017
  25. Chemistry

    A sample of a gas has a volume of 250. mL at 2.10 atm and 227 oC. What volume will it have at standard temperature and pressure (STP)?

    asked by Carrie Boom on April 18, 2014
  26. science

    on a worksheet i have i found out the volume of the rectangle (34.2cm3) then it asks "If a block of H20 the mass would be..." i put 34.2g since that was the volume but not sure if im right?

    asked by sabrina on October 13, 2010
  27. chemistry

    A given mass of gas has a volume of 7.5dm at 250k and 80kmm3,calculate the pressure at which it will have a volume of 7.2dm3 at 270k?

    asked by Blessing on January 28, 2016
  28. chemistry

    a gas has a volume of 20 liters measured at 27 degree celcius and 4 atmospheres .What will be its volume at standard temperature pressure?

    asked by mira on February 15, 2012
  29. Calculus

    Find the volume of the solid formed by revolving the region bounded by the graphs of y=4x^2 and y=16 about the x-axis. (Washer Volume)

    asked by john on January 31, 2010
  30. chemistry

    A sample of gas at 300 K has a volume of 2.0 liters. At what temperature will the volume decrease to 1.0 liter if the pressure is kept constant?

    asked by shelbie on February 1, 2016
  31. Math

    Find the missing dimension of the cylinder. Round your answer to the nearest whole number. 1. Volume = 84 in.^3 r = 6 in. h = ? 2. Volume = 650 cm^3 r = 8 cm h = ?

    asked by Anonymous on March 11, 2014
  32. Chemistry

    A sample of oxygen has a volume of 205cm³ when its temperature is 22.0°C and its pressure is 30.8 kPa. What volume will the gas occupy at STP?

    asked by Leti on February 15, 2018
  33. geometry

    I am not sure I understand especially the part where it says "the value". If the surface area of a sphere decreases, will the value of the volume remain the same? If we decrease the radius than we should have a different volume - right?

    asked by bart on May 27, 2010
  34. chemistry

    a sample of nitrogen gas occupies a volume of 20cm3 at 500k and 760mmhg what will it volume be at 860mmhg 400k

    asked by whiskey on August 9, 2017
  35. chemistry

    A gas that occupies a volume of 6.75L at 89.0atm will occupy what volume at 68.55mm Hg if the temperature remains constant?

    asked by Shannon on March 8, 2010
  36. Physics HELP!

    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? 94.4cm3 was the answer I put and I was wrong. Can someone help?

    asked by Alec on June 21, 2012
  37. chem

    a sample of gas has a volume 8 liters @ 293 degree kelvin & 700 torr what will volume be at STP?

    asked by bella on August 13, 2012
  38. Geometry

    "A cone has the radius of 24 and its volume is 1,920 what is the volume of a similar cone with the radius of 18 Answers A.480 B.810 C.1,080 D.1,440" How do I find the height for the similar cone to get its volume?

    asked by Kaitlyn on March 10, 2015
  39. Math

    Two acid solutions are to be mixed together.  Solution A is 30% acid by volume.  Solution B is 70% acid by volume. The 800 mL mixture is 54% acid by volume. The amount of Solution A, rounded to the nearest milliliter, is ____________mL.

    asked by Amy on July 27, 2015
  40. Algebra

    Boyle's Law says that the volume of a gas varies inversely with the pressure. When the volume of a certain gas is 5 liters, the pressure is 158 kPa (kilopascals). What is the volume when the pressure is 395 kPa?

    asked by Anonymous on March 8, 2016
  41. chemistry

    5ml of 8N HN03, 4.8ml of 5N HCL and a certain volume of 17M H2s04 are mixed together and made up to 2 liter 30ml of this acid mixture exactly neutralize 42.9ml of na2c03, 10 H2O in 100ml of water. Calculate the amount of sulphate 10m in gm present in

    asked by Fai on January 27, 2013
  42. physics

    1. Calculate the work done on the system when 1.00 mol of gas held behind a piston expands irreversibly from volume of 1.00dm cube to a volume 10.00dm cube against an external pressure of 1.00 bar. 2. A perfect gas expand reversibly at a constant

    asked by Cali franco on April 20, 2015
  43. physics

    1. If a steel rope and a nylon rope of equal lengths are to stretch by equal amounts when subjected to equal tensions, what must be the ratio of their distances? 2.A simple hand operated hydraulic press can generate a pressure of 6.0 X 10^9 N/m^2 . If the

    asked by Sandhya on March 15, 2010
  44. 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?

    asked by Alec on June 20, 2012
  45. 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

    asked by annie on April 26, 2012
  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?

    asked by Harry on February 14, 2014
  47. 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?

    asked by brandy on October 14, 2006
  48. 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?

    asked by judy on February 14, 2014
  49. Earth science

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

    asked by Chris on October 9, 2016
  50. 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?

    asked by Brianna on March 21, 2017
  51. geometry

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

    asked by Piggy on February 23, 2012
  52. Math

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

    asked by Karley on April 6, 2014
  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

    asked by fayth on November 28, 2014
  54. 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?

    asked by Bobby on June 23, 2012
  55. geometry

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

    asked by D. on April 23, 2014
  56. chemistry

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

    asked by vk on July 11, 2014
  57. chemistry

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

    asked by twynna on February 9, 2011
  58. 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?

    asked by gary on December 7, 2010
  59. chemistry

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

    asked by kate on April 1, 2013
  60. Chemistry

    The volume of 17.5 grams of SO2(g) at STP would be find volume in liters

    asked by Anonymous on November 16, 2018
  61. 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

    asked by annie on April 24, 2012
  62. math

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

    asked by faith on April 27, 2015
  63. 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?

    asked by Brianna on March 25, 2017
  64. Chemistry

    In an experiment, 238 mL of 0.45 molar hydrochloric acid completely reacts with excess iron to produce hydrogen gas and iron (III) chloride. What volume will the hydrogen gas occupy if it is collected over water at 35 degrees Celsius and 735 torr? The

    asked by Tichele on January 19, 2011
  65. physical science

    You have two cups, one containing 100 g of ice at 0oC, the other containing 100 g of water at 80oC. You pour the hot water into the cup containing the ice. What do you wind up with? A) 100 g of 0oC water and 100 g of 80oC water. B) 50 g of 0oC ice and 50g

    asked by Anonymous on September 26, 2011
  66. Science

    You have two cups, one containing 100 g of ice at 0oC, the other containing 100 g of water at 80oC. You pour the hot water into the cup containing the ice. What do you wind up with? A) 100 g of 0oC water and 100 g of 80oC water. B) 50 g of 0oC ice and 50g

    asked by Allison on September 26, 2011
  67. Calculus

    A water tank is shaped like an inverted right circular cone with a base radius of 14 feet and a height of 25 feet high. If water flows into the tank at a rate of 20 ft^3/min, how fast is the depth of the water increasing when the water is 18 feet deep?

    asked by Joe on April 3, 2012
  68. Math

    A conical water tank with vertex down has a radius of 10 feet at the top and is 22 feet high. If water flows into the tank at a rate of 30 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 14 feet deep? I have tried

    asked by Sarah on October 5, 2014
  69. Physics - Angular Momentum

    Water drives a waterwheel (or turbine) of radius 3.5 m. The water enters at a speed v_1 = 7.5 m/s and exits from the waterwheel at a speed v_2 = 4.0 m/s. a) If 84 kg of water passes through per second, what is the net torque? b) If the water causes the

    asked by Nik on April 18, 2008
  70. Science/CHEM

    Part 1 Chapt 4 1. You dissolve 157.1 g of ammonium nitrate in a 250 mL volumetric flask and add water to the mark (call this solution A). You take 30 mL of solution A and place it in a 100 mL volumetric flask and add water to the mark (this is solution B).

    asked by Kelsey on September 28, 2008
  71. Chemistry

    Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out of 1.5L of water upon warming from 25C to 50C . Assume that the water is initially saturated with nitrogen and oxygen gas at

    asked by Anonymous on May 9, 2015
  72. chem

    Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out of 1.2L of water upon warming from 25C to 50C . Assume that the water is initially saturated with nitrogen and oxygen gas at

    asked by rc on January 25, 2010
  73. science

    volume and mass This is not a question that I can answer, or help you solve. It is clearer if you phrase your post in terms of a specific question. I searched Google under the key words "volume mass" to get these possible sources:

    asked by bridgette on November 5, 2006
  74. Chemistry

    Stock solution A is prepared by dissolving 182 mg of ferrous ammonium sulfate in water and diluting to volume in a 500-mL volumetric flask. Calculate the concentration of iron, in ppm, in stock solution A.

    asked by Anonymous on October 8, 2018
  75. Chemistry

    Zn+HCl---->ZnCl2+H2 If you measure the total volume of collected gas over water at 65*C to be 728 mL at a total pressure of 845 torr, how many milliliters of 2.6 HCl would be required to produce the correct amount of hydrogen?

    asked by Brandie on May 5, 2014
  76. Science

    A 400 kg. wooden log is floating with 0.2 of its volume above water level. Given that the density of iron is 7.8 gram per centimeter cubic, calculate the least mass of iron object attached to the underside of log that will sink it.

    asked by Uddeshya on October 25, 2013
  77. Chemistry

    Zn+HCl---->ZnCl2+H2 If you measure the total volume of collected gas over water at 65*C to be 728 mL at a total pressure of 845 torr, how many milliliters of 2.6 HCl would be required to produce the correct amount of hydrogen?

    asked by Brandie on May 5, 2014
  78. Physic

    If a scuba diver fills his lungs to full capacity of 5.5LL when 8.2mm below the surface, to what volume would his lungs expand if he quickly rose to the surface? Assume he dives in the sea, thus the water is salt.

    asked by Anonymous on May 10, 2014
  79. College Chem PLEASE HELP

    A 3.50 liter ballooncontains air at 65% relative humidity at 22 degrees C at 1.0 atm pressure. A small peice of Na metal is introduced to the balloon to remove all of the water vapor. What would the new volume be for the dry air in the balloon?

    asked by Ash on January 31, 2011
  80. Math

    I am doing a project, are my answers correct? 1. Find and simplify the volume-to-surface-area ratio for each of the three possible ice cube shapes. You can use this chart. |Shape| S/A Formula|Volume Formula Cube | S.A=6s^2 | V=s^3 6/s Sphere|S.A+4 pi

    asked by Alexia Smith on March 4, 2016
  81. Chemistry

    I posted this before and I know now to use P1T2=P2T1 but I was wondering what I would plug in as pressure and temp? just an example of one would be so great. In each of the four problem in this section, all gases are measured at the same temperature and

    asked by Eve on May 22, 2016
  82. Help please

    According to the textbook,an individual's most. Important decision that will effect the climate is: a. The choice to unplug an extra freezer that is rarely used b. looking for the energy star on new appliances c. Selecting a fuel efficient automobile d.

    asked by Tony on January 18, 2013
  83. 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

    asked by Deondre on October 2, 2017
  84. Calculus (math)

    A conical water tank with vertex down has a radius of 12 feet at the top and is 23 feet high. If water flows into the tank at a rate of 20 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 12 feet deep?

    asked by mariel on October 25, 2014
  85. chem - asap

    i combined agno3 with 25ml of tap water, and it turned faint blue which ion is present in trace amounts in tap water but not in distillied water? explain. what is the source of the ion in the tap water?

    asked by Smarth on October 2, 2011
  86. calculus

    A conical water tank with vertex down has a radius of 12 feet at the top and is 23 feet high. If water flows into the tank at a rate of 20 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 17 feet deep?

    asked by Mike on November 30, 2012
  87. physics

    A pot containing 1.09 liter of water, initially at 18°C, is placed on a 1101 W electric heating element. (a) How much heat must be supplied to the water to bring it to a boil? (b) How much heat is necessary to boil all the water away? What is the minimum

    asked by JOHN on April 9, 2012
  88. math

    A conical water tank with vertex down has a radius of 13 feet at the top and is 28 feet high. If water flows into the tank at a rate of 10 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 17 feet deep?

    asked by PAT on November 3, 2015
  89. math - calc

    A conical water tank with vertex down has a radius of 12 feet at the top and is 26 feet high. If water flows into the tank at a rate of 30 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 12 feet deep?

    asked by Greg on October 1, 2013
  90. math - calc

    A conical water tank with vertex down has a radius of 12 feet at the top and is 26 feet high. If water flows into the tank at a rate of 30 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 12 feet deep?

    asked by Greg on October 1, 2013
  91. calculus

    A conical water tank with vertex down has a radius of 12 feet at the top and is 28 feet high. If water flows into the tank at a rate of 30 ft^3/min, how fast is the depth of the water increasing when the water is 16 feet deep?

    asked by M on October 23, 2018
  92. physics

    A tin can is filled with water to a depth of 30 cm. A hole 11 cm above the bottom of the can produces a stream of water that is directed at an angle of 34° above the horizontal. (a) Find the range of this stream of water. (b) Find the maximum height of

    asked by JJ on January 14, 2010
  93. Chemistry HW Help!

    I really need help with the following question.... What is the volume, in liters, of 0.250 mol of hydrogen gas at 20 °C and 0.974 atm pressure? I also would like to let you know that before you can put the numbers into an equation and solve for the

    asked by Kiara on April 29, 2008
  94. chem 102

    Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out of 1.1L of water upon warming from 25 ∘C to 50 ∘C. Assume that the water is initially saturated with nitrogen and oxygen

    asked by ieshia on February 18, 2014
  95. physics

    An automobile travels at the rate of 25 m/s for 5 minutes, then at 30 m/s for 10 minutes, and finally at 10 m/s for 2 minutes. Find a. the total distance covered in meters and the average speed in m/s

    asked by Grail on January 12, 2012
  96. RE: Water

    If I boil water at home, when and how do I know I've boiled the water long enough to make distilled water?

    asked by Diana on January 1, 2008
  97. English

    What is the last step for planting potatoes? 1. It is to water well. 2. Water well. 3. It is "Water well." (What is the suitable answer for the question?)

    asked by rfvv on April 21, 2013
  98. Science!!

    How do you expect the water level to change when the apparatus is placed in warm water? In cool water?

    asked by Lucia Vendales on January 8, 2016
  99. chemistry

    What happens if the water hoses are incorrectly attached in a distillation apparatus - i.e. the water in and water out are switched?

    asked by Cassie on October 8, 2012
  100. physics

    A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of + 17.4 m/s, while the exiting water stream has a velocity of – 15.0 m/s. The mass of water per second that strikes

    asked by ben on January 30, 2014