1. Chemistry

    We performed a lab in class about a month ago concerning different types of equilibrium. One particular portion of the lab adding 5 mL of .3M HCl to 5 mL of .3 M Pb(NO3)2. After a precipitate finally formed, 8 mL of water was added to dissolve PbCl2. One

    asked by Kim on May 28, 2007
  2. Chem.

    Sorry if I confused you. I miss-wrote my question. My question was: How can I determine the concentration of HCl remaining in the flask. I calculated the # of moles of HCl neutralized by the tablet which was around 0.014 M. I don't understand the steps

    asked by Help!! on July 7, 2015
  3. Chemistry, acids and bases

    (a) Find pH and pOH of 1.0 M solution of sodium benzoate, NaC6H5COO. (Ka of benzoic acid is 6.2x10^-5) (b) Calculate pH after 0.205 moles per liter of HCl was added (assume volume does not change (c) Calculate pH after 1.0 moles per liter of HCl was added

    asked by Marissa on May 6, 2008
  4. Chemistry

    Sorry DrBob, it's me again! Here's the info: Antacid Brand: Life Concentration of HCl: 0.1845 M Concentration of NaOH: 0.1482 M Trial 1: 1.Mass of Table: 1.2173g 2.Volume of HCl added: 75.0 mL 3.Milliomoles of HCl added:(0.1845M x 75.0mL= 13.84 mmoles

    asked by Akhed-To DrBob222 on October 18, 2010
  5. chemistry Equations

    Write euations to show how a buffer made up of equimolar amounts of acetic acid, CH3COOH, and acetate, CH3COO-, would behave when (a) HCl was added and (b) NaOH was added. Is this right,If not what is the correct way? CH3COOH + HCl ----> CH3COOHCl + OH

    asked by Lan on April 20, 2014
  6. chemistry

    Assuming that the volumes are additive, what volume of water must be added to 35.0mL of 23.0 M HCl to make a solution which is 3.00 M?

    asked by Denise on April 13, 2011
  7. chemistry

    What volume of 4.50M HCl can be made by mixing 5.65M HCl with 250 mL of 3.55M HCl?

    asked by casey on July 24, 2010
  8. science

    you are given one litre each of 0.5 M HCL and 0.2 M HCL. How should they be mixed so as to give maximum volume of 0.4 M HCL.

    asked by mehreen on March 26, 2016
  9. Chemistry

    Can someone please answer one of these question so I would be able to know how to do the others? 1. What volume of 0.275 M KOH (aq) must be added to 75.0 mL of 0.137 M H3AsO4 (aq) to reach (a) the first stoichiometric pony; (b) the second stoichiometric

    asked by Anonymous on March 22, 2015
  10. Chemistry

    What volume (mL) of .20 M HCL needs to be added to 1.23 L of .10 M acetic acid to reduce percent ionization to 1.00%?

    asked by Molly on March 2, 2015
  11. Chemistry

    A 112 mL solution of 0.351 M HCl is added to 52.0 mL of 0.161 M HCl. What is the new concentration of HCl?

    asked by Madison on October 21, 2010
  12. Chemistry

    A solution is prepared by dissolving 50.0 g of pure HC2H3O2 and 20.0 g of NaC2H3O2 in 975 mL of solution (the final volume). what is the ph? What would the pH of the solution be if 50.0 mL of 0.900 M NaOH were added? What would the pH be if 30.0 mL of 0.30

    asked by Bella on November 12, 2012
  13. Chemistry

    A buffer contains 5.00 M acetic acid and 5.00 M acetate anion. Gaseous HCl (0.010 mole) is added to 1.00 L of this buffer solution (the total volume does not change). For this buffer solution, the initial pH is_______and the final pH after the addition of

    asked by Ivana on May 2, 2010
  14. chemistry

    Calculate the pH of the buffer system after the addition of 0.1 mol of gaseous HCl of the solution. Assume that the volume of the solution does not change when the HCl is added.

    asked by zayde on March 30, 2015
  15. Chemistry

    consider 1.0 L of a solution which is 0.55 M HF and 0.2 M NaF (Ka for HF = 7.2 x 10-4). Calculate the pH after 0.10 mol of HCl has been added to the original solution. Assume no volume change on addition of HCl. Goes along with the last one i posted, i

    asked by Chris on November 30, 2012
  16. Chemistry (molarity) (sorta an emergency)

    I'm doing a titration lab and writing a lab report where I'm sort of stuck on how exactly to find the concentration of HCl. These are the following info I have from the lab, Equation: HCl(aq)+NaOH(aq)-> H2O(l)+NaCl(aq) -Calculated molarity of NaOH solution

    asked by Ray on November 13, 2016
  17. Chemistry

    Can someone please help me answer these questions? Is additional information other than what is given needed to solve? Thanks in advance. 1) Calculate the PH of a buffer containing 0.100 M propanoic acid, HC3H5O2 and .100 M NaC3H502 after the following

    asked by Charles on December 13, 2013
  18. Chemistry

    1) How many drops of 12M HCl would you add to 1.00 L of 0.100 M HC2H3O2 to make [C2H3O2-] = 1.0 x 10^-4 M? Assume that 1 drop = 0.050 mL and that the volume of the solution remains 1.00 L after the 12 M HCl is diluted. [Hint: What must be the [H3O+] in the

    asked by Chem on August 10, 2009
  19. chemistry

    So I did a titration lab at school with NaOH and HCl. i have to find: - volume used, NaOH - Moles of NaOH - Moles of HCl -Volume used unknown HCl - Molarity of HCl solution My concentration of NaOH stock solution was 0.100 mol/lL Final buret reading, NaOH:

    asked by julie on January 4, 2015
  20. Chemistry

    Determine the moles of ammonia in the following cobalt ammine complex: A sample of .1500 g of the cobalt ammine complex is places in a flask and 25.00mL of .200M HCL is added. a few drops of bromocresol green is added and the titration with .100M to NaOH

    asked by james on March 16, 2010
  21. chemistry

    i need help to do this and to write this out. 2.0 L of a 6.0 M HCl solution is added to water so that the final volume of 6.0 L.

    asked by ashlyn on April 23, 2019
  22. chem

    HCl is a strong acid and ionizes 100%. NaOH is a strong base and ionizes 100%. We have no way of knowing the pH of HCl + H2O because the problem doesn't state the amount of HCl added or the concentration of HCl. For the NaOH + HCl ==> NaCl + HOH. NaCl in

    asked by DrBob222 on May 15, 2007
  23. chemisty

    What volume of HCl gas at 25â—¦ C and 1 atm should be bubbled into 375 mL of a 0.680 M aqueous solution of HClO4 so that the pH of the resulting solution is 0? Assume that all the HCl dissolves and that the volume of the solution does not change with

    asked by Clayton on April 3, 2012
  24. Reposting Chemistry Question -Emergency !!

    Saturated solution of Ca(OH)2 in 0.05349 mol/L NaOH. Temperature: 22.1 * C Volume of Ca(OH)2/NaOH aliquot: 25ml Concentration of Standard HCl: 0.1213M Indicator Used: Bromothymol Blue Ksp from previous part I got 3.55x10^-5 - Average volume of HCl added to

    asked by DrBobPleaseHelp on March 19, 2017
  25. Chemistry

    Determine the mass of NH2CH2CO2Na and the volume of 0.150 M HCl solution required to make 1.35 L of a buffer solution at pH=10.75 and at a total concentration of 0.33 M. pKa(NH2CH2CO2H)=9.88. a.Mass of NH2CH2CO2Na: b. Volume of HCl solution: Hi Im sooo

    asked by J on November 16, 2016
  26. Chemistry

    calculate the volume of hydrogen produced from .025g of aluminum and sufficient HCl at 21 degrees Celsius and 755 torr according to the following reaction: Al(s) + HCl(aq)--------- AlCl3 (aq) + H2(g) Volume of H2________ml

    asked by amber on June 24, 2014
  27. GChem

    1. 25mL of 0.1M HCl is titrated with 0.1M NaOH. What is the pH when 30mL of NaOH have been added? 2. 25mL of 0.1M HCl is titrated with 0.1M NaOH. What is the pH after 15mL of NaOH have been added? I don't know how to make calculation I assumed that for

    asked by Mike on August 10, 2009
  28. chemistry

    I am confused on how to do the last question. Calculate molarity of HCl from the volumes of acid and base at the equivalence point and the molarity of NaOH from the titration curve. (M of Acid)x(v of acid)= (m of base)x(v of added base) M1= 0.50M of NaOH x

    asked by Tim on February 27, 2008
  29. chemistry

    Volume of distilled water used 12.09 mL Volume of HCl added 0.87 mL Concentration of added HCl 1.979 M pH of diluted HCl solution ___________________

    asked by faruk on July 30, 2013
  30. Chemistry

    What volume (mL) of 0.20 M HCl needs to be added to 1.23 L of 0.10 M acetic acid to reduce the percent ionization to 1.00%? Assume the volume of HCl added is negligible compared to the volume of the whole solution, and that the small x approximation is

    asked by Molly on March 3, 2015
  31. Chemistry

    Could someone please help me complete my lab experiment. Antacid Brand: Life Concentration of HCl: 0.1845 M Concentration of NaOH: 0.1482 M Trial 1: 1.Mass of Table: 1.2173g 2.Volume of HCl added: 75.0 mL 3.Milliomoles of HCl added:mmoles ? Help 4.Volume

    asked by Akhed on October 18, 2010
  32. mastering chemistry

    A solution of volume 80.0 mL contains 16.0 mmol HCHO2 and 9.00 mmol NaCHO2. If 1.00 ml of 12 M HCl is added to this, what will be the resulting pH? (the only problem im having for this question is how to approach it, i know that by adding HCl the

    asked by chma11 student on February 28, 2009
  33. chemistry

    Im stuck on these few questions that seems to be getting me no where : c HCl = 0.1812 c NaOH = 0.1511 volume of HCl added : 75 volume of NaOH added: 29.23,19.58,33.3 -Determine the number of mmoles of HCl that did not react with the anatacid. - mmoles of

    asked by kathy on October 8, 2013
  34. chemistry

    Im stuck on these few questions that seems to be getting me no where : -Determine the number of mmoles of HCl that did not react with the anatacid. c HCl = 0.1812 c NaOH = 0.1511 volume of HCl added : 75 volume of NaOH added: 29.23,19.58,33.3 - mmoles of

    asked by karen on October 8, 2013
  35. Chemistry

    Sorry DrBob22, I wasn't sure if you saw my last post. But, I am still a little confused. Here's the info: Antacid Brand: Life Concentration of HCl: 0.1845 M Concentration of NaOH: 0.1482 M Trial 1: 1.Mass of Table: 1.2173g 2.Volume of HCl added: 75.0 mL

    asked by Akhed-To DrBob222 on October 18, 2010
  36. chem

    Mass of tablet: 1.4930g Volume of HCL added: 100ml Find the milimoles of HCL added I have many questions similar to this, could someone explain how to do this...do I just find the # of moles regularly and multiply by 1000? any help would be much

    asked by Alexa on October 16, 2007
  37. chemistry

    How can I determine the concentration of HCl remaining in the flask after back titration? PLEASE SHOW SOLUTION!!!!!! Con. of HCl: 0.14M Volume added:100mL Con. of NaOH:0.145M Weight of Tablet: 1.0g I have been given weight of antacid, concentration and

    asked by Jane Smith on July 11, 2015
  38. chemistry

    Purpose: The purpose of this experiment is to determine the Ksp for calcium hydroxide. Materials are: *50.0 mL of 0.10 M HCl(aq) *bromophenol blue indicator *50.0 mLsaturated calcium hydroxide *50.0 mL buret *125 mL Erlynmyer Flask *50.0 mL of distilled

    asked by Tim's Titration Lab on April 4, 2008
  39. Chemistry

    Sorry DrBob, it's me again! Here's the info: Antacid Brand: Life Concentration of HCl: 0.1845 M Concentration of NaOH: 0.1482 M Trial 1: 1.Mass of Table: 1.2173g 2.Volume of HCl added: 75.0 mL 3.Milliomoles of HCl added:(0.1845M x 75.0mL= 13.84 mmoles

    asked by Akhed-To DrBob222 on October 19, 2010
  40. chemistry

    Let me repost the important information only: Purpose: The purpose of this experiment is to determine the Ksp for calcium hydroxide. Materials are: *50.0 mL of 0.10 M HCl(aq) *bromophenol blue indicator *50.0 mLsaturated calcium hydroxide *50.0 mL buret

    asked by Jessica on April 1, 2008
  41. analytical chemistry

    what is the volume that must be added to dillute 20.0 ml of 0.1M Hcl to 0.02M Hcl

    asked by francime on February 27, 2016
  42. Chemistry

    What volume of 0.149 M HCl must be added to 1.00x10^2 mL of 0.285 M HCl so that the resulting solution has a molarity of 0.205 M? Assume that the volumes are additive.

    asked by Faith on October 12, 2015
  43. Chemistry

    A student must make 500 mL of a 1.5 M HCl solution. The student has plenty of water and a stock solution of 6.0 M HCl to use. What volume of the 6.0 M HCl solution must be added to what volume of water to make the desired 500 mL of 1.5 M solution? I don't

    asked by Katie on March 8, 2009
  44. Chemistry

    a) If 2.40 g NaHCO3 is added to 150 mL of 0.200 M HCl, calculate the molarity of H+ after the reaction above goes to completion. b) What volume, in mL, of 0.900 M KOH would be required to neautralize the remaining HCl in the problem above?

    asked by sea lively on July 24, 2018
  45. chemistry

    I have to find the weight percent of Na2Co3 for my lab report that's due tomorrow but I have no idea how to do it. In the lab I had to wdight 0.4 g of the unknown soda ash sample into an erlenmyer flask and add about 50 mL of deionized water. Then I had to

    asked by bria on September 20, 2006
  46. CHEMISTRY

    CALCULATE THE VOLUME OFHYDROGEN WHEN 25G OF ZINC ADDED TO HCL AT 31`C&778MMHG PRESSURE H=1,ZN=65,CL=35.5,.

    asked by Anonymous on March 3, 2019
  47. Chemistry Check

    The Synthesis of hydrogen chloride is written H2+Cl2==>2HCl. 3L of hydrogen are used and all gasses are at STP. The volume of HCL produced in the reaction would be _______ L. would the answer be 5.96? Three liters of H2 yields six liters of HCl, from the

    asked by Briana on January 19, 2007
  48. 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
  49. Brad

    My problem is calculate the molarity of HCl and NaOH (molarity of acid)x(volume of acid)=(molarity of base)+(volume of added base) HCl=acid NaOH=base HCl volume = 25mL=0.025L NaOH=67.05mL=0.06705 molarity = moles of solute Liters of a solution M=0.015000

    asked by Chemistry on February 19, 2008
  50. chemistry

    My problem is calculate the molarity of HCl and NaOH. (molarity of acid)x(volume of acid)=(molarity of base)+(volume of added base) HCl=acid NaOH=base HCl volume = 25mL=0.025L NaOH=67.05mL=0.06705 molarity = moles of solute Liters of a solution M=0.015000

    asked by Brad on February 19, 2008
  51. Math

    What volume, in ml, of a 60% of HCl acid solution must be added to 100 ml of a 30% HCl solution to make a 36% HCl solution. We need 2 alegabreic (?) equations. The first I can get is: 0.36x - 0.60y = 100ml (this is probably wrong)? Blah. I can't get the

    asked by Ariel on January 31, 2007
  52. General Chemistry-Acids/Bases

    I'm stuck on a couple of similar problems involving pH and acids/bases 1) What is the final pH of a 1L solution that is initially .15 M HF and .2 M NaF after 10 mL of .02 M HCl has been added? Ka=7.2x10^-4 Do i just calculate the total mols of H and divide

    asked by Evelyn on November 26, 2008
  53. chemistry

    Hi Cna someone please tell me what I must out into the Trial 1 column? It would be greatly appreciated. theLab: Determining the Ksp For Ca(OH)2 Purpose: The purpose of this experiment is to determine the Ksp for calcium hydroxide. Experimental Design: A

    asked by Jessica on April 1, 2008
  54. Organic Chemistry

    Hi, I did an extraction experiment. I've got my basic layer, and getting my acidic salt in return. To do this, I am instructed to first "add a small amount of NaCl to help with the product precipitation". Then, again I am instructed to add HCl to "acidify"

    asked by Juan on November 3, 2014
  55. CHEM REPOST...PLEASE CHEK!

    Posted by Kat on Monday, March 2, 2009 at 11:21am. A solution of volume 80.0 mL contains 16.0 mmol HCHO2 and 9.00 mmol NaCHO2. If 1.00 ml of 12 M HCl is added to this, what will be the resulting pH? Responses * CHEM HELP...PLEASE!! - DrBob222, Monday,

    asked by Kat on March 2, 2009
  56. Chemistry Titration-emergency :(

    [HCl]=0.1213M Avg Amount HCl added: 14.15mL Volume of Saturated Solution of Ca(OH)2 in NaOH used: 25 mL and its concentration was 0.05349 M. 1.)Calculate the total [OH ] in the saturated solution of Ca(OH)2 in sodium hydroxide -> for this do I only find

    asked by DrBobPleaseHelp on March 18, 2017
  57. Chemistry - urgent help needed

    The following is part of a procedure for a limit test for sulphates in an NaOH sample:- Dissolve 3.0g of NaOH in 6ml of deionized water, adjust to pH 7 with 12M HCl (about 6.2ml) and dilute to 15ml with deionized water. When about 6ml of 12M HCl was added,

    asked by candy on September 22, 2010
  58. chemistry

    Hi! i'm kinda having trouble getting this.. Don't understand it really from Ca(OH)2 + 2HCl-----> CaCl2 + 2H2O How do i calculate Ca+? :You need much more information. 1) do you mean the concentration of Ca+ ion? 2) is there excess HCl? What is given? ok It

    asked by Mallory on March 3, 2007
  59. Valencia

    2.0L of a 2.0M HCl solution is added to water so that the final volume is 6.0L

    asked by Lisa on November 6, 2012
  60. Chemistry

    prepare some 0.1 HCl by diluting the appropriate volume of stock 'conc' HCl to 1L. The stock acid is 37.4% HCl by weight and has a density of 1.19g/mL . Measure out the required volume with a graduated clyinder

    asked by chris on September 13, 2012
  61. Chemistry

    Can someone please tell me if I did this correctly? Calculate the molarity of the HCl from the volumes of acid and base and the molarity of the NaOH. Use the following equation: (molarity of acid)x(volume of acid)=(molarity of base)x(volume of added base)

    asked by Brad on February 20, 2008
  62. Chemistry

    Calculate the molarity of the HCl from the volumes of acid and base and the molarity of the NaOH. Use the following equation: (molarity of acid)x(volume of acid)=(molarity of base)x(volume of added base) equivalance point=number of mL of base to an acid

    asked by Brad on February 20, 2008
  63. Chemistry

    Q1: You wish to prepare a buffer solution with pH = 11.10. What volume of 6.0 M HCl would you add to 500 mL of 0.10 M (C2H5)2NH to prepare the buffer? You may assume that the solution’s volume remains constant. Q2: What is the resulting pH when 20 mL of

    asked by David on February 24, 2013
  64. Chemistry

    Q1: You wish to prepare a buffer solution with pH = 11.10. What volume of 6.0 M HCl would you add to 500 mL of 0.10 M (C2H5)2NH to prepare the buffer? You may assume that the solution’s volume remains constant. Q2: What is the resulting pH when 20 mL of

    asked by Anonymous on February 24, 2013
  65. chemistry

    in order to dilute 40.0 ml of .600 m hcl to .100 m, the volume of water that would need to be added would be?

    asked by Anonymous on March 26, 2012
  66. chemistry

    calculate the volume of 0.1M NaOH which must be added to 50 mL of 0.1M HCl to give a final solution of pH 6???

    asked by sara on March 4, 2010
  67. Chemistry

    A solution is prepared by dissolving of pure HC2H3O2 and of NaC2H3O2 in of solution (the final volume). (a) What is the pH of the solution? (b) What would the pH of the solution be if of 0.250 M NaOH were added? (c) What would the pH be if of 0.40 M HCl

    asked by Liam on February 22, 2015
  68. Chemistry

    We conducted a lab with antacids in class the other day and i'm having trouble doing the calculations. Well we basically took antacid tablets dissolved them in HCl, heated it and then added phenolthalien and then titrated until we saw a pink color. At 41mL

    asked by Anonymous on March 15, 2010
  69. Chemistry

    Knowing that the milk of magnesia contains 8 g% of Mg (OH)2, using 1 g of milk of magnesia and added 50 mL of 0.100 M HCl, determine the required volume of a solution of 0.105 M NaOH to titrate the excess HCl 0.100 M.

    asked by Kelly on April 25, 2016
  70. Chemistry

    Knowing that the milk of magnesia contains 8 g% of Mg (OH)2, using 1 g of milk of magnesia and added 50 mL of 0.100 M HCl, determine the required volume of a solution of 0.105 M NaOH to titrate the excess HCl 0.100 M.

    asked by Monica on April 25, 2016
  71. Chemistry

    Calculate the volume of 2.503 N HNO3 added to 100 mL of HCl in order to prepare 1.1251 N acid solution from the following data: 58.96 mL NaOH will neutralize 2.521g of potassium tetroxalate and 45.57 mL of HCl will neutralize 53.0 mL of the NaOH solution.

    asked by Summer on January 21, 2014
  72. Chemistry

    a solution is made by combining 10.0 ml of 17.5 M acetic acid with 5.54 g of sodium acetate and diluting to a total volume of 1.50 L. a)calculate the pH of the solution. b) how many grams and milliliters of 14.6 M potassium hydroxide needs to be added so

    asked by Amanda on November 29, 2011
  73. Biochemistry

    Which of the following is the correct pH of a 211.7 mL solution (final volume) of pure water after 52.3 mL of 1.00 mM HCl was added?

    asked by Rich on September 17, 2013
  74. Chemistry

    A student was given 100mL of HCL solution in a 250mL beaker and told that the HCL was 0.11M. The student was also given phenolphthalein indicator and 250 ML of 0.1234 M NaOH. The student first filled a buret with NaOH solution. The student then placed an

    asked by Lenny on November 21, 2013
  75. Chemistry

    Antacid tab is dissolved in water and a few drops of phenolphthalein is added yielding bright pink solution. 0.2025 M HCl added until pink color disappears. The 0.2147 M NaOH added until it turns light pink for ~30 seconds. mass on antacid tablet = 1.056g

    asked by T on December 1, 2012
  76. Chemistry

    50.0mL of 0.200M HCl diluted to 100.0 mL and titrated with 0.200M NaOH. what is total volume of solution(L) if volume of NaOH added(mL) are 0.00, 5.00, and 10.0

    asked by Anonymous on March 25, 2011
  77. chemistry

    An old bottle of 12.3 M hydrochloric acid has only 33 mL left in it. What is the HCl concentration if enough water is added so that the final volume is 513 mL?

    asked by masin on November 29, 2010
  78. chemistry

    What volume of 10 percentage (mass/volume) solution of Na2CO3 will be required to neutralise 100mL of HCl sution containing 3.65g of HCl.

    asked by Raveena on March 22, 2018
  79. Chemistry

    What is the volume of HCl stock (37%) you must add in order to make up a 10.0% diluted HCl solution, if the final volume to be achieved is 600mL?

    asked by Kayden on May 27, 2013
  80. Chemistry

    A solution is prepared by dissolving 25.0 g of pure HC2H3O2 and 25.0 g of NaC2H3O2 in 700 mL of solution (the final volume). (a) What is the pH of the solution? (b) What would the pH of the solution be if 65.0 mL of 0.650 M NaOH were added? (c) What would

    asked by Dean on February 21, 2015
  81. chemistry AP

    You have to design a buffer based on one of the systems below System 1: HA1 and A1-1 K= 4 E-3 System 2: HA2 and A2-1 K= 5 E-4 System 3: HA3 and A3-1 K= 6 E-5 For the following parts assume that the buffer above in system2 has been constructed with [HA] =1M

    asked by maya on March 27, 2010
  82. chemistry

    Question about titration calculations in analysis of antacids lab. We did a lab yesterday with antacids, HCl and NaOH and I'm having trouble doing the calculations. The information known is the following: 1)0.10M NaOH 2)0.10M HCl 3)Mass of Antacid .22g

    asked by Mindy on March 11, 2010
  83. chem

    A sample containing 6.40 g O2 gas has a volume of 15.0 L. Pressure and temperature remain constant. a. What is the new volume if 0.600 mole O2 gas is added? b. Oxygen is released until the volume is 12.0L. How many moles of O2 are removed? c. What is the

    asked by tracy on November 1, 2012
  84. chemistry

    Mass of tablet is 1.3183g, concentration of HCl 0.1807M, concentration of NaOH 0.1481M, volume of NaOH used 20.36 ml then milimoles of HCl added ?, milimoles of NaOH used ?

    asked by Anonymous on October 15, 2011
  85. Chemistry

    Determine the volume of concentrated HCL and the volume of water needed to produce 20mL of 6M HCL.

    asked by Michelle on January 26, 2011
  86. chemistry

    {V1} mL of 0.100 M HCl is placed in a {V2}.0 mL volumetric flask and water is added to bring the final volume up to 250.0 mL. What is the molarity of the dilute solution?

    asked by Brendon on November 12, 2014
  87. Chemistry

    An unknown mass of caco3 was added to an excess of 2mol/dm3 hcl. Calculate the total volume of co2 evolved.

    asked by Tan on December 4, 2015
  88. Chemistry -help

    To determine the sodium carbonate content & total alkali in NaOH, the following steps were performed:- 1) 2.0g of NaOH was dissolved in 80ml of CO2 free water. 2) 3 drops of phenolphthalein indicator were added and the solution was titrated with 1M HCl.

    asked by anne on September 18, 2010
  89. Chemistry

    You added how may mols NaOH? That's M x L = mols. What final volume do you have. You added 18.01 mL and 10 mL so total volume is 28.01 mL. Convert that to L., then M = mols/L Do I do 0.1M x .01801L = 0.001801mols? Then do M = 0.001801mols/0.02801L? I'm a

    asked by Jay on April 25, 2014
  90. Chemistry

    I have troubles with a titration of NaOH and HCl. The volume of the HCl is 30 ml and its concentration is 0.1 mol per liter The volume of the NaOH is 25 ml and the concentration is to be worked out. I understand that the reaction ratio for HCl to

    asked by Jazz on May 17, 2010
  91. Chemistry

    25 ml of cloudy ammonia solution is added to a 250 ml Erlenmeyer flask. 50 ml of .1 M HCl is then immediately added to the flask, which reacted with the ammonia in the solution. Next, the solution was titrated with .025 M NaOH to neutralize the excess HCl

    asked by Anonymous on February 2, 2014
  92. Chemistry

    Na2CO3 + 2HCL  CO2 + H2O + 2NaCl Reaction Ration is 1:2 Calculate how many moles of HCl are present in the average volume of HCl at the end-point. Avg. volume is 0.0182L

    asked by Amilia on October 23, 2017
  93. chemristy

    How many mL of 8.0 M HCl must you dilute with an appropriate volume of H2O to prepare a total volume of 260.0 mL of 1.5 M HCl?

    asked by Herman on February 27, 2011
  94. AP Chemistry

    If a sample of 27.0 g of aluminum metal is added to 333 mL of 3.0 M HCL acid, the volume of hydrogen gas produced at standard temperature and pressure is a. 2.8 L b. 5.60 L c. 11.2 L d. 22.4 L

    asked by Magna on October 10, 2019
  95. chemistry

    If 1 L HCl has a molarity of 0.10 M, what molar concentration of 1 L AgNO 3 is needed for HCl to completely react? How much product (moles and volume) will be formed? HCl(aq)+ AgNO3(aq) ->AgC(s)+HNO3(aq)

    asked by Anonymous on April 24, 2016
  96. chemistry

    If 1 L HCl has a molarity of 0.10 M, what molar concentration of 1 L AgNO 3 is needed for HCl to completely react? How much product (moles and volume) will be formed? HCl(aq)+ AgNO3(aq) ->AgC(s)+HNO3(aq)

    asked by Anonymous on April 24, 2016
  97. chemistry

    If 1 L HCl has a molarity of 0.10 M, what molar concentration of 1 L AgNO 3 is needed for HCl to completely react? How much product (moles and volume) will be formed? HCl(aq)+ AgNO3(aq) ->AgC(s)+HNO3(aq)

    asked by Anonymous on April 24, 2016
  98. Chemistry

    Mg + HCl -------> MgCl2 + H2 What volume of HCl is required from 27 % HCl to form 12.1 gram H2? ( D = 1.41 g/ml)

    asked by Majid on September 2, 2016
  99. Chemistry

    Prepare a 0.0200 mM dye solution at low pH by dilution 0.40 ml of the stock 0.100 mM chemical X into the appropriate volume of 2.5 M HCl. What is the amount of HCL required for dilution, the final concentration of HCl in the solution, and the pH? I know

    asked by Emma on June 24, 2010
  100. Biology

    In a lab experiment, we experimented with 1% glucose solution and Sorenson's solution to determine pH levels and whatnot; the other part of the lab was to determine which one, if either, was a buffering solution. According to the notes my instructor gave

    asked by Emily on January 28, 2013