1. SCIENCE HEEELP

    I posted this earlier but received no response. It's a tough question. Does anyone know a web site I can go to? It is estimated that industires and sewage treatment facilities discharge into the Chesapeake an amount of waste water equal to _____% of the

    asked by Meg on May 18, 2007
  2. chemistry

    a sample of vapor weighing 0.745 g filled a 250 ml flask when placed in a water bath at 98 degrees celsius. the barometric pressure that day was 753 torr. calculate the volume of the vapor at stp, and the weight of one mol of the volitile liquid

    asked by Anonymous on June 18, 2012
  3. Chemistry

    an air bubble trapped in bread dough at room temperature (291k) has a volume of 1.0mL. The bread bake sin the oven at 623k(350C) calculate the new volume of the air bubblr, using charles law( Volume divided by Temperature= K) my answer is: 1.0/350C =

    asked by Jonathan T on March 22, 2008
  4. physics

    Water is to be pumped to the top of a skyscraper, which is 1270 ft high. What gauge pressure is needed in the water line at the base of the building to raise the water to this height?

    asked by Sam on May 21, 2012
  5. Chemistry

    The human body obtains 1094 kJ from a candy bar. If this energy were used to vaporize water at 100°C, how much water in liters could be vaporized? (Assume that the density of water is 1.0 g/mL.)

    asked by Mr.Chem on February 23, 2011
  6. math algebra

    a diver dives from a cliff .when her centre of gravity is 46 ft above the surface of the water. her initial vertical velocity leaving the water is 9 ft per second. after how many secs does she hit the water? solve

    asked by E on March 8, 2013
  7. Please help how do I calculate this

    Calculate the Calorimeter Constant (Ccal) if 25.00 g of water at 51.50°C was added to 25.00 g of water at 25.00 °C with a resulting temperature of 35.00 °C? (*remember the specific heat capacity of water (cwater) = 4.180 J/g°C)

    asked by Mary on June 25, 2013
  8. science

    hey guys, im kinda stuck on my science hw. i don't remember wut condensation is, i think it is when water turns into a water vapor or when ice melts into water.

    asked by A7X a.k.a Aaron on October 7, 2009
  9. chemistry

    Water (2690 ) is heated until it just begins to boil. If the water absorbs 5.29×105 of heat in the process, what was the initial temperature of the water?express answer in Celsius.

    asked by Kyle on September 21, 2010
  10. Physics

    A high diver of mass 52 kg jumps off a board 11 m above the water. If, 4.7 s after entering the water his downward motion is stopped, what average upward force did the water exert?

    asked by Anonymous on December 21, 2010
  11. physics

    Water is flowing down through the pipe shown in the drawing. Point A is 0.410 m higher than B. The speed of the water at A and B are vA = 5.00 m/s and vB = 3.80 m/s. Determine the difference PB - PA in pressures between B and A. The density of water is

    asked by john on November 8, 2013
  12. Physics

    Suppose you put a 100 W light bulb in a container of water and use it to heat the water. How long would it take to raise the temperature of a gallon of water at 25 C to 90C? Please explain!

    asked by Kpang on December 12, 2012
  13. Science

    500g of water at 100°c is mixed with 300g of water at 20°c.specific heat capacity of water is 4.2Jg°c.find the final temperature of mixture. (Physics)

    asked by Rahul on September 5, 2016
  14. chemistry

    0.10 mol of molecule A is added to 1.0 mol pf molecule B.The initial volume of B was 1.1L and the final volume of the solution is 1.039L. Assuming that the partial molar volume of B is exactly 50% greater than that of A, find the partial molar volumes of

    asked by mistylight04 on May 11, 2010
  15. Math.

    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

    asked by Anonymous on May 21, 2015
  16. 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

    asked by Anonymous on May 21, 2015
  17. Science Ecology

    Comparing my answer to the "suggested answer" in the back of the book. Q: Using an example, explain how convection currents are formed. My Answer: Convection currents are formed as a result of different densities in a fluid. For example, in a pot of water,

    asked by Jasmine on December 11, 2017
  18. Physics

    An automobile has a mass of 2000 kg and a velocity of +12 m/s. It makes a rear-end collision with a stationary car whose mass is 1850 kg. The cars lock bumpers and skid off together with the wheels locked.

    asked by Anonymous on January 13, 2015
  19. Math

    800cm3 of water is poured into an inverted right conical vessel and the water level is 6cm. How much more water has to be added to the vessel such that the water level becomes 9cm?

    asked by Nicola on December 30, 2011
  20. physics

    A rock is dropped from bridge to the water below. It take 2.4s to hit water fid the final speed of the rock when it hits the water. How high is the bridge above water

    asked by tasha-please help on January 17, 2012
  21. Physics egg

    Could you hardboil and egg on the moon? Options: *Yes, because water boils spontaneously on the moon. *No, because water boils at such a high temperature that it would cause the egg to disintegrate before it became hard-boiled. *Yes, because the

    asked by Julie on August 9, 2005
  22. Factoring Polynomials

    Ok, this is pretty long, so bear with me. The problem says: The diagram (not shown here, sorry) shows a cube of metal with a cylinder cut out of it. The formula for the volume of a cylinder is V=pi*r^2*h, where r is the radius and h is the height. The

    asked by Emily on January 11, 2007
  23. physics

    a pond of water filled with water apto 60m. 1)write formulato find the pressure of water exerted on the base of pond. 2)calculate the pressure exerted by the water on the base of pond?density of water is 1000kg/m3 3)half of the water was removed from the

    asked by sweetie on November 24, 2010
  24. physics,plz.....give me answer as soon as possible

    a pond of water filled with water apto 60m. 1)write formulato find the pressure of water exerted on the base of pond. 2)calculate the pressure exerted by the water on the base of pond?density of water is 1000kg/m3 3)half of the water was removed from the

    asked by sweetie on November 24, 2010
  25. Math

    A conical water tank with vertex down has a radius of 10 feet at the top and is 29 feet high. If water flows into the tank at a rate of 10 , how fast is the depth of the water increasing when the water is 17 feet deep?

    asked by Salman on October 15, 2009
  26. Chemistry

    A sample of zinc metal reacts completly with an excess of hydrochloric acid: Zn(s) + 2HCl(aq) --> ZnCl2(aq) + H2(g) The hydrogen gas produced is collected over water at 25.0 °C. The volume of the gas is 78.0 L & the pressure is 0.980 atm. Calculate the

    asked by ChemLover on August 12, 2011
  27. science

    which has a lower ph pure water that is hot or pure water that is cold? is it possible for water to be neutralbut have a ph less than or greater than 7.0? how readily an acid donates a hydrogen is a fuction of how well the acid is able to accomodate the

    asked by sarah on May 15, 2010
  28. chem homework

    a gas occupies a volume of 410mL at 27 degrees Celcius and 740mm Hg pressure. Calculate the volume the has would occupy at STP.

    asked by samantha on November 30, 2010
  29. Chemistry

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

    asked by Amber on December 3, 2009
  30. Chemistry

    sample of methane gas at 250K and 1.5atm has a volume of 3.0L. the temp change is 350K and volume is increased to 6.0L. what is the new pressure?

    asked by Mary on May 27, 2009
  31. Chemistry

    A given volume of ozone diffused from a certain apparatus in 96seconds calculate the time taken by an equal volume of carbonoxide to diffuse under the same condition?

    asked by Zeugen reezy on December 26, 2016
  32. math

    If a rectangular prism's length is doubled, it's width quadrupled and it's height stays the same, what is the ratio of the new volume to the original volume?

    asked by K.C. on February 7, 2011
  33. Chemistry

    A sample of carbon dioxide has a volume of 22.0 L at 5.80 x 102 mm Hg. What pressure, in torr, would be needed to increase the volume to 48.6 L at constant temperature?

    asked by Anonymous on November 6, 2013
  34. chemistry

    what volume of oxygen at STP is required to affect complete combustion of 200cc of acetylene and what would be the volume of co2 formed?

    asked by aishwarya on March 12, 2013
  35. Chemistry

    An ideal gas with an initial volume of 2.30L is cooled to 12.00 Celsius where its final volume is 1.85L. What was the temperature initially?

    asked by Nate on February 7, 2011
  36. Chemistry

    The measured experimental volume of ascetic acid in a sample of vinegar was 7% and the manufacture claimed volume is 5.8% , what is the percentage error ?

    asked by Mariam on April 20, 2014
  37. chemistry

    A sample of helium gas has a volume of 328 mL at 0.69 atm. What pressure is needed to reduce the volume at constant temperature to 32 mL?

    asked by john on February 23, 2014
  38. Chemistry

    a sample of carbon dioxide has a volume of 25.0L at 5.80 x 10^2 mmHg. what pressure would be needed to increase the volume to 55.5 L? assume constant temperature

    asked by Colby on December 8, 2011
  39. Chemistry

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

    asked by Kenneth on August 14, 2017
  40. chemistry

    A sample of carbon dioxide has a volume of 22.0 L at 5.80 x 102 mm Hg. What pressure, in torr, would be needed to increase the volume to 48.6 L at constant temperature?

    asked by Anonymous on November 7, 2013
  41. CHEMISTRY

    A quantity of N2 occupies a volume of 1.5 L at 300 K and 1.2 atm . The gas expands to a volume of 3.2 L as the result of a change in both temperature and pressure.

    asked by Anonymous on December 7, 2015
  42. Science

    The gas in a cylinder with a piston has a volume of 2.4 m3 and a tempture of 450k. Kwpping the pressure constant the volume is changed to 7.2 m3. What is the new temputure?

    asked by tg on October 3, 2013
  43. science

    You burn 6 grams of carbon in plenty of air: C ( s) + O2 ( g) = CO2 ( g) a What volume of gas will form (at rtp)? b What volume of oxygen will be used up?

    asked by Maya on February 19, 2016
  44. math

    Students noticed that the path of water from a water fountain seemed to form a parabolic arc. They set a flat surface at the level of the water spout and measured the maximum height of the water from the flat surface as 6 inches and the distance from the

    asked by Anne on November 14, 2016
  45. Science

    Why does the temperature remain constant around 0 degrees C and 100 degrees C? For what? For water when it is freezing or boiling? Or do you have another question in mind? Sorry, it's for water when it is freezing or boiling. Think of it this way. Start

    asked by Katie on January 4, 2007
  46. Chemistry

    Ok so I realize this is a lot of questions, but if someone could at least just give me the general set up for each problem that would save my life! In each of the four problem in this section, all gases are measured at the same temperature and pressure. 1)

    asked by Eve on May 20, 2016
  47. college chemistry

    We did not find any results for 'An automobile gasoline tank holds 23.0 gal when full. How manypounds of gasoline willit hold if the gasoline has a density of 0.737 g/ml?

    asked by kristy on March 3, 2015
  48. math chem

    Global warming refers to the rise in average global temperature due to the increased concentration of certain gases, called greenhouse gases, in our atmosphere. Earth¡¯s oceans, because of their high heat capacity, can absorb heat and therefore act to

    asked by Anonymous on January 25, 2011
  49. physics

    One end of a wire is attached to a ceiling, and a solid brass ball is tied to the lower end. The tension in the wire is 160 N. What is the radius of the brass ball? Well, the tension is from the brass ball, and you are given the weight as 160N.

    asked by meredith on June 1, 2007
  50. Physics

    A stream of water strikes a stationary turbine blade, as the drawing illustrates. The incident water stream has a velocity of +18.0 m/s, while the exiting water stream has a velocity of -18.0 m/s. The mass of water per second that strikes the blade is 73.0

    asked by Demetrius on November 29, 2007
  51. physics

    Imagine a landing carft approaching the surface of Callisto, one of Jupiture's moons. If the engine provides an upward force (thrust) of 3260 N, the craft descends at constant speed; if the engine provides only 2200 N the craft accelerates downward at .39

    asked by Dee on November 26, 2006
  52. chemistry

    Nitric acid, a very important industrial chemical, is made by dissolving the gas nitrogen dioxide (NO2) in water. Calculate the moles of gas produced in 2 L volume container, 736 torr and 50 ºC if the gas behaves as ideal

    asked by SAARA on April 18, 2008
  53. chemistry

    Nitric acid, a very important industrial chemical, is made by dissolving the gas nitrogen dioxide (NO2) in water. Calculate the moles of gas produced in 2 L volume container, 736 torr and 50 ºC if the gas behaves as ideal:

    asked by aaloy on April 16, 2008
  54. HELP SCIENCE (Biology)

    Why water is a polar molecule? and What property of water explains why it can travel to the the top of trees??? PLEASE HELP In addition, the the properties of water that are mechanically ... distance the water has to travel by taking the most direct route

    asked by Dakota on September 25, 2006
  55. physics

    A primitive diving bell consists of a cylindrical tank with one end open and one end closed. The tank is lowered into a freshwater lake, open end downward. Water rises into the tank, compressing the trapped air, whose temperature remains constant during

    asked by kb on November 19, 2008
  56. Statistics

    Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of 50

    asked by stan on June 24, 2010
  57. Statistics

    Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of 61

    asked by Jack on June 20, 2010
  58. Chemistry

    Before small batteries were available, carbide lamps were used for bicycle lights. Acetylene gas, C2H2, and solid calcium hydroxide were formed by the reaction of calcium carbide, CaC2, with water. The ignition of the acetylene gas provided the light.

    asked by Andrew on November 22, 2016
  59. Algebra 1 (Reiny!)

    A piece of 8.5-by-11-inch cardboard has identical squares cut from its corners. It is then folded into a box with no lid. The volume of the box in cubic inches is 4c^3 - 39c^2 + 93.5c, where c is the side length of the missing squares in inches. a. What is

    asked by Anonymous on February 10, 2014
  60. math

    Determine the volume of diluted nitric acid D1.11g/ml, 19% hn03. That can be prepared by diluting with water 50ml of conc hn03 d= 1.42g/ml, 69.8% I do not still understand how 183.68ml I want you clear explain step by step for me.

    asked by Fai on December 25, 2013
  61. Chem

    Depending upon the tip of a dropper pipet, there are approximately 20 drops per milliliter of water. The experimental procedure indicates the addition of 5-10 drops of each solution to the test tubes. Calculate the volume range in milliliters for the

    asked by Robert on October 11, 2015
  62. algebra

    A graduated cylinder with a radius of 3 cm contains water to a height of 9 cm. Yann adds 15 steel balls, each with a diameter of 2.54 cm. What is the total volume of the contents in the cylinder after the balls are added? Use 3.14 to approximate pi and

    asked by tami on March 5, 2015
  63. CHEM. help please

    2 H2O (l) → 2 H2 (g) + O2 (g) 1. Without doing any calculations, which side will enthalpy favor in this reaction? Entropy? 2. What volume of water in gallons would need to be split to store the same amount of energy as found in 10.0 gallons of gasoline?

    asked by Andrew on November 2, 2010
  64. Chemistry

    Calculate the number of grams of solid Mg(OH)2 that will dissolve in 650 mL of water. For Mg(OH)2, Ksp = 1.5 x 10-11. Assume no volume change for the solution when the solid is added. A. 0.0093 B. 0.0059 C. 0.012 D. 0.019 E. 0.060 I got 0.0059, but I'm not

    asked by Jessica on December 26, 2012
  65. Chemistry

    If you need to produce 355 grams of oxygen gas (O2) in the electrolysis reaction of water by an electric current. If the reaction is run at 125 degrees Celsius in a reactor volume 22500ml. What is the pressure of the produced oxygen in mm Hg?

    asked by Emily on April 7, 2015
  66. chemistry

    14g of lithium hydroxide dissolves in 500cm^3 of water.in titration ,300m7^3 is used to neutralise sulphuric acid of 0,2mol.dm^-3 how do i calculate (a)concentation of a base and calculate for (c)volume of the acid and (c)which mass of Alkaline was used

    asked by kem on May 27, 2015
  67. Chemistry

    how to prepare and calculate 10%,20% and 30% of phosphoric acid from the concentrated? Meaning that if 10% = 10%phosporic acid+90% of water. let say i want to prepare in volume of 250ml. given, Formula: H3PO4 Melting point: 42.35 °C Density: 1.88 g/cm³

    asked by Merlina on January 29, 2013
  68. chemistry

    A 125.0 mg sample of an unknown, monoprotic acid was dissolved in 100.0 mL of distilled water and titrated with a 0.050 M solution of NaOH. The pH of the solution was monitored throughout the titration, and the following data were collected. Determine the

    asked by Mohanad on March 11, 2014
  69. Chemistry

    Sulfur (3.26 g) is burned in a constant volume calorimeter with excess O2(g). The temperature increases from 21.25°C to 28.22°C. The bomb has a heat capacity of 923 J/K, and the calorimeter contains 815 g of water. Calculate ΔU per mole of SO2 formed,

    asked by Noelle on October 20, 2010
  70. chemistry

    What volume of hydrogen gas is produced when 19.6 g of sodium reacts completely according to the following reaction at 25oC and 1 atm? sodium (s) + water (l) sodium hydroxide (aq) + hydrogen (g)

    asked by amanda on January 30, 2012
  71. please help idin't get it

    5.imagine you are at the beach on a very hot day. you walk toward the water. the sand is eextremly hot. when you reach the water, you find that the water is much cooler than sand. b)predict what the air temprature would be relative to the sand and water

    asked by shweta on September 12, 2010
  72. chemistry

    A 25.0 mL sample of 1.00 M KBr and a 75.0 mL sample of 0.800 M KBr are mixed. The solution is then heated to evaporate water until the total volume is 50.0 mL. What is the molarity of the KBr in the final soltion?

    asked by Anonymous on August 29, 2011
  73. chemistry

    30 ml of sugar syrup is mixed with water to yield a concentration of 60% sugar solution. What is the volume of the solution? The sugar has a molecular formula of c12h22o11 and a mass of 12g.

    asked by Helena on December 16, 2013
  74. physics

    A traditional unit of length in Japan is the ken (1 ken = 1.97 m). What is the volume of a cylindrical water tank of height 7.17 kens and radius 6.21 kens in cubic kens

    asked by jessica on September 2, 2011
  75. PHYSICS

    1. Vecor A is 3 units in length and points along the positive x-axis. Vector B is 4 units in length and points along a direction 150 degrees from the positive x-axis. What is the direction of the resultant relative to the positive x-axis? a. 80 degrees b.

    asked by anonymous on December 14, 2006
  76. chemistry

    calculate the mass of water contained in 4.021 m^3 of saturated air at 27 ºCgiven that the saturate d vapour pressure of water at 27 ºC is 3.53 kPa. (RMM of water is 18.02, R = 8.314 J K-1 mol^-1

    asked by John on July 7, 2014
  77. Chemistry

    Given that 1g of Phenacetin requires 82mL of hot water to dissolve, or 1310mL of cold water (TY= 3.92g): 1) How much water will you need to recrystallize the theoretical yield? 2) How much product will be lost because of recrystallization?

    asked by Austin on May 5, 2013
  78. Science

    Which of these is true about water vapor? A. It is water in a gas state. B. It is water in a solid state. C. It is water in a liquid state. D. It is not measurable.

    asked by PETER on February 2, 2018
  79. science

    how is water purified in the water cycle? why is the sun so important in the water cycle? what role does evaporation play in the water cycle? thanks!!!! :)

    asked by Bri on January 26, 2011
  80. physics

    Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1000 N, for example.

    asked by C on March 31, 2012
  81. physics

    Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1000 N, for example.

    asked by Jim on March 29, 2012
  82. physics

    Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1000 N, for example.

    asked by Kristie on March 28, 2012
  83. Physics

    density of ice 917 kg/m^3, density of sea water is 1025 kg/m^3, a piece of ice floating has a volume of 5.2 m^3, what is the weight of the heaviest bear the ice can support without sinking?

    asked by Omar on November 30, 2010
  84. Physics

    Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1200N. F=

    asked by Nina on February 22, 2018
  85. physics

    Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1000 N, for example.

    asked by christy on April 2, 2012
  86. physics

    a garbage barge on the hudson river, measures 25 x 5 x 1 meters & floats in the water. how much deeper does the barge float when 4200 kg of garbage is in it? so far, all i know is the volume of the barge is 125 m^3. now i just don't know what to do next.

    asked by john on March 16, 2010
  87. Math- Calculus

    A company needs to produce a cylindrical can to hold water. It must have a volume of 500ml. The side of the can will cost 40$/m^2 to produce and the top and bottom of the can will cost 50$/m^2 to produce. Find the most economical dimensions.

    asked by John on March 24, 2013
  88. chem!

    A common flaw in calorimetry experiments to determine the molar enthalpy of solution is to have a mass of solute that is inappropriate for the volume of water used resulting in a temperature change that is too small or too large. A temperature change of

    asked by bob on April 14, 2007
  89. chemistry

    When water freezes and becomes solid ice, the hydrogen bonds create a crystal structure and there is fixed space between each water molecule. This causes ice to? a.become more dense than liquid water because it is a solid* b.become less dense than liquid

    asked by Boberto on April 5, 2016
  90. Math

    A rectangular aquarium has a length of 18 inches, a width of 8 inches; and a height of 12 inches. What is the maximum volume of water that the aquarium can hold? Use V = lwh

    asked by Tayler on May 23, 2016
  91. Physics - ice to liquid

    Fifty grams of hot water at 80oC is poured into a cavity in a very large block of ice at 0oC. The final temperature of the water in the cavity is then 0oC. Show that the mass of ice that melts is 50 g. To melt ice to 50g of water, I think that it will

    asked by Ceres on September 24, 2009
  92. language help !

    DAD: Where’s the water now? MOM: As high as the car’s wheels. DAD: We’d better go. MOM: We can’t. The car’s dead. DAD: What? MOM: The water is up to the engine; it won’t start. TINA: Oh, no! MARK: What can we do? DAD: I don’t know. (He looks

    asked by kelsey on May 21, 2014
  93. Chemistry

    A balloon filled with 1.35 atm of dimethyl ether gas and 5.25 atm of oxygen gas at 27 °C has an initial volume 2.00L They react according to the following reaction: C2H6O (g) + 3 O2 (g) -> 2 CO2 (g) + 3 H2O (g) The system is allowed to back cool down to

    asked by T on February 19, 2015
  94. science

    home / homework help / questions and answers / science / physics / the temperature of an ideal gas at an initial pressure ... Question The temperature of an ideal gas at an initial pressure P1 and volume V1 is increased at constant volume until the

    asked by ahmad on January 8, 2015
  95. physics

    An automobile traveling 80 mi/hr has wheels 31 inches in diameter. If the car is brought to a stop uniformly in 58 turns of the wheels, what is the magnitude of the angular acceleration of the wheels (in radians/second^2)?

    asked by CPhy on May 7, 2013
  96. Physics

    The resistance of the wire in the windings of an electric starter motor for an automobile is 0.0190 Ohms. the motor is connected to a 12 V battery. What current will flow through the motor when it is stalled?

    asked by Kara on February 20, 2011
  97. Chemistry

    Density of a metal cube of dimension 10 inches X 10 inches x 10 inches is 8.05g/cm3. What is its mass? 10inches? isnt that 25 cm? So get the volume in cm^3 by multiplying the three dimensions in cm. Multipy that volume by density. Mass= density*volume

    asked by Brooke on June 10, 2007
  98. Math

    The pressure, P, of a gas varies inversely with its volume, V. Pressure is measured in units of Pa. Suppose that a particular amount of a gas is initially at a pressure of 84 Pa at a volume of 36 L. If the volume is expanded to 216 L, what will the new

    asked by Jiskha Homework Help on May 23, 2017
  99. Calculus

    a bottle of water with temperature 70 F is placed in a refrigerator with an internal temperature of 34 F. After 30 minutes, the temperature of the water has decreased to 52 F a)Give the cooling constant k(6th decimal place), and find an expression for the

    asked by Ryan kustin on March 23, 2015
  100. intro to chemistry

    A sample of nitrogen has a volume of 50.0L at a pressure of 760mmHg. What is the volume of the gas at each of the following pressures if there is no change in temperature? A. 1500mmHg B. 2.0atm C. 0.500atm

    asked by david on October 11, 2010