1. AP Bio (but its a question about chemistry)

    i have no idea how to do this! Calculate the volume of the specified titrant required to neutralize 35 ml of .4 M NaOH. Titrant: 0.75 M H2SO4 [2NaOH + H2SO4 „» 2H2O + Na2SO4]

    asked by katie on July 24, 2011
  2. chemistry

    Calculate the volume of the specified titrant required to neutralize 35 ml of .4 M NaOH. Titrant: 0.75 M H2SO4 [2NaOH + H2SO4 „» 2H2O + Na2SO4]

    asked by luv2swim on July 24, 2011
  3. Redox Titration questions!

    Oh goodness, I'm such a pain! I need some help with these! How do I calculate the percentage? How do I start it? 2. Imagine that you ran a similar titration using a different iron sample with 0.02 M KMnO4 as the titrant. Calculate the percent of iron in

    asked by Angel on June 11, 2008
  4. Chem 104

    From M1V1=M2V2 the volume of the KHP solution the molarity of the titrant and the volume of the titrant, find the molarity of the KHP solution . The KOH solution is the titrant since it is used to titrate the KHP solution. KHP mass-204.2 Mass per liter in

    asked by Hannah Marie on November 10, 2016
  5. chemistry

    Calculate the pH values and draw the titration curve for the titration of 500 mL of 0.010 M acetic acid (pKa 4.76) with 0.010 MKOH. Calculate the pH of the solution after 490 mL of the titrant have been added. Calculate the pH of the solution after 500 mL

    asked by Crystal on February 3, 2017
  6. chemistry

    Calculate the pH values and draw the titration curve for the titration of 500 mL of 0.010 M acetic acid (pKa 4.76) with 0.010 MKOH. Calculate the pH of the solution after 490 mL of the titrant have been added. Calculate the pH of the solution after 500 mL

    asked by Jasmine on January 31, 2017
  7. Chemistry

    The equivalence point of any acid titrated with a base occurs when the A. concentration of the acid and concentration of the titrant are equal. B. mass of the acid and the mass of the titrant are equal. C. pH of the mixture of the acid and titrant is 7.0.

    asked by coco on August 14, 2015
  8. Chemistry

    Calculate the theoretical pH after 2.50 mL and 9.50 mL of NaOH has been added in both the titration of HCl and of HC2H3O2. Indicate if the volume of NaOH is before or after the equivalence point. Compare these theoretical values with the actual values

    asked by agreed on July 14, 2010
  9. Chemistry

    You run a titration using HCI as the sample with 3.56M KOH as the titrant. Calculate the concentration of the HCI if the sample size were 25 mL, and if the volume of the titrant used were 29.6 mL.

    asked by Jared on April 10, 2008
  10. General Chemistry

    Calculate the theoretical pH after 2.50 mL and 9.50 mL of NaOH has been added in both the titration of HCl and of HC2H3O2. Indicate if the volume of NaOH is before or after the equivalence point. Compare these theoretical values with the actual values

    asked by Ashley on November 6, 2011
  11. CHM

    How much titrant will be required if your EDTA titrant is exactly 0.01 M and you weighed out exactly 0.4 g calcium carbonate?

    asked by Jesica on September 21, 2014
  12. CHM Lab

    How much titrant will be required if your EDTA titrant is exactly 0.01 M and you weighed out exactly 0.4 g calcium carbonate?

    asked by Haju on September 21, 2014
  13. chemistry pH

    A 25 mL sample of 0.29 M LiOH analyte was titrated with 0.75 M HI at 25 degree Celsius. 1)Calculate the initial pH before any titrant was added. 2) Then calculate the pH of the solution after 5 mL of titrant was added.

    asked by Mizuhara on October 13, 2014
  14. chemistry

    What volume of titrant would be required to reach the equivalence point in the titration of 25.0 mL and 0.825M CH3NH2 with 1.00 M HCL?

    asked by Anonymous on October 19, 2011
  15. 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
  16. Chemistry - please help

    Please help to determine the (%w/w) benzoyl peroxide (C14H20O4) in a sample. Procedure: 2.500g of sample was dissolved in 75ml dimethylformamide and diluted to 100.0ml with the same solvent. (Solution T). To 5.0ml of Solution T, 20ml of acetone and 3ml of

    asked by angela on August 3, 2010
  17. chemistry

    1. the volume of an idea gas is 2.06L at standard temperature and pressure. Calculate the volume at 1.75 atm and 27CELCIUS. 2. Ethane, C2h6 has a molar heat of vaporization of 15kj/mole. How many kilojoules or energy are required to vaporize 5 g of ethane?

    asked by stephanie on December 1, 2009
  18. Chemistry

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

    asked by Joe on March 21, 2007
  19. Chemistry check

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

    asked by Joe on March 21, 2007
  20. Chemistry

    My head is spinning from this chapter! I've done most of the questions by myself but I have no idea what formulas I should use for these last two. Can you walk me through them so I can understand what I need to do? 1. What volume of 5.0 M HNO3 is required

    asked by Lissa on September 26, 2014
  21. Chemistry

    A 25.00 ml sample of a standard solution containing 1 g of CaCO3/L required 25.20 ml of EDTA to fully complex the Ca present. Calculate the volume of EDTA stoichiometrically equivalent to 1.0 mg of CaCO3. From the volume of EDTA required in titrating the

    asked by Anonymous on March 14, 2010
  22. Repost-Chemistry -please help

    Hi, sorry I missed out something. The titrant used was 0.100M Sodium thoiosulphate.Do I have to consider its concentration in the calculations? Thanks a lot. Posted by angela on Tuesday, August 3, 2010 at 6:58pm. Please help to determine the (%w/w) benzoyl

    asked by angela on August 3, 2010
  23. chem TITRATION

    1. If a student fails to remove a large air bubble in the buret before beginning the titration, what will be the effect on the volume of titrant required to reach the titration endpoint? A. The student will record a volume that is SMALLER than it should be

    asked by A on May 25, 2018
  24. Chemistry

    Analysis of Tap water (Hardness) 50.00 mL of tap water was transferred to a 250 mL erlenmyer flask. 10mL of NH3/NH4^+ ph 10 buffer was added to the flask, as well as 6 drops of eriochrome black T indicator. This soln was then titrated with EDTA

    asked by Lauren--PLEASE HELP on November 29, 2009
  25. Chemistry

    How do you calculate the volume of titrant needed to reach the endpoint of a reaction when you are given the mls and molarity of a strong base and only the molarity of a weak acid?

    asked by Annie on April 10, 2009
  26. Chemistry

    Volume of HCl, mL:26.5mL Volume of NaOH,mL:29.1mL Molarity of NaOH, mol/L:0.1m/L balanced equation: NaOh+HCl-->NaCl+H2O Using the above equation calculate the number of moles of acid required to react with 2.91 moles of base. Please help me I have no idea

    asked by Gaby on May 28, 2012
  27. Applied Programming

    APPLIED PROGRAMMING (APR520S) ASSIGNMENT 1 Problem Solving Tools Total Marks: 50 Marks Due: Friday 22 August 2014 Suppose we want to construct a C/C++ program that can be used to calculate the area or the volume for a range of 2-D and 3-D shapes

    asked by Pineas on August 19, 2014
  28. chemistry

    According to the experiment procedure, given that the NaOH solution has a concentration of 0.100M, and that the vinegar (acetic acid) has a concentration of 5.0% m/m (mass percent), what volume (mL) of titrant would be required to reach the “equivalence

    asked by sheyla on July 26, 2010
  29. Chemistry

    According to the experiment procedure, given that the NaOH solution has a concentration of 0.100M, and that the vinegar (acetic acid) has a concentration of 5.0%m/m (mass percent), what volume(mL) of titrant would be required to reach the "equivalence

    asked by Pauline on July 29, 2014
  30. chemistry

    Ethanol ( C2H5OH) undergoes a reaction with oxygen gas in the air. Calculate the volume (l) of oxygen gas at 45 degrees celcius and mmHg that is required to react with 185 g ethanol. Then calculate the volume of air required to react with 185 g assuming

    asked by Anonymous on October 30, 2017
  31. science-chem- theory questions

    please, help me.. i think i know the answers, but i just want to make sure! i'd love your feed back :) 1) an air bubble is trapped in the tip of a buret before a titration. during the titration, the bubble is passed from the buret tip. will the reported

    asked by sarah on March 22, 2011
  32. Chemistry Titration Lab HELP!

    Hi everyone! I just got a new lab that I MUST complete today, and it's about titration- I have absolutely no clue how to do it, it just doesn't make sense to me! I hope that someone can help explain to me how to do it so I can finish ASAP!! Thanks a lot,

    asked by Angel on June 11, 2008
  33. Chemistry

    A chemist performs an acid–base titration using 0.176 M aqueous NaOH as the titrant with 26.15 mL of 0.102 M H2SO4. The endpoint of the titration is detected using phenolphthalein as the indicator. The balanced equation for the reaction is shown below:

    asked by Onye on March 4, 2018
  34. Chemistry

    According to the experiment procedure, given that the NaOH solution has a concentration of 0.100M, and that the vinegar (acetic acid) has a concentration of 5.0%m/m (mass percent), what volume(mL) of titrant would be required to reach the "equivalence

    asked by JP on July 24, 2011
  35. johnson

    Work these titration calculations: 1. A titration of 15.0 cm3 of household ammonia, NH3, required 38.57 cm3 of 0.78M HCl. Calculate the molarity of the ammonia. 2. What volume of 0.5M HNO3 is required to neutralize 25 cm3 of a 0.2M NaOH solution? 3.

    asked by Lemun on June 18, 2012
  36. 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
  37. Chemistry

    What volume in liters will be required to dissolve 60.9 grams of Mg(OH)2? Ksp = 1.8×10-11 After doing the math, i got 1.58e-4, but its not right, so i have no idea what to do now.

    asked by Brianna on March 25, 2014
  38. Chemistry 111

    a)For the titration of an acid analyte with a NaOH titrant, a phenolphthalein endpoint will change from colorless to pink. If the "pink" resulted from perhaps only a half-drop(or less) of NaOH titrant and the Erlenmeyer flask is set aside on the laboratory

    asked by Alix on April 5, 2011
  39. Chemistry

    Accurately weigh 0.9-1.1 g into a 200 mL beaker. Dissolve the KIO3 in a small amount of distilled water. Quantitatively transfer, with rinsing, to a 500 mL volumetric flask. Dilute to the calibration mark and shake well. Rinse the buret several times with

    asked by Jessica Horen on September 30, 2014
  40. Biochemistry

    You wish to make 3 reactions (1 ml each) with the specified amounts of protein. The remainder of each reaction consists entirely of buffer. The source of your protein is a stock solution that has a concentration of 0.5 mg/ml. What is the volume of stock

    asked by Alwxy on October 22, 2016
  41. Chemistry

    Determine the concentration of 20.0 mL of the sulphuric acid when 1.00 mol/L sodium hydroxide is used as the titrant. Observations: Initial volume of H2SO4 __________. Final volume of H2SO4 __________. Volume of H2SO4 added __________.

    asked by Emanuela on May 26, 2017
  42. chemistry

    Determine the concentration of 20.0 mL of the sulphuric acid when 1.00 mol/L sodium hydroxide is used as the titrant. Observations: Initial volume of H2SO4 __________. Final volume of H2SO4 __________. Volume of H2SO4 added __________.

    asked by dev on April 28, 2016
  43. CHEMESTRY

    calculate the minimum volume of hydrogen gar hn cubic centimetres required to convert 3.18 g of CuO to Cu at s.t.p. (Cu=64, O=16, H=1; molar gas volume at stp = 22.4 dm^3

    asked by The Okome on April 8, 2019
  44. Chemistry

    Analysis of Tap water (Hardness) Was analyzed by a complexometric titraion by the following equations 1 & 2 1. Ca^2+ + Mg^2+ --> Ca^2+ + Mg(Indicator) 2. Mg(Indicator) + Ca^2+ + EDTA^4- --> CaEDTA^2- + MgEDTA^2- + free indicator For the volume of titrant

    asked by Lauren--PLEASE HELP on November 29, 2009
  45. Chemistry

    A titration involves titrating 0.4 M NaOH into a solution of 0.2 M H3PO4. a.) Calculate the volume of NaOH that will be required to reach the first equivalence point. b.) Calculate the volume of NaOH required to reach the second equivalence point. Other

    asked by Anonymous on February 8, 2014
  46. CHEMISTRY

    Suppose that 30.0 mL of 0.20 M C6H5COO(aq) is titrated with 0.30 M KOH(aq). a) What is the initial pH of the 0.20 M C6H5COOH(aq)? b) What is the pH after the addition of 15.0 mL of 0.30 M KOH(aq)? c) What volume of 0.30 M KOH(aq) is required to reach

    asked by Sarah on September 29, 2011
  47. college

    Consider the titration of 50.0 mL of 0.20 M NH3 (Kb=1.8*10^-5) with 0.20 M HNO3. Calculate the pH after addition of 50.0 mL of the titrant.

    asked by Syra on June 21, 2010
  48. Chemistry

    What volume of 0.300 M Na3PO4 is required to precipitate all the lead(II) ions from 130.0 mL of 0.400 M Pb(NO3)2? Can you please show the steps I have no idea how to solve

    asked by Ashley on June 21, 2013
  49. Chemistry

    what volume of concentrated 18M H2SO4 is required to prepare 250mL of a 6.0M solution? how would you solve this problem? i know it has something to do with the molarity formula but no idea how to apply it

    asked by Lena on March 4, 2014
  50. chemistry

    Predict the effect (Increase, Decrease, No effect, Indeterminate)and explain why 1. Condition: In the determination of water hardness, the water sample contained appreciable amount of ferric ions Paameter: ppm CaCO3 2. Condition: Instead of MgCl2*H2O,

    asked by :kkk: on August 31, 2007
  51. analytical chemistry

    Predict the effect (Increase, Decrease, No effect, Indeterminate)and explain why 1. Condition: In the determination of water hardness, the water sample contained appreciable amount of ferric ions Paameter: ppm CaCO3 2. Condition: Instead of MgCl2*H2O,

    asked by :kkk: on August 31, 2007
  52. chemistry help

    In the following questions, assume that no excess distilled water was added from a wash bottle during the titration of 10.00 mL of vinegar with your standardized solution of NaOH. A. calculate the pH of vinegar. B. what was the pH of the solution after

    asked by jk on April 1, 2015
  53. chemistry

    In the following questions, assume that no excess distilled water was added from a wash bottle during the titration of 10.00 mL of vinegar with your standardized solution of NaOH. A. calculate the pH of vinegar. B. what was the pH of the solution after

    asked by jk on April 1, 2015
  54. Chemistry

    Consider the titration of 50.0 mL of 0.20 M NH3 (Kb = 1.8x10^-5) with 0.20 M HNO3. Calculate the pH after addition of 50.0 mL of the titrant.

    asked by Anonymous on October 7, 2009
  55. Chemistry 101

    A volume of 20.0 mL of a 0.140 M HNO3 solution is titrated with 0.850 M KOH. Calculate the volume of KOH required to reach the equivalence point.

    asked by Caitlyn on March 9, 2018
  56. Chemistry

    Suppose that 30.0 mL of 0.20 M C6H5COOH(aq) is titrated with 0.30 M KOH(aq). (a) What is the initial pH of the 0.20 M C6H5COOH(aq)? (b) What is the pH after the addition of 15.0 mL of 0.30 M KOH(aq)? (c) What volume of 0.30 M KOH(aq) is required to reach

    asked by Alania on November 3, 2010
  57. chemistry

    A volume of 100mL of a 0.800 M HNO3 solution is titrated with 0.640 M KOH. Calculate the volume of KOH required to reach the equivalence point.

    asked by LL on August 6, 2012
  58. Chemistry

    A volume of 100mL of a 0.330M HNO3 solution is titrated with 0.370M KOH. Calculate the volume of KOH required to reach the equivalence point.

    asked by Ines on October 23, 2014
  59. Chemistry

    How do you calculate alkalinity in chemistry? Ex: List the values for total alkalinity for Sample A and Sample B A 104 drops of titrant (5.25mL) 3 drops of C20 H14 O4 B 81 drops of titrant (4.25mL) 3 drops od C20 H14 O4

    asked by anon on August 15, 2016
  60. chm

    Calculate the theoretical amounts of 0.1000 M NaOH titrant used to titrate 0.8 and 0.9 g KHP

    asked by guru on September 14, 2014
  61. CHM

    Calculate the theoretical amounts of 0.1000 M NaOH titrant used to titrate 0.8 and 0.9 g KHP

    asked by Helin on September 14, 2014
  62. Chemisty

    A 2.5 L volume of sodium hydroxide solution was prepared. The titrant was standarized against primary standard oxalic acid dihydrate, H2C2O4*H2O(molar mass is 126.06) if a 0.4774g sample of the prmiary standard consumed 31.94mL of the base solution in

    asked by Brittany on May 9, 2012
  63. Chemistry

    Suppose that 30.0 mL of 0.20 M C6H5COOH(aq) is titrated with 0.30 M KOH(aq). Refer to table 1 and table 2. (a) What is the initial pH of the 0.20 M C6H5COOH(aq)? Using ICE i found to be 2.46 The rest I do not know how to set up or solve... (b) What is the

    asked by Val on March 12, 2010
  64. Chemistry

    I've got a similar question as a previous student. What is a minimum volume (in gallons) of ethylene glycol (CH2OHCH2OH, an antifreeze) that has to be added to 3.00 gal of water if you desire this engine cooling solution (for a auto radiator) NOT to be

    asked by Holly on September 25, 2012
  65. chemistry

    Temp - 650 Pressure - 690mm Hg mass - 0.927g volume - 194cm3 How do I calculate the volume of the gas? You have the volume, given. How do I calculate the volume at a different temperature?

    asked by bex on February 27, 2007
  66. 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
  67. CHEMISTRY (IODINE VALUE-continuation)

    y question is about Determination of Iodine Value in Fats & Oils experiment. I can't seem to get the right IV for coconut oil (Iv = 7-11 range). I followed the procedure used by American Oil Chemists Society, but still I'm getting an IV value of around 1.

    asked by Summer on July 28, 2014
  68. Chemistry

    Suppose that 50.0 mL of 0.25 M CH3NH2(aq) is titrated with 0.35 M HCl(aq). (a) What is the initial pH of the 0.25 M CH3NH2(aq)? (b) What is the pH after the addition of 15.0 mL of 0.35 M HCl(aq)? (c) What volume of 0.35 M HCl(aq) is required to reach

    asked by Dana on November 3, 2010
  69. Chemistry

    Consider the titration of 30.0 mL of 0.100 M NH3 with 0.150 M HCl. calculate the pH after the following volumes of titrant have been added:(a) 0mL (b) 10.0 mL (c) 19.5 mL (d) 20.0 mL (e) 20.5 mL (f) 30 mL

    asked by Max on March 4, 2015
  70. Chemistry

    10. For the titration of 20.00 mL 0.1000 M lactic acid with 0.1000 M NaOH, calculate the pH: a. before any titrant is added b. 10.00 mL prior to the equivalent point c. at the equivalent point d. 10.00 mL after the equivalence point. Plot the points

    asked by Rick on June 22, 2014
  71. Chemistry

    Calculate the pH values and draw the titration curve for the titration of 500 mL of 0.010 M acetic acid (pKa 4.76) with 0.010 MKOH. Calculate the pH of the solution after 490 mL of the titrant have been added.

    asked by Samantha on February 5, 2017
  72. CHEMISTRY

    If you use a dirty buret, the titrant leaves drops of solution behind as the meniscus descends during delivery of the solution. The volume actually delivered by the buret will be __________ the volume your readings of the buret scale indicate was delivered

    asked by Anonymous on October 7, 2014
  73. Analytical CHM Lab

    I am filling out my neutralization titration data sheet and i did not understand how to find buret correction (ml) and corrected volume(ml) and Molarity of NaOH without buret correction and as well as with buret correction. in the lab we have used 50 ml of

    asked by Jessy on September 19, 2014
  74. Chemistry

    I don't know how to do Titration problems! I have an emergency homework assignment that's crucial to my grade! Please help with tips and step by step response! Please help!- 1. 50ml of 0.3 M KOH are required to titrate 60 ml of H^2SO^4. What is the M of

    asked by Kristen on May 11, 2015
  75. Calculus

    I actually have two questions: 4. An open box is to be made from a rectangular piece of material 3m by 2m by cutting a congruent square from each corner and folding up the sides. What are the dimensions of the box of the largest volume made this way, and

    asked by Anonymous on May 18, 2010
  76. chemistry

    calculate the volume of .100 M KOH required to titrate 50 ml of .15 M HCl

    asked by jared on May 18, 2010
  77. Chem

    Calculate the volume of 0.128 M HCl solution required to neutralize 2.32 g of Al(OH)3(s)

    asked by m on April 4, 2019
  78. Chemistry

    4) Using your initial mass of copper (0.38), calculate the minimum volume of concentrated 12M nitric acid needed to completely react with your copper to form copper (II) nitrate 5) Using your answer from question 4 (2x10^-3 L), calculate the minimum volume

    asked by Anonymous on September 22, 2014
  79. Chemistry

    Construct the data chart and the pH curve for the titration of 25 mL of 0.1 M CH3COOH with 0.1M NaOH. Add the titrant 1 mL at a time and calculate the pH after each addition

    asked by Jake on April 19, 2011
  80. Chemistry

    Calculate volume of 6MHCL required to prepare a 250 ml of a 0.15MHCL solution??

    asked by Karen on April 9, 2013
  81. chemistry

    calculate the volume of .1M HCl that is required to react with 50 mL of .1M ammonia to form a mixture that has pH 9

    asked by maycee on October 6, 2010
  82. Chemistry

    Calculate volume of 6MHCL required to prepare a 250 ml of a 0.15MHCL solution??

    asked by Karen on April 9, 2013
  83. chemistry

    Determine the volume of the titrant that would effect of neutralization. a.)0.036 L OF 0.98 m HCL titrated with with 0.58 NaOH b.) 24.3 mL of 0.29 M H2SO4 titrated with 0.42 M KOH

    asked by Anonymous on October 9, 2011
  84. Math

    Calculate the amount of fluorescein (MW 332.31) you will need to make 10 mL of 15 mM solution in ethanol (EtOH). My answer:0.05 g 2.Using Equation C1V1=C2V2 calculate the volume of stock solution (15 mM) you need to make 1 mL of each working solution

    asked by Vivian on January 14, 2017
  85. chemistry

    calculate the volume of oxygen required for cmmplete combution of20cm3 of (C2H2) ethyne

    asked by suleiman on January 13, 2019
  86. Chemistry

    Suppose that 30.0 mL of 0.20 M C6H5COOH(aq) is titrated with 0.30 M KOH(aq) (a) What is the initial pH of the 0.20 M C6H5COOH(aq)? (b) What is the pH after the addition of 15.0 mL of 0.30 M KOH(aq)? (c) What volume of 0.30 M KOH(aq) is required to reach

    asked by Zell on October 4, 2012
  87. Chemistry

    HNO3 used as a reagent has a specific gravity of 1.42 g/ mL and contains 70% by strength HNO3. Calculate: Volume of acid that contains 60 g pure acid? Volume of water required to make 1 molar solution from 2 mL concentrated HNO3?

    asked by Anonymous on August 7, 2014
  88. chemistry redox titration

    calculate the volume of a 0.02M mno4- solution that is required to react completely with 10.0ml of 0.1M c2o4-2

    asked by carla on April 8, 2012
  89. 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 6, 2012
  90. chemistry

    Calculate the mass of oxygen gas required to occupy a volume of 6 L at a pressure of 20.9 kPa and a temperature of 37◦C.

    asked by sara on April 30, 2015
  91. chemistry

    Calculate the volume of oxygen at STP required to burn 3.7 kg C3H6O2 producing CO2 & H2O:

    asked by Tyler on September 25, 2013
  92. Chemistry

    A 50.0 mL sample of 0.10 M pyridine, C5H5N, is titrated with 0.2 M HBr. Calculate the pH to one decimal place when the following volumes of titrant have been added. 0.00 mL a) 0ml b)17ml c)25ml d)40ml

    asked by Katie on March 7, 2013
  93. chemistry

    Volume of Na2S2O3(aq) required? final burette reading trial1= 45.00 trial2= 44.27 trial3= 45.28 initial burette reading trial1= 0.52 trial2= 1.22 trial3= 2.33 volume of Na2S2O3 used in each trial? average of the two volumes agreeing within 0.10mL? can

    asked by Yul on November 16, 2011
  94. Chemistry

    A 25.00mL sample of a household cleaning solution was diluted to 250.0mL in a volumetric flask. A 50.00mL aliquot of this solution required 40.38mL of 0.2506 M HCl to reach a bromocresol green end point. Calculate the weight/volume percentage of NH3 in the

    asked by Ellen on March 28, 2012
  95. physics thermodynamics

    A gas expands from a volume of 2.00m^3 to 6.00m^3 and does 6912 joules of work against a constant outside pressure. Calculate this outside pressure in Pa. The answer is 1730 Pa, but I don't know how to get that. I honestly have no idea where to start or

    asked by emily on February 11, 2007
  96. Chem

    calculate the volume in ml of 0.250 M silver nitrate solution required to react completely with a 5.00 g piece of copper

    asked by No on April 19, 2012
  97. Chem

    calculate the volume in ml of 0.250 M silver nitrate solution required to react completely with a 5.00 g piece of copper

    asked by No on April 19, 2012
  98. Chemistry

    Use standards entropies and heats of formation to calculate delta Gf at 25C for a. cadmium (II) chloride (s) b. methyl alcohol, CH3OH (l) c. copper (I) sulfide (s) I really have no idea where to start with this problem. I have no idea how to calculate

    asked by Olivia on November 9, 2013
  99. Redox Titration questions!

    Calculate the percent of iron in a 50.0 gram sample containing iron if 45.6 mL of 2.5 M KMnO4 titrant was used. can you solve this?

    asked by Yoojin Lee on March 24, 2014
  100. Chemistry

    1.The Volume of oxygen required for the complete combustion of 500ML of ethyne at STP..A)2.00ML B)1.25 C)1.71 D)1.00 2.A Chemical Engineer finds that 250ml CuSO4 reacts with excess NaOH to create 2.37g of precipitate.Calculate the Concentration of

    asked by Alex on June 4, 2009

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