1. Chemistry

    Ok so reviewing my notes I also got 11,326.6 as the volume in ml. The density of water he wanted us to use was (0.9975) and I went from 1 gal of H2O = 3.785 liters = 3785 grams then multiplied by 3 giving me 11,355g H2O. The only other step I could come up

    asked by Holly on September 25, 2012
  2. science chemistry

    1000g of a 55%(mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution.how many liters of water should be added to the starting solution?

    asked by Muhammad on November 5, 2012
  3. science chemistry

    1000g of a 55%(mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution.how many liters of water should be added to the starting solution?

    asked by Muhammad on November 5, 2012
  4. mixture problem

    Lisa will make punch that is 25% fruit juice by adding pure fruit juice to a 2-liter mixture that is 10% pure fruit juice. How many liters of pure fruit juice does she need to add?

    asked by Marie on May 29, 2008
  5. Chemistry

    1000 g of 55%(mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution. How many liters of water should be added to the starting solution?

    asked by Wube on May 2, 2012
  6. chemistry

    for this question How many liters of H2 gas at STP are produced when Zn reacts with 125 mL of 6.00 M HCl? my book answers it this way: 0.125 L x 6.00 mole HCl x 1 mole H2 x 22.4 L 1 L 2 mole HCl 1 mole = 8.40 L of H2 gas where did the 22.4L come from?

    asked by Blain on April 13, 2011
  7. Chemistry

    a) An equilibrium exists between three chemical species in the blood , Hemoglobin, oxygenated hemoglobin and oxygen. Using the symbols Hb for hemoglobin , O2 for oxygen and HbO2 for oxygenated hemoglobin write out the equilibrium reaction. If you have

    asked by AB on November 26, 2011
  8. Marketing (Help Check)

    24.Which of the following is characteristic of the organizational buying process? A)Multiple parties participate in purchase decisions. B)Negotiation between buyers and sellers is commonplace. C)Online buying over the Internet is widespread. D)Buying

    asked by Bryan on November 9, 2009
  9. Finance

    Your company, Martin Industries, Inc., has experienced a higher than expected demand for its new product line. The company plans to expand its operation by 25% by spending $5,000,000 for an additional building. The firm would like to maintain its 40% debt

    asked by Miss Patte on November 2, 2015
  10. Chemistry

    solution of hydrogen peroxide, H2O2 , is titrated with potassium permanganate, KMnO4 , according to the following equation: 5 H2O2 + 2 KMnO4+ 3H2SO4 -> 5O2 + 2 MnSO4 +8H2O + K2SO4 It requires 46.9mL of 0.145 mol/L KMnO4 to titrate 50.0 mL of the solution

    asked by Brenan on March 31, 2008
  11. physics

    Sewage at a certain pumping station is raised vertically by 5.27 m at the rate of 1 930 000 liters each day. The sewage, of density 1 050 kg/m3, enters and leaves the pump at atmospheric pressure and through pipes of equal diameter. (a) Find the output

    asked by Anonymous on March 8, 2012
  12. Physics

    Sewage at a certain pumping station is raised vertically by 5.57 m at the rate of 1 860 000 liters each day. The sewage, of density 1 050 kg/m3, enters and leaves the pump at atmospheric pressure and through pipes of equal diameter. (a) Find the output

    asked by Michelle on March 16, 2013
  13. metaphor

    What in this sentence is a metaphor? I have three candles here on the table which I disentangle from plants and light when visitors come. Small usually avoids them, although once she came too close and her tail caught fire; I rubbed it out before she

    asked by anonymous on August 30, 2006
  14. Chemistry

    Acetylene(C2H2) torches are used in welding. How much heat (in kJ) evolves when 2.0L of C2H2 (d=1.0967kg/m3) is mixed with a stoichiometric amount of oxygen gas? The combustion reaction is C2H2(g)+52O2(g)→2CO2(g)+H2O(l), ΔH∘=−1299.5kJ

    asked by Kelly on March 25, 2014
  15. Chemistry

    What is the percent by mass of C in methyl acetate (C3H6O2)? The molecular weight of carbon is 12.0107 g/mol, of hydrogen 1.00794 g/mol, and of oxygen 15.9994 g/mol. Answer in units of %. Please work it out for me so I totally understand it. Thanks!

    asked by Randy on December 6, 2009
  16. Chemistry

    The reaction describing the formation of ozone from oxygen is shown below. 3 O2(g) 2 O3(g) Calculate Grxn at 288 K for this reaction in a flask where [O2] = 3.419 x 10-2 M and [O3] = 5.783 x 10-4 M. Assume G° = 326 kJ. Use molarity to construct the

    asked by Summer on January 2, 2012
  17. Chemistry

    Um how do i balance these word equations for chemistry... I think I'm suppose to look them up on a common table of ions and then I don't know wat to do ferric Oxid --> iron oxygen what exactly am i suppose to do please tel me thr throught process that's

    asked by Bob on December 11, 2008
  18. Math

    It is a beautiful sunny day at the fair. The U.V. index for this day is 8 or higher so sunscreen is a must. The effectiveness of sunscreen is indicated by the sunscreen protection factor (SPF). The higher the SPF number the less U.V. rays can penetrate to

    asked by emily on April 10, 2018
  19. chemistry

    what is the molarity of a solution made by mixing 178.5 of 1.5 M NaCl with 283.4m of 4.3M NaCl Mnacl*L nacle =(1.5)(.001718)=.0026775 moles nacl=(4.3)*(.002834)=.0121862 total moles = .0026775+.0121862=.0148moles final volume = .001785+.002834=.004819 L

    asked by amber on October 3, 2010
  20. Math

    A hall measures 16m by 12m.How many square tiles of side 4m will be required to pave its floor?

    asked by Arju on December 2, 2016
  21. Physics

    Eight books, each 4.1 cm thick with mass 1.8 kg, lie flat on a table. How much work is required to stack them one on top of another?

    asked by Linda on November 10, 2010
  22. Chemistry

    What volume of 0.0495 M Ba(OH)2 is required to neutralize exactly 14.87 mL of 0.136 M H3PO4? Phosphoric acid contains three acidic hydrogens.

    asked by Amy on October 19, 2015
  23. Chemistry

    How many grams of solute are required to make a 789 mL solution of calcium acetate with a concentration of 0.0049 M?

    asked by Dan on May 16, 2016
  24. Chemistry

    What volume of 18.00 M HCl is required to completely neutralize 750.0 kg of barium hydroxide at 25.0 degrees C and 760 mm Hg?

    asked by Sean P. on June 8, 2010
  25. Chemistry

    What volume of 0.120 M Na3PO4 is required to precipitate all the lead(II) ions from 300.0 mL of 0.200 M Pb(NO3)2?

    asked by Amy on October 19, 2015
  26. economics

    where will i be able to find the % of bank reserve ratio required by banks for each country? all i know is that in uk its 10% and USA there is no limit n the amount you need to keep

    asked by izy on November 3, 2009
  27. trig

    What would be the force required to push a 100-pound object along a ramp that is inclined 10 degrees with the horizontal?

    asked by greenburrow on March 19, 2012
  28. Medical Billing

    1. Hospitals 2.Insurance forms 3.Billing services 4.none of the above Which one of the above words are required to keep a list of acceptable abbreviations?

    asked by Devon on July 5, 2012
  29. Chemistry

    Calculate what mass of argon gas is required to full a 20.4-L container to a pressure of 1.09 atm at 25C

    asked by Anonymous on March 30, 2010
  30. chemistry

    what mass of water is required for the formation of 175 grams of carbon monoxide? please show work

    asked by Anonymous on November 1, 2011
  31. Chemistry

    If 25.0 mLs of 0.150M nitric acid was used, how many grams of barium carbonate would be required for complete reaction?

    asked by Jessica on July 2, 2013
  32. Chemistry

    What volume of a 0.50 M solution of H2SO4 is required to completely neutralize 3.0 grams of NaOH? Write the equation.

    asked by Nick on October 8, 2012
  33. chemistry

    How much energy is required to raise the temperature of 3 kg of lead from 15C to 20C? Use the table below and this equation: Q = mcT.

    asked by bebe on October 9, 2012
  34. AP Chemistry

    Determine the volumes of 0.10 M CH3COOH and 0.10 M CH3COONa required to prepare 10.0 mL of buffer of each of the following pH values? a. Ph 3.7 b. pH 5.7 C. pH 5.7 I just need to see how to do one of them and I'll understand how to do the rest.

    asked by david on April 22, 2015
  35. Chemistry

    What mass of H2O is required to form 1.2 L of O2 at a temperature of 310 K and a pressure of 0.950 atm? 2H2O (l) ---> 2H (g) + O2 (g)

    asked by Lisa on November 10, 2010
  36. Chemistry

    How many grams of solute are required to make a 976 mL solution of sodium hydroxide with a concentration of 0.0783 M?

    asked by Alex on May 16, 2016
  37. chemistryB

    How much heat is required to decompose 25.5 grams of NaHCO3? 2NaHCO3(s) + 129 kJ 2Na2CO3(s) + H2O(g) + CO2(g)

    asked by jane doe on July 22, 2011
  38. physics

    What is the magnitude of force required to accelerate a car of mass 1.7 × 10³ kilograms by 4.75 meters/secondÆ?

    asked by Anonymous on September 13, 2017
  39. algebra

    A traveler required a total of 12 h on the round trip, averaging 20mi/h and 30 mi/h. Find a time in hours going using a T for this.

    asked by ER on November 30, 2014
  40. physics

    What initial mass of 235U is required to operate a 650-MW reactor for 1 year? Assume 40% efficiency.

    asked by Anonymous on May 6, 2009
  41. science

    calculate the mass of Cuso4.5H2O required to prepare 500 cm3 of a 0.400 m/dm-3 solution

    asked by alice on June 8, 2014
  42. chemistry

    calculate the mass of Cuso4.5H2O required to prepare 500 cm3 of a 0.400 m/dm-3 solution

    asked by alice on June 8, 2014
  43. chemistry

    Please help again. How many grams of lithium are required to completely react with 70.7 mL of N2 gas at STP when given the following reaction: 6Li + N2 = 2Li3N

    asked by Lisa on December 4, 2011
  44. chemistry

    What is the formula used to solve the problem: How many milliliters of 1.171 M HCl are required to react with 7.69 grams of CaCO3 ?

    asked by Paige on March 5, 2010
  45. Chemistry

    If vinegar sample #1 requires 29.05 mL of NaOH solution to reach an endpoint, what volume should be required for samples #2 and #3?

    asked by Gladys on November 3, 2014
  46. Chemistry

    What mass of Pb(No3)2 would be required to yield 9g of 3PbCl2 on the addition of excess sodium chloride solution

    asked by Jossy on September 27, 2015
  47. Chemistry

    How much heat is required to vaporize 343g of liquid ethanol at its boiling point? ΔHvap+38.6 Kj\mol

    asked by Anonymous on February 23, 2010
  48. chemistry

    How many grams of water are required to dissolve 27.8g of NH4(NO3)(MM=80.05 g/mol)to make a 0.500M solution?

    asked by Carrie on March 4, 2012
  49. Chemistry

    Calculate the minimum time, in minutes, required to deposit 40g of copper using a current of 20A.

    asked by kat on January 19, 2017
  50. physics

    A body of specific gravity 3.0 is immersed in water. What is the minimum force required to pull it out at velocity 2

    asked by divya on July 25, 2011
  51. chemistry

    Silver is electroplated at the cathode of an electrolysis cell by 1/2 reaction Ag(aq) + e- --> Ag(s). How many moles of electrons are required to electroplate 5.8g of Ag?

    asked by Ashley on November 30, 2011
  52. Topic on Florida

    My daughter is in fifth grade & she is required to do a five minute oral report on Oranges from Florida with props. Do you have any ideals?

    asked by Wanda on April 10, 2011
  53. algebra

    The length of a rectangular field is 18 m longer than the width. If 216 m of fencing are required, what are the dimensions of the outside rectangle?

    asked by Anonymous on August 8, 2010
  54. chemistry

    Balance this equation. If a coefficient of "1" is required, choose "blank" for that box. CH4 + O2 → CO2 + H2O

    asked by derek on May 2, 2016
  55. chemistry

    What mass of steam is required to release 4.36 × 105 kJ of heat energy on condensation? answer in unit of g.

    asked by Anonymous on December 2, 2011
  56. chemistry

    For each titration of a buffer, how do i calculate how many mLs of titrant were required to obtain a 1.00 pH unit change from the initial pH?

    asked by Wendy on February 27, 2011
  57. Chemistry

    What mass of copper(ii) sulphate(GFM=159.5) is required to make 400cm3 of 0.5mol/l solution

    asked by Callum on March 31, 2016
  58. Chemistry

    How many calories are required at 0 degrees C to melt an ice cube with a mass of 25g? I got 2000 cal. Could you tell me if this is right?

    asked by Eric on September 19, 2010
  59. Chemistry

    What is the HCl concentration if 65.8mL of 0.300M NaOH is required to titrate a 15.0mL sample of the acid?

    asked by Ken on December 18, 2014
  60. chemistry

    how many kilojoules of energy are required to bring 800.0g water from 20.0c to the boiling point. not sure what formula is? 4.184j

    asked by melissa on September 11, 2015
  61. chemistry

    calculate the weight of oxalic acid required to neutralise 250 ml, 0.1 normal KOH sollution?

    asked by Anonymous on September 8, 2013
  62. chemistry

    how much heat is required to raise the temperature of one mole of NaCl(s) by 15 degrees celsius at constant pressure

    asked by emoni on February 23, 2011
  63. chemistry

    1) what mass of lead(ii) acetae is required to be dissolved in a 500.0ml volumetric so that the acetate is equal to 1.48?

    asked by Riana on December 15, 2012
  64. chemistry

    What volume of a 0.34M MgCI2 soultion is required to make 250ml of a 0.10M solution by dillution?

    asked by twynna on February 20, 2011
  65. science

    Determine the kinetic energy required to throw a 500g ball vertically to a height of 9.20m?

    asked by Kate on September 18, 2018
  66. chemistry

    Calculate the total amount of heat (in calories) that would be required to convert 15.0 g of ice at 0 oC to 15.0 g of steam at 100 oC.

    asked by david drame on April 27, 2012
  67. Physics

    I don't understand what formula to use for this question: Points A and B each have an electric potential of +9 V. How much work is required to take 1 mC of charge from A to B? Thank you

    asked by Anna on July 19, 2016
  68. chem

    What mass of lithium (in g) is required to react completely with 59.1 mL of gas at STP? given the equation 6Li+N2=2Li3

    asked by Anonymous on June 13, 2009
  69. Chemistry

    Calculate the amount (volume) of 0.135 M HClO4 solution required to neutralize 57.00 mL of .089 M NaOH

    asked by Vicky on October 7, 2012
  70. math

    If an injectable drug contains 25mcg/0.5ml, how many mls will be required to provide a patient with a dose of 0.25mg?

    asked by Vicki on January 31, 2012
  71. chemistry

    How do I solve this? How many grams of solid NaOH are required to prepare 200 mL of a 0.05 M solution? What will be the concentration expressed in % W/V?

    asked by stew on February 1, 2008
  72. chemistry

    In the previous example, how many ml of 0.1M KMN04 are required to react with 30ml of 0.05M H202? The answer 3ml Who helps

    asked by Fai on January 13, 2013
  73. chemistry

    In the previous example, how many ml of 0.1M KMN04 are required to react with 30ml of 0.05M H2o2? The answer 3ml who helps

    asked by Fai on January 13, 2013
  74. maths

    a rectangular courtyard is 57 cm 50 cm long and 22 m . determine the least possible number of square stones of the same size required to pave it.

    asked by maths on July 16, 2016
  75. Chemistry

    What is the HCl concentration if 72.1ml of 0.035M NaOH is required to titrate a 20.0ml sample of the acid?

    asked by Sara on July 18, 2012
  76. chemistry

    How much limestone (CaCO3) in kilograms would be required to completely neutralize a 5.2 x 109 --L lake containing 5.0 x 10 -3 of H2 SO4 per liter?

    asked by seth on June 28, 2010
  77. Geometry

    Perimeter of a right angled trangle is 40 cm. Hypotenus is 17cm. Find the area. Urgent help required. Thanks in advance

    asked by Deepak on March 7, 2010
  78. physics

    What is the required resistance of an immersion heater that will increase the temperature of 2.00 kg of water from 10.0°C to 50.0°C in 9.0 min while operating at 120 V?

    asked by Machelle Butts on February 16, 2010
  79. physic

    Eight books, each 8.5 cm thick with mass 1.3 kg, lie flat on a table.How much work is required to stack them one on top of another?

    asked by Anonymous on October 14, 2010
  80. Federal polytechnic, oko

    What force would be required to accelerate an electron mass of 0.009kg from rest to a velocity of 104m/s in 10 seconds.

    asked by Chris on October 27, 2015
  81. Chem 11

    How many grams of O2 are required to produce 255grams of SO2 in following reaction? 4FeS2+11O2===> 2Fe2O3+8SO2

    asked by Emmy on October 20, 2010
  82. Physics

    if a machine is capable of accelerating at a constant speed of +20.0m/s^2 calculate the time required for it to go from -5.00m/s to +55m/s

    asked by Sarah on October 1, 2017
  83. Ochem

    What volume of 6.83% (wt./vol.) NaOCl solution is required to oxidize 223 mg of 9-fluorenol to 9-fluorenone? Please help me set this up!

    asked by Darby on February 1, 2012
  84. physics

    How many calories of heat are required to convert 230 grams of ice at -10.0C to a gas with a temperature of 1500C?

    asked by michelle on November 15, 2011
  85. Chemistry

    how many milliliters of 0.0850 m naoh are required to titrate 50.0 ml of a solution that contains 1.85 g of hcl per liter to the equivalence point?

    asked by Charles Maxey on February 23, 2011
  86. physics

    A motorcycle of mass 350kg has an acceleration of 3m/s when the resistance against motion is 200N.Calculate the force required

    asked by sela on February 27, 2015
  87. Chemistry

    Calculate the mass of HONH2 required to dissolve in enough water to make 255.5 mL of solution having a pH of 10.02 (Kb = 1.110−8).

    asked by Margaret on February 28, 2013
  88. Math

    What nominal annual rate of interest compounded yearly is required to double an investment in 13 years?

    asked by Lexie on November 11, 2012
  89. College Chemistry

    Calculate the ratio of NaF to HF required to create a buffer with pH=3.95. Also, can you please explain in a nutshell the whole concept of buffers? Thanks!

    asked by Katie on March 24, 2010
  90. Physics-science

    what is the heat required in kilo calories to covert 2kg of ice at 0 c completely into stream at 100c

    asked by sherrie on December 13, 2013
  91. Chemistry

    What volume of 85% H3PO4(d=1.68g/mL) and weight of KH2PO4 are required to prepare a buffer of pH=3 that has an ionic strength of 0.2?

    asked by Sam on April 13, 2012
  92. chemistry

    What volume of 2M HCl would be required to completly react with 0.314g of Zn? what mass of hydrogen gas would be produced?

    asked by jamieson on January 16, 2010
  93. math

    a ground is 80m wide& 60m long. how much wire is required for fits fencing in two rows.

    asked by anita on April 22, 2014
  94. Chemistry

    How do I calculate the mass of sodium carbonate required to neutralize 15-20 mL of 0.25M HCl at the stoichiometric point?

    asked by Joel on May 17, 2012
  95. chemistry

    In the previous example, how many ml of 0.1M kmn04 are required to react with 30ml of 0.05M h202? the answer 3ml who helps

    asked by Fai on February 10, 2013
  96. Chemistry

    Calculate the mass of HONH2 required to dissolve in enough water to make 255.5 mL of solution having a pH of 10.02 (Kb = 1.110−8).

    asked by Margaret on February 27, 2013
  97. chemistry

    What volume of 0.076M HNO3 is required to titrate 20.0ML of 0.25M Ba(OH)2 solution? use 2 sig figures

    asked by jennifer on June 16, 2015
  98. chemistry

    what volume of chlorine is required to produce 25.4grams of copper II chloride at 18 degrees celsius and 2.13 atm

    asked by becky on February 21, 2017
  99. chemistry

    What stoichiometric concentration of the indicated substance is required to obtain an aqueous solution with the pH} value shown below? aniline (C6H5NH2) for PH of 8.90

    asked by anonymous on April 11, 2010
  100. physics

    How much work is required to completely separate two charges (each -1.9 microC ) and leave them at rest if they were initially 6.0mm apart?

    asked by Lanise on January 31, 2010