1. chemistry PLEASE HELP!!!

    Acetylene gas (C2H2) is used in welding. During one job, a welder burns 48.0 g of acetylene. Using a balanced equation for the complete combustion of acetylene, calculate the following: What is the balanced equation. The mass of oxygen used? The mass of

    asked by MINNIE on December 7, 2014
  2. chemysteryyy!!!!

    Rubbing Alchol often contains propanol, C3H7OH. Suppose that you have an 85.9g sample of propanol. a) Howmany carbon atoms are in the sample? b) Howmany hydrogen atoms are in the sample? C)Howmany oxygen atoms are in the sample? PLEASE!! explain the steps

    asked by Kristy on December 26, 2012
  3. chemistry

    Water softeners often replace calcium ions in hard water with sodium ions. Since sodium compounds are soluble, the presence of sodium ions in water does not cause the white, scaly residues caused by calcium ions. However, calcium is more beneficial to

    asked by M on January 25, 2010
  4. chem

    How many moles of potassium iodide, KI, are required to precipitate all of the lead(II) ion from 25.0 mL of a 1.6 M Pb(NO3)2 solution? A. 0.020 mol B. 0.040 mol C. 0.080 mol D. 0.64 mol E. 64 mol

    asked by victoria on April 28, 2013
  5. Biology

    In hopes that this will actually get answered-- Match the terms with the appropriate descriptions. Digestive Excretory Skeletal Circulatory Nervous Respiratory Reproductive _______________________ A. coordinate body activities B. Removal of waste

    asked by mysterychicken on March 5, 2010
  6. chemistry

    Oxygen reacts with the dipeptide glycylglycine [C4H8N2O3(s)] to form urea [CH4N2O], carbon dioxide and water: 3O2(g) + C4H8N2O3 (s)  CH4N2O (s) + 3CO2(g) + 2H2O(l) At STP, solid glycylglycine has the following thermodynamic properties: = -491.5 kJ/mol =

    asked by Tillie on February 12, 2009
  7. FLUID MECHANICS

    Air at 45°C is flowing steadily in a 25 cm-diameter horizontal pipe made of plastic at a rate of 900 l/min. Determine the head loss, and the required pumping power input for flow over a 175m-long section of the pipe.

    asked by ANNA on May 3, 2014
  8. chemistry

    calculate the volume of 0.0321M NaOH that will be required to neutralize 25.00 mL of a 0.0399M hydrochloric acid solution. M1v1=m2v2 since were trying to find out the volume I would change the equation to m2 times V2 divided by M1 0.0399 X 0.025/0.0321

    asked by elizabeth on November 2, 2014
  9. physics

    If the ultimate shear strength of steel is taken to be 2.00 109 Pa, what force is required to punch through a steel plate 1.60 cm thick? Assume the superhero's fist has cross-sectional area of 1.20 102 cm2 and is approximately circular. answer in Newtons

    asked by john on November 7, 2010
  10. physics help!

    A wire of 62cm length and mass 13g is suspended by a pair of flexible leads in a magnetic field of 0.44T. What are the magnitude and direction of the current required to remove the tension in the supporting leads? Please also scroll down because I also

    asked by angy on May 31, 2016
  11. Chemistry

    The extracellular concentrations of Na+ and K+ are 135mM and 6mM, respectively. The intracellular concentrations of Na+ and K+ are 10mM and 105mM, respectively. The membrane potential is 75mV. For Na+/K+ ATPase, 3Na+ are exported and 2K+ are imported.

    asked by Kam on September 29, 2013
  12. world history

    How did food surpluses change the way of life in early human settlements? A-villages needed to organize governments B-the population decreased C-more hunting and gathering was required D-humans needed fewer tools and possesions my best answer is A is that

    asked by Cassandra on August 11, 2017
  13. CHEMISTRY

    The extracellular concentrations of Na+ and K+ are 135mM and 6mM, respectively. The intracellular concentrations of Na+ and K+ are 10mM and 105mM, respectively. The membrane potential is 75mV. For Na+/K+ ATPase, 3Na+ are exported and 2K+ are imported.

    asked by Izabella on September 26, 2013
  14. Chemistry

    Calculate amount of solid NaF required to prepare a 250mL acidic buffer with pH=2.75. The initial molarity of HF is .25M but you only have .075L of it. I have tried many different ways... the most recent and seems to be simplest was using H-H equaion and

    asked by John on April 6, 2011
  15. MATH 12U

    Mary leaves a dock paddling her canoe at 3m/s. She heads downstreamat an angle of 30 degrees to the current which is flowing at 4 m/s. a) How far downstream does Mary travel in 10s? b) What is the length of time required to cross the river ifits width is

    asked by Kevinn on February 24, 2011
  16. Chemistry

    The extracellular concentrations of Na+ and K+ are 135mM and 6mM, respectively. The intracellular concentrations of Na+ and K+ are 10mM and 105mM, respectively. The membrane potential is 75mV. For Na+/K+ ATPase, 3Na+ are exported and 2K+ are imported.

    asked by Drew on September 30, 2013
  17. Criminal Justice

    Create a checklist that may be provided to the officers involved in the operation so they may have a reference reminding them of what they must do to properly process a defendant in a federal investigation. The checklist should include processing

    asked by Luke Phillips on November 1, 2007
  18. Calc

    So the q is; You need to enclose a rectangular field with area 9600m^2, then divide the field into 2 sections. Whats the minimal amount of fencing required to accomplish this. So i have 3x+2y, and 9600=xy. i TRIED ISOLATING the second formula and plugging

    asked by Labub on March 16, 2018
  19. science

    A uniform AB 2m long Rod which exerts a downwards force of 60N at its centre is placed on a knife egde support position 0.8m from A determine the vertical downward force required at A to prevent rotation of the Rod.

    asked by mwazzy on April 6, 2014
  20. math (steve for your help)

    0.224g sample the contained only bacl2 and kbr required 19.7ml of 0.1M agn03 to reach the end point. Calculate the percent of each compound present in the sample. Steve want you step by step for me.

    asked by Fai on December 28, 2013
  21. PHYSICS

    when a mass of 2.5kg string is attached to a spring it stretches 42cm. a) find the constant of the spring 'k' b) how much force is required to stretch the spring 50cm? c) how much energy is stored in the spring when stretched 0.35cm?

    asked by EMMA on August 6, 2014
  22. accounts

    People from all over the world moving from sole proprietorship to partnerships due to the numerous benefits they get. You are required to tell why the focus is shifting from sole proprietorship to partnership? Explain your answer with the help of at least

    asked by fatima on May 3, 2014
  23. physic

    You own a yacht which is 14.5 meters long. It is motoring down a canal at 10.1 m/s. Its bow (the front of the boat) is just about to begin passing underneath a bridge that is 30.0 m across. How much time is required until its stern (the end of the boat) is

    asked by coolstir on June 8, 2011
  24. Physics

    A skier of mass 71.0 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 62.2 m up a 37.0 slope (assumed to be fric- tionless) at a constant speed of 2.0 m/s? The acceleration of gravity is 9.81 m/s2 .

    asked by Aly on January 10, 2012
  25. Chemistry

    1. Nitrogen monoxide is oxidized in air to give brown nitrogen dioxide. Starting with 2.2mol NO, how many moles and how many grams of 02 are required for complete reaction? What mass of NO2,in grams, is produced?

    asked by Mitto on September 10, 2013
  26. Math functions

    The manufacturer of a reclining lawn chair would like to have the chair positioned at the following angles: 105,125,145,165 and 175. B / 0 . / . 55 / . / . / . A/________________.0C 75 Determine the position of the notches(0) on BC that will produce the

    asked by Anonymous on January 20, 2016
  27. Physics

    The plates of a parallel-plate capacitor are separated by 0.303 mm. If the material between the plates is air, what plate area is required to provide a ca- pacitance of 3.78 pF ? The permittivity of a vacuum is 8.8542 × 10−12 F/m. Answer in units of m2

    asked by Anonymous on June 27, 2013
  28. geometry

    An oval indoor running track with semicircular ends has the dimensions of 80' long, 34' wide, and the individual lane width is 5' wide. If the track is to be resurfaced how many square feet of material will be required? Help Please!

    asked by Shelly on March 6, 2012
  29. statistics

    n employee produces 2,080 hours of work in the course of a year, how many employees will be required for the coding area if the coding time on average for one record is 30 minutes and there are 12, 500 records that must be coded each year?

    asked by Anonymous on October 22, 2014
  30. Chemistry

    Calculate the volume of 1.0 M copper(II) sulfate solution required to completely react with 1.0 g of Fe(s) according to this equation: 2 Fe(s) + 3 Cu^2+ (aq) --> 2 Fe^3+ (aq) + 3 Cu (s). the copper in the reactant has a charge of 2+ and the iron in the

    asked by Sabrina on March 6, 2013
  31. physics

    You own a yacht which is 14.5 meters long. It is motoring down a canal at 9.80 m/s. Its bow (the front of the boat) is just about to begin passing underneath a bridge that is 30.0 m across. How much time is required until its stern (the end of the boat) is

    asked by Thomas on November 30, 2010
  32. physics

    A high jumper wants to clear the bar at 2.1m. To do so he needs to raise his center of mass to a height of 2.4m. Assuming that air resistance can be neglected and his center of mass is 1.1m above the ground at take-off, determine the required vertical

    asked by jamie on March 25, 2012
  33. math

    For a motor vehicle traveling at r miles per hour, the distance d in feet required to stop is approximately d=0.05r^2 + r. If a school bus is traveling at 45 mph, how many feet, to the nearest foot would it travel?

    asked by Cynthia on December 15, 2013
  34. Applications

    I'm applying to the local Chamber of Commerce for a scholarship open to high school juniors to become ambassadors for our town, and it says that a cover letter and job resume are required. What should a cover letter be in this situation?

    asked by Katie on April 16, 2009
  35. FUW

    Chlorine is prepare by the reaction 2KmnO4 + 16Hcl 2Kcl + 2mncl2 + 5cl2 + 8H2O what mass of KmnO4 is required to prepare 500cm3 of chlorine gas at 73mmHg pressure at 25oC?

    asked by Julius Isaac Awudu on December 11, 2015
  36. accounts

    People from all over the world moving from sole proprietorship to partnerships due to the numerous benefits they get. You are required to tell why the focus is shifting from sole proprietorship to partnership? Explain your answer with the help of at least

    asked by fatima on May 1, 2014
  37. algebra

    The length of a rectangular field is 18 m longer than the width. The field is enclosed with fencing and divided into two parts with a fence parallel to the shorter sides. If 216 m of fencing are required, what are the dimensions of the outside rectangle?

    asked by Alex on August 8, 2010
  38. Chemistry

    84cubic centimeters of hydrogen chloride gas measured at s.t.p is dissolved in water and titrated with 0.15M sodium hydroxide.What volume of sodium hydroxide solution is required for complete neutralization?

    asked by Doris on September 23, 2016
  39. psychology (information booklet)

    I am required to do an information booklet on Cognitive Development in Childhood by Jean Piaget. What should be put inside this information booklet? Where can I find journals, pictures and other materials regarding this topic on the internet? Your help is

    asked by mic_ on June 29, 2009
  40. Chemistry

    Determine the volume of 0.250 M KOH solution required to neutralize each of the following samples of sulfuric acid. The neutralization reaction is: H2SO4(aq) + 2KOH(aq) = K2SO49aq) + 2H2O(l) Find: 15 mL of 0.250 M H2SO4

    asked by Kelsey G on December 1, 2010
  41. Math

    You want to make an investment in a continuously-compounding account over a period of three years. What interest rate is required for your investment to double in that time period? Round the logarithm value and the answer to the nearest tenth. is it 2.3

    asked by Anonymous on January 9, 2015
  42. chemistry question check

    consider the following chemical reaction: 2 H20 ---> 2H2 + O2 How many moles of H20 are required to form 1.8 L of O2 at a temperature of 315 K and a pressure of 0.957 atm? I got 0.066 moles. Correct? Nope. Do you have some reasoning that you followed you

    asked by Elisa on March 30, 2007
  43. Physics

    A ball is dropped from a height h without air resistance. If the ball falls a distance of h/2 in a time t, how much time is required to fall the remaining h/2? Could you show steps because I don't understand how to work the problem. Thank you.

    asked by Kevin on October 22, 2017
  44. please help my physics

    A child of mass 40kg jumps off a wall and hits the ground at 4m/s.He bends his knees and stops in 1s.Calculate the force required to slow him down.How would this force be d/t if he didn't bend his knees and stopped in 0.1s?

    asked by yaekob on March 21, 2016
  45. Precalculus

    You want to make an investment in a continuously compounding account over a period of two years. What interest rate is required for your investment to double in that time period? Round the logarithm value and the answer to the nearest tenth.

    asked by Ellie on November 1, 2015
  46. Math

    A recipe or trail mix calls for 1/4 cups of raisins, 1 1/2 cups of granola, 1/2 cup of mixed nuts, and 1/8 cup of chocolate chips. What fraction of each ingredient is required to make 5 1/2 recipes

    asked by Karen on September 25, 2015
  47. AE....

    outline the steps required for a multicultural education to be effective. Describe types of activities we could incorporate into a classroom that would support a multicultural education for all groups How could each group make a contribution to the

    asked by scooby91320002 on March 12, 2009
  48. physical science

    How many hours are required for a radio signal from a space probe near the dwarf planet Pluto, 6.00 x 10 (to the 9th) km away, to reach Earth? Assume that the radio signal travels at the speed of light, 3.00 10 (to the 8th) m/s.

    asked by joe on January 23, 2011
  49. Chemistry

    Suppose a student diluted and titrated a bleach unknown exactly as described in the experimental procedure, except only a single titration was performed which required 16.22 mL of 0.100 M Na2S2O3. Calculate the number of moles of Na2S2O3 used in the

    asked by Erin on March 1, 2017
  50. Physics

    A 200kg car is traveling at 50m/s on a level, circular track with radius 100m. What is the traction force required to keep the car on the track? a. 25000N b. 50,000N c. 10000N d. 2500N e. 5000N

    asked by Brooke on January 15, 2015
  51. Chemistry step by step thank a lot

    10L of hard water required 5.6g of line for removing hardness. hence temporary hardness in ppm of cac03. The answer is 1000 Pls solve it for me step by step Thank a lot all tutors for your help.

    asked by ken on July 5, 2014
  52. physics

    A skier of mass 72 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 65 m up a 30° slope (assumed frictionless) at a constant speed of 2.7 m/s? (b) What power must a motor have to perform this task?

    asked by Allie on March 21, 2011
  53. calcules

    cylindrical box will be tied up with ribbon as shown in the figure. The longest piece of ribbon available is 130 cm long, and 10 cm of that are required for the bow. Find the radius and height of the box with the largest possible volume.

    asked by jasmine22 on March 25, 2014
  54. Physcis

    A microwave runs off a 110. V circuit and draws 7.00 A of current. How much water would be required to run the microwave for 10.0 minutes if it is powered by a 10.0­m high water wheel? I really don't this question nor know what exactly i'm suppose to be

    asked by john jhon on April 25, 2016
  55. physics

    A child of mass 40kg jumps off a wall and hits the ground at 4m/s he bends his knees and stops in 1s calculate the force required to slow him down how would this force be different if he didn't bend his knees and stopped in 0.1s

    asked by Anonymous on December 22, 2016
  56. Chemistry step by step thank a lot

    10L of hard water required 5.6g of lime for removing hardness. Hence temporary hardness in ppm of cac03 The answer 1000 Who helps me to solve it for me step by step clearly Thank a lot all tutors

    asked by Ken on July 13, 2014
  57. Critical thinking

    Focus on the accuracy of the assumptions and conclusions. (In this step, explain how you kept a focus on the assignment to be clear about the requirements. For example, describe how you verified the assignment instructions and scoring guide to make sure

    asked by Tara on July 5, 2010
  58. business math

    A condo is advertised in The Wall Street Journal for $350,000. It states in the ad that a 20% down payment is required. The rate of interest is 11% on a 25-year mortgage. What would be (A) the monthly payment along with (B) the total cost of interest

    asked by tracie on September 1, 2012
  59. SCIENCE(CHEM101)

    iF 23.74Ml OF 0.01470m nAoh are required to completely neutrize 25.00mL of gastric juice,calculate the concentration of the hydrochloric acid(in g/L )in the stomach gastric juice.show steps and calculations

    asked by MAHLATSE on March 8, 2011
  60. PHYSICS!!!HELP!!

    The speed of a transverse wave on a string is 450 m/s, while the wavelength is 0.18m. The amplitude of the wave is 2.0mm. How much time is required for a particle of the string to move through a total distance of 1.0km? I NEED SOME HINTS TO DO IT!!!PLEASE

    asked by Loretta on March 2, 2008
  61. physics

    A plane accelerates from rest at a constant rate of 5.00 m/s2 along a runway that is 1800 m long. Assume that the plane reaches the required takeoff velocity at the end of the runway. What is the time tTO needed to take off?

    asked by Aly on September 18, 2015
  62. Algebra

    A man drove his automobile to New York, a distance of 550 miles, at a certain average rate. He returned from New York at the rate of 11 mph more. The entire trip required 22.5 hours. What were his rates returning and going?

    asked by Summer on April 15, 2014
  63. Chemistry

    A sample of air occupies 3.8 L when the pressure is 1.2 atm. (a) What volume does it occupy at 7.3 atm? (b) What pressure is required in order to compress it to 0.050 L? (The temperature is kept constant.) I already know the answers to each question, but

    asked by Alex on March 14, 2011
  64. Chemistry

    A 15.00 ml sample of a standard solution containing 1 g of CaCO3/L required 8.45 ml of EDTA to fully complex the Ca present. Calculate the volume of EDTA stoichiometrically equivalent to 1.0 mg of CaCO3.' Sorry, forgot to write the entire question.

    asked by Anonymous on February 28, 2010
  65. chemistry step by step clearly

    10L of hard water required 5.6g of lime for removing hardness. hence temporary hardness in ppm of cac03. The answer 1000ppm I really want all tutors to solve it form clearly step by step. Thank a lot

    asked by Ken on July 20, 2014
  66. Math

    Ren currently owes $5000 to a friend who is charging him interest of 3.00%p.m. He is required to settle the loan with two equal payments one today and the other in 3 months. Calculate the size of the payments using 3 months as the focal date

    asked by Ina on January 26, 2017
  67. Chemistry help

    I am not to sure how to approach the problem... Hydrazine is used as a rocket fuel because its reaction with oxygen is extremely exothermic: N2H4(liquid) + O2(g) ==> N2(g) + 2H2O(liquid) ΔH(reaction) = -615 kJ mol-1 What is the enthalpy of this reaction

    asked by Anonymous on May 11, 2014
  68. chemistry

    When carbon dioxide is heated in a closed container, it decomposes into carbon monoxide and oxygen according to the following equilibrium equation: 2CO2(g) ---> 2CO(g) + O2(g) When 2.0 mol of CO2(g) is placed in a 5.0-L closed container andheated to a

    asked by Thomas on March 31, 2008
  69. AP Chemistry

    Suppose the three gases were placed at 1.00 atm and 273 K in closed containers, as shown below. A tiny hole is opened in each container, allowing each gas to diffuse into another container filled with neon gas. What is the ratio of the rate of diffusion of

    asked by Anonymous on March 26, 2016
  70. Chemistry

    Both ethanol (CH3CH2OH, MM=46.07g/mol) and methanol (CH3OH, MM=32.04g/mol) have been considered as fuels for automobiles. Which is the better fuel, on a per gram basis, when burned with oxygen? CH3CH2OH(g) DeltaHf(KJ/molrxn) = -235.10 H3OH (g)

    asked by Sarah on April 7, 2016
  71. chemistry

    calculate the mass of kool aid required to prepare 200.0 ml of 0.30 M kool aid

    asked by ana on March 27, 2012
  72. Physics

    Why is more fuel required for spacecraft to travel from the earth to the moon than to return from the moon to the earth?

    asked by Stuck on November 6, 2016
  73. Chemistry

    The heat capacity of lead is 0.13 J/g•°C. How many joules of heat would be required to raise the temperature of 15 g of lead from 22°C to 37°C?

    asked by Helen on September 18, 2012
  74. Chemistry

    How much energy is required to heat 36.9g of ice at 0 degrees celsius to water at 0 degrees celsius?

    asked by Maria on March 3, 2013
  75. Chemistry

    How many gallons of water at 70 deg. F is required to cool a gallon of water at 212 deg f?

    asked by Fritz on April 7, 2016
  76. chemistry

    how much energy i kj is required to change the temp of 1.00 kg of fe from 25.0 degrees celsius to 1515 degrees celsius?

    asked by danielle on April 4, 2010
  77. Chemistry

    Calculate the mass of NaOH pellets required to prepare 1litre of 0.1Litre NaOH

    asked by Innocent on October 14, 2013
  78. Chemistry

    Calculate the mass of NaOH pellets required to prepare 1litre of 0.1Litre NaOH

    asked by Innocent on October 14, 2013
  79. Chemistry

    How much heat is required to warm 1.60kg of sand from 22.0∘C to 100.0∘C? The heat capacity of sand is 0.84 J⋅g−1⋅K−1

    asked by Steve Smeck on October 30, 2014
  80. Chemistry

    How much heat is required to bring 1.0kg of water from 25 degrees celsius to 99 degrees celsius?

    asked by Kayla on October 26, 2012
  81. Chemistry

    Calculate the mass of NaOH pellets required to prepare 1litre of 0.1Litre NaOH

    asked by Innocent on October 14, 2013
  82. chemistry

    required to heat 38.0 g of copper (cu) from 122 degree celsius to 246 degree celsius

    asked by Anonymous on September 14, 2012
  83. Chemistry

    How much heat is required to raise the temperature of 68.0 g of AIF3 from 25 degrees celsius to 80.0 degrees celsius

    asked by person on October 29, 2014
  84. calculus

    The slope of a curve is at the point (x,y) is 4x-3. Find the curve if it is required to pass through the point (1,1). Work... 4(1)-3=1 y-1=1(x-1) y=x

    asked by Anonymous on November 18, 2007
  85. Biology

    how many mL of concentrated (15 M) hydrochloric acid (HCL) are required to prepare 500 mL of 6 M hydrochloric acid?

    asked by Neika on October 4, 2011
  86. Chemistry

    A 5.0 mL sample of HCl is placed in a flask. Titration required 15.0 mL of .20 M NaOH. What is the molarity of the HCl in the sample?

    asked by Michael on March 24, 2013
  87. Chemistry

    How many mL of a stock 2.50M HCl solution are required to prepare 25.0 mL of a 0.15M HCl solution?

    asked by Hannah on November 24, 2014
  88. Physics

    The work W0 accelerates a car from 0 to 20 km/h. How much work (in terms of W0) is required to accelerate the car from 20 km/h to 100 km/h?

    asked by Caleb on December 30, 2014
  89. chemistry

    what volume of a 0.5M solution of sulphuric acid is required to prepare 2 litres of a 0.4M solution of the acid

    asked by Apoorva on July 27, 2016
  90. chemisty

    how many mL of a stock 2.50M HCI solution are required to prepare 25.mL of a 0.15M HCI solution?

    asked by latrese on November 23, 2014
  91. chemistry

    determine the molarity of a 18 ml sample of HCl solution that is required to prepare 30 ml of 2.3 M HCl solution?

    asked by linda on February 11, 2011
  92. Math

    A tile is 38 cm long and the space between the tiles is 0.8. How many tiles are required to build a floor 5.82 m long?

    asked by Chris on October 19, 2011
  93. chemistry

    what weight of sodium hydroxide(NaOH) is required to make 20ml of 5% (w/v) sodium hydroxide?

    asked by 97896 on August 20, 2011
  94. Math

    A tile is 38 cm long and the space between the tiles is 0.8. How many tiles are required to build a floor 5.82 m long?

    asked by Chris on October 19, 2011
  95. chemistry lab

    what is the number of moles of a 0.05 M KMnO4 solution that react with 20 ml of a 0.02 M solution of FeCl2 if 75 ml of KMnO4 was required

    asked by shawnette on March 22, 2018
  96. Chemistry 2

    Styrene, C8H8, is one of the substances used in the production of synthetic rubber. When styrene burns in oxygen to form carbon dioxide and liquid water under standard-state conditions at 25°C, 42.62 kJ are released per gram of styrene. Find the standard

    asked by Nick on February 6, 2011
  97. chemistry please help

    Styrene, C8H8, is one of the substances used in the production of synthetic rubber. When styrene burns in oxygen to form carbon dioxide and liquid water under standard-state conditions at 25°C, 42.62 kJ are released per gram of styrene. Find the standard

    asked by Jazmin on October 18, 2010
  98. Chemistry

    Nitrogen Dioxide NO2 decomposes upon heating to form nitric oxide and oxygen according to the following equation: 2NO2(g) --> 2NO(g) + O2(g) At the beginning of an experiment the concentration of nitrogen dioxide in a reaction vessel was 0.113 mol/L. After

    asked by Lauren on February 17, 2008
  99. Chemistry. Please help!

    For the problems below, I have the answers written but from questions d-i, I don't understand how they got the answer. I tried doing it and somehow I messed up with the formula with 3/2 and 5/2 so please show work on how they got the answers for d-i. In

    asked by JJ on February 28, 2012
  100. Co-operate Finance

    As the investment analyst for King breweries you are required to analyze the automated loom system in the Castle larger production line. The old system was purchased 5 years ago for $200,000. It falls in the accelerated cost recovery 5 year class and it

    asked by Patricia on March 24, 2015