1. Chemistry

    Heart pacemakers are often powered by lithium-silver chromate “button” batteries. The overall cell reaction is: 2Li(s) + Ag2CrO4(s) --------> Li2CrO4(s) + 2Ag(s) Lithium metal is the reactant at one of the electrodes of the battery. Is it the anode or

    asked by Jay on May 7, 2011
  2. chemistry

    (AAAAA)The standard reduction potentials of lithium metal and chlorine gas are as follows: (for Li, reduction potential is -3.04, for Cl it is 1.36) In a galvanic cell, the two half-reactions combine to 2Li{+](s) + Cl{-}2(g) --> 2Li{+}Cl{-}(aq) Calculate

    asked by lili on April 28, 2011
  3. Chemistry

    Silver chromate may be prepared by the following reaction. 2 AgNO3(aq) + K2CrO4(aq)  Ag2CrO4(s) + 2 KNO3(aq) Calculate the mass of silver chromate produced when 0.623 L of 1.345 M silver nitrate is reacted with 245 mL of 1.89 M potassium chromate.

    asked by Cj on October 2, 2014
  4. chemistry

    The standard reduction potentials of lithium metal and chlorine gas are as follows: (for Li, reduction potential is -3.04, for Cl it is 1.36) In a galvanic cell, the two half-reactions combine to 2Li{+](s) + Cl{-}2(g) --> 2Li{+}Cl{-}(aq) cell potential=4.4

    asked by Ann on November 3, 2012
  5. Chemistry

    Silver oxide is used in small batteries called button batteries (Figure below). It decomposes upon heating to form silver metal and oxygen gas. 2Ag2O(s) → 4Ag(s) + O2(g) How many moles of silver are produced by the decomposition of 4.85 g of Ag2O?

    asked by Makayla Brad on November 12, 2015
  6. science

    Can a cellphone place near a pacemaker patient heart change the pacemaker patient heart rate and how? Can I use my cell phone if I have a pacemaker? The types of cell phones used in the United States are less than 3 watts and do not seem to affect

    asked by nikki on December 27, 2006
  7. chemistry

    Hi, I was hoping someone could double check a chemistry answer for me. I am trying to calculate the Ksp of Ag2CrO4. This question is based on a experiment to determine ksp experimentally. In the experiment the Ksp of silver chromate was calculated using a

    asked by Laura on May 26, 2013
  8. Chemistry

    2Li(s) + 2H+(aq) + SO42–(aq) ---> 2Li+(aq) + SO42–(aq) + H2(g) The reaction shown above between lithium and sulfuric acid is best described as 1 acid-base. 2 oxidation-reduction. 3 precipitation. a. 1 only b. 2 only c. 3 only d. 1 and 2 only e. 1, 2,

    asked by Zakaria on March 23, 2010
  9. Chemistry

    Silver chromate is sparingly soluble in aqueous solutions. The Ksp of Ag2CrO4 is 1.12× 10–12. What is the solubility (in mol/L) of silver chromate in 1.4 M potassium chromate aqueous solution? In 1.4 M silver nitrate aqueous solution? In pure water?

    asked by Katherine on November 12, 2013
  10. chemistry

    Silver chromate is sparingly soluble in aqueous solutions. The Ksp of Ag2CrO4 is 1.12× 10–12. What is the solubility (in mol/L) of silver chromate in 1.00 M potassium chromate aqueous solution?

    asked by Katie on February 13, 2012
  11. chemistry

    What is the silver ion concentration in a solution prepared by mixing 385 mL of 0.380 M silver nitrate with 467 mL of 0.409 M sodium chromate? The Ksp of silver chromate is 1.2 × 10-12 I ended up making Ag+ = 2x. = 1.3 x10^-4 Which is incorrect so I'm not

    asked by Angelyka on January 24, 2013
  12. Chemistry

    What is the overall cell potential for this redox reaction? Ca2+ + 2Li = Ca + 2Li+ Ca2+ + 2e- = Ca -2.87 V Li = Li+ + e- -3.05 V

    asked by Student on June 15, 2018
  13. chemistry--URGENT, PLEASE HELP

    What concentration of silver chromate (Ksp = 9.0 x 10-12) will dissolve to make a saturated solution in water? *For this one the formula is Ag2CrO4, which is [Ag]^2[CrO4]. I plugged x in for CrO4, so x^3 is equal to Ksp. I then got that x = 2.0e-4.

    asked by Maggie on April 12, 2010
  14. chemistry

    the value for the Ksp of silver chromate is reported to be 1.1 x 10^-12. in a saturated solution of silver chromate, the silver ion concentration is found to be 2.5 x 10^-4M. what must the chromate ion concentration be?

    asked by Rachel on November 10, 2010
  15. chemistry

    A chemist performed an experiment in which silver nitrate was used to precipitate all of the chromate ion as silver chromate, Ag2CrO4 from 200 mL of a solution of potassium chromate, K2CrO4. This process required 120 mL of 0.200 M AgNO3. Write the balanced

    asked by stephanie on October 10, 2011
  16. chemistry 12

    2Li^++2I^-==>2Li+I2 would 2I^- be oxidised and 2Li be reduced reaction?

    asked by dany on July 24, 2012
  17. chemisry

    Two half cells in a galvanic cell consist of one iron electroide in a solution of iron sulphate and a silver electrode in a silver nitrate solution a) Assume that the cell is operating as a galvanic cell. State the oxidation half reaction, the reduction

    asked by Kelsey on August 25, 2010
  18. grade 12 chemisstry

    I have no idea what I'm doing here, please help. 2 half cells in a galvanic cell consist of one iron Fe(s) electorde in a solution of iron (II) sulphate FeSO4(aq)and a silver Ag(s) electrode in a silver nitrate solution, a)state the oxidation half

    asked by Sarah H on June 3, 2008
  19. Chemistry

    A technician mixes a solution containing silver nitrate with a solution containing sodium chromate. 2.89 g of precipitate is produced (assume silver chromate). Calculate the mass of silver nitrate present in the first solution. Make sure you have the

    asked by Jill on July 27, 2015
  20. chemistry

    A student wishes to prepare 1.000 g of silver chromate. How many mL of .05000M silver nitrate solution should be added to 50.00 mL of .0700M potassium chromate solution assuming 100% yield

    asked by mom on September 25, 2012
  21. Chemistry

    mix 120ml of 0.320M silver nitrate with 40ml of 0.320M potasium chromate. What mass of silver chromate is produced? I am stuck please help

    asked by Krissy on January 29, 2010
  22. college chemistry

    A galvanic cell is constructed with a silver-silver chloride electrode, and a nickel strip immersed in a beaker containing 4.97 x 10-2 M solution of NiCl2. Determine the balanced cell reaction and calculate the potential of the cell. in volts, assume a

    asked by jasmin on April 13, 2011
  23. Chemistry

    A galvanic cell is constructed with a silver-silver chloride electrode, and a nickel strip immersed in a beaker containing 7.44 x 10-2 M solution of NiCl2. Determine the balanced cell reaction and calculate the potential of the cell. Enter in volts.

    asked by Kayla on May 2, 2012
  24. AP Chemistry

    (a) When 300.0 milliliters of a solution of 0.200 molar AgNO3 is mixed with 100.0 milliliters of a 0.0500 molar CaCl2 solution, what is the concentration of silver ion after the reaction has gone to completion? (b)Write the net cell reaction for a cell

    asked by Jessica on April 5, 2010
  25. Chemistry

    Consider a chromium-silver voltaic cell that is constructed such that one half-cell consists of the chromium, Cr, electrode immersed in a Cr(NO3)3 solution, and the other half-cell consists of the silver, Ag, electrode immersed in a AgNO3 solution. The two

    asked by TP on May 12, 2014
  26. Chemistry (urgent)

    Hi, I have a few chemistry problems that I'm having trouble solving. I put my attempted solutions after the problems in *'s. There was one problem I had no idea how to solve. What concentration of silver chromate (Ksp = 9.0 x 10-12) will dissolve to make a

    asked by Maggie on April 12, 2010
  27. Chemistry (Ksp and Solubility)

    Kindly answer my query as early as possible.Please solve the complete question A solution contains 0.01M Ag+ and 0.001M Ba+2 . ksp of Ag2CrO4 = 2.4*10e-12 ksp of BaCrO4 = 1.17*10e-10 A solution of K2CrO4 is added to this solution. Which will precipitate

    asked by Bilal Asif on November 8, 2015
  28. Chemistry

    Write the equations describing the electrode reactions and the net cell reaction for this electrochemical cell containing tin and silver: Sn(s)|Sn2 (aq)||Ag (aq)|Ag(s) what is the equation for cathode, anode, and net cell reaction

    asked by Katie on February 27, 2012
  29. Chemistry

    Write the equations describing the electrode reactions and the net cell reaction for this electrochemical cell containing tin and silver: Sn(s)|Sn2 (aq)||Ag (aq)|Ag(s) what is the equation for cathode, anode, and net cell reaction

    asked by Katie on February 27, 2012
  30. chemistry

    A sample of silver chromate (Ag2CrO4) has a mass of 29.0 g. (a) How many Ag+ ions are present? (b)What is the mass in grams of one formula unit of silver chromate? (c) How many CrO42- ions are present?

    asked by q on January 13, 2010
  31. chem 2

    Consider a chromium-silver voltaic cell that is constructed such that one half-cell consists of the chromium, Cr, electrode immersed in a Cr(NO3)3 solution, and the other half-cell consists of the silver, Ag, electrode immersed in a AgNO3 solution. The two

    asked by Anonymous on May 29, 2014
  32. Chemistry

    Hi, I have a few chemistry problems that I'm having trouble solving. I put my attempted solutions after the problems in *'s. There was one problem I had no idea how to solve. What concentration of silver chromate (Ksp = 9.0 x 10-12) will dissolve to make a

    asked by Maggie on April 12, 2010
  33. Chemistry

    In a titration for the determination of the chloride ion, a solution of 0.1M agno3 is used against a solution, the volume of which is 100ml. At the completion of the titration, the residual concentrations of silver and chloride ions are equal and the total

    asked by Michelle on October 22, 2014
  34. Chem -plz check work

    so i've worked on this some more, now I am asking if someone will plz check my work 2 half cells in a galvanic cell consist of one iron Fe(s) electorde in a solution of iron (II) sulphate FeSO4(aq)and a silver Ag(s) electrode in a silver nitrate solution,

    asked by Sarah H on June 3, 2008
  35. Chemistry

    In a titration for the determination of the chloride ion, a solution of 0.1M agno3 is used against a solution, the volume of which is 100ml. At the completion of the titration, the residual concentrations of silver and chloride ions are equal and the total

    asked by Michelle on October 22, 2014
  36. chemistry

    Nitrogen gas, N2, is usually a very inert gas and thus, is often employed in dry boxes. However, it would be a poor choice for use in a dry cell with which of the following substances? A) uranium metal B) Cu/Sn alloys C) Li metals D) Ca metals E) none of

    asked by blobface on April 21, 2007
  37. CHEMISTRY--PLEASE HELP, URGENT

    What concentration of silver chromate (Ksp = 9.0 x 10-12) will dissolve in 500. mL of 0.01 M aqueous silver nitrate?

    asked by Maggie on April 12, 2010
  38. chemsitry

    How many moles of silver chromate will be produced from 146 g of silver nitrate?

    asked by lucy on November 3, 2014
  39. Statistics

    QUESTION 1 Use the following scenario and data for all the questions The lives of Lithium batteries used in a type of cell phones are normally distributed with an unknown standard deviation. A simple random sample of equation batteries is selected. The

    asked by Neyra on October 31, 2017
  40. chemistry

    What raw materials are used to make lithium ion batteries? How are the raw materials used in the batteries processed? What chemical equations take place in the battery?

    asked by george on March 20, 2011
  41. Chem

    This is the problem: In a 1-L beaker, 203 ml of 0.307 M ammonium chromate was mixed with 137 ml of 0.269 M chromium (III) nitrite to produce ammonium nitrite and chromium (III) chromate. Write the balanced chemical reaction occuring here. If the percent

    asked by Anonymous on October 30, 2006
  42. Chemistry

    Are these reactions correct? I was told to do them in "reaction de deplacement simple", or simple moving reaction, I think. 1. Mg + 2HCl = H2 + MgCl2 2. Li + HCl = H2 + LiCl 3. Fe + 2HCl = H2 + FeCl2 4. Zn + 2HCl = H2 + ZnCl2 5. Ca + 2HCl = H2 + CaCl2 6.

    asked by Holly on October 2, 2008
  43. Chemistry

    Little confusing!! I need help PLZ!!! Two half cells in a galvanic cell consist of one iron (Fe(s)) electrode in a solution of iron (II) sulphate (FeSO4(aq)) and a silver (Ag(s)) electrode in a silver nitrate solution. a. Assume the cell is operating as a

    asked by Andrew on June 17, 2011
  44. Chemistry

    How would you write a skeleton equation for these reactions I always get confused nickel(II)chloride(s)+oxygen(g)= nickel (II) oxide(s) +dichlorine pentaoxide (g) lithium chromate(aq)+barium chloride(aq)= lithium chloride(aq)+barium chormate(s)

    asked by Taylor on February 1, 2009
  45. chemistry

    I have 3 questions I need help with 1. mix 120ml of 0.320M silver nitrate with 40ml of 0.320M potasium chromate. What mass of silver chromate is produced? 2. Calculate the mass of white solid CaCO3 that forms when 98ml of a 0.1M Ca(NO3)2 solution is mixed

    asked by Krissy on January 27, 2010
  46. chemistry

    using the metals aluminum and silver,give a diagram of a galvanic cell in a nitrate solution. include the anode and cathode half reaction, the cell voltage, the electron/ion flow.

    asked by nico on May 16, 2012
  47. Chemistry

    it takes 37.50 mL of 0.152 M sodium chromate to titrate 25.00 mL of silver nitrate. what is the molarity of the silver nitrate solution

    asked by Kendra on November 15, 2012
  48. chemistry

    a cell is constructed by immersing a strip of silver in .10 M AgNO3 solution and a strip of lead in 1.0 M Pb(NO3)2 solution. A wire and salt bridge complete the cell. What is the potential of the silver electrode in the cell?

    asked by audrey on December 9, 2010
  49. Chemistry

    Electrochemisry. Candy Chemist wishes to determine the concentration of CrO4^2- by electrochemical means in solution, and subsequently the Ksp of Ag2CrO4. She sets up one half-cell comprised of the Ag+|Ag couple (E=+0.799V) and a second half-cell in which

    asked by KRH on April 28, 2016
  50. Chemistry

    which of the following is not soluble ? (1)sodium chromate (2)lead(II)iodide (3)lithium hydroxide (4)ammonium sulfate is it 2, im not sure.

    asked by Jackson on February 13, 2011
  51. English composition

    This is my digital camera. I will explain this digiatal camera. Push the power button on the right on the top. Then you can use this one. When you push the power button, you can have the picture mode. Press the button on the far right on the top. Then you

    asked by John on November 3, 2008
  52. Chemistry

    Consider the NiCd (nickle cadmium) cell found in rechargeable batteries. 1.)Which element is the cathode when the cell is recharging (being electrolytic)? 2.)How many cells must be present to produce 1.2 V 3.)Which element is the anode when the cell is

    asked by Sara on June 16, 2015
  53. Chem

    which of the following is not soluble ? (1)sodium chromate (2)lead(II)iodide (3)lithium hydroxide (4)ammonium sulfate don't understand, please help.

    asked by Jackson on February 13, 2011
  54. Chemistry

    Write balanced net ionic equations for the precipitation reactions that occur when the following solutions are mixed. If no reaction occurs, write "no reaction" a) silver nitrate and lithium hydroxide b) ammonium sulfide and cobalt (II) bromide I'm

    asked by Kanade on April 24, 2018
  55. Chemistry

    is lithium thionyl chloride batteries rechargeable or disposable

    asked by Anonymous on May 2, 2010
  56. Electrochemistry

    Ag2CrO4(s) + 2e- 2Ag(s) + CrO42-(aq) A chemist wishes to determine the concentration of CrO42- electrochemically. A cell is constructed consisting of a saturated calomel electrode (SCE; which has a reduction potential of 0.242 V relative to the SHE) and a

    asked by Daniel on May 20, 2008
  57. George School

    Ag2CrO4(s) + 2e- 2Ag(s) + CrO42-(aq) A chemist wishes to determine the concentration of CrO42- electrochemically. A cell is constructed consisting of a saturated calomel electrode (SCE; which has a reduction potential of 0.242 V relative to the SHE) and a

    asked by Daniel on May 20, 2008
  58. Chemistry

    Which of the following redox reactions are spontaneous -- SN2+(aq)+BA(s)->Sn(s)+Ba2+(aq) 2AG+(ag)+2Cl-(aq)->2Ag(s)+C12(g) ZN(s)+F2(g)->2F-(aq)+Zn2+(aq) 2LI(s)+Co2+->(aq)->2Li+(aq)+Co(s) 2I-(aq)+K+(aq)->I2(s)+K(s) I believe it is A, C & E

    asked by Mary on June 7, 2010
  59. chemistry

    A certain voltaic cell has a standard cell voltage of 1.22 V, and 3 electrons are transferred in the overall cell reaction. What is the value of the thermodynamic equilibrium constant for this cell reaction at 298K?

    asked by will on March 15, 2011
  60. chemistry

    consider the reaction in which 410 grams of Ca(NO3)2 react with just the right amount of lithium metal in a single replacement reaction. 1-how many grams of lithium are required? 2- how many grams of each product can be produced?

    asked by need help on February 15, 2010
  61. Chem Help!

    I really need help for my homework on how to write the balanced equation for the following reactions. 1) Sodium reacts with iron(lll)oxide to produce sodium oxide and iron. Type of reaction: Balanced Equation: 2) Hydrogen bromide forms from hydrogen and

    asked by Lisa on April 8, 2008
  62. Statistics (Math 210)

    Hi there, I am doing my statistics homework and am having trouble with a few problems. I sincerely appreciate any help I receive! :) A manufacturer claims that the mean lifetime of its lithium batteries if 1200 hours. A homeowner selects 25 of there

    asked by Chris on December 4, 2016
  63. Chemistry

    One half-cell of a concentration cell consists of a silver wire dipping into a 1.00 M solution of Ag+. The second half-cell consists of a silver electrode in a solution containing an unknown concentration of Ag+. The measured cell potential was determined

    asked by Student on February 26, 2008
  64. chemistry

    Write the oxidation and reduction half-reactions for a silver-chromium voltaic cell. Identify the anode, cathode, and the direction of electron flow. Ag+ + e-  Ag Cr  Cr2+ + 2e- or Cr  Cr3+ + 3e- ????? Which is the correct equation for the

    asked by S on June 16, 2016
  65. math

    a bag has 5 silver 3 gold and 2 brass buttons . what is the probability of choosing a silver then a gold button with replacement

    asked by barbie on June 15, 2012
  66. Chemistry

    a sample of silver chromate has a mass of 78.6 grams?

    asked by david on January 28, 2013
  67. Chemistry 2

    What is the solubility of silver chromate in pure water

    asked by Joe on March 25, 2014
  68. chem

    One method for reclaiming silver metal from silver chloride results in a 94.6% yield. Calculate the actual mass of silver that can be produced in this reaction if 100.0 g of silver chloride is converted to silver metal. 2AgCl(s) y 2Ag(s) . Cl2(g)

    asked by Anonymous on June 1, 2008
  69. Chemistry

    Choose the two half-reactions from a table of standard reduction potentials that most closely approximate the reaction that occur within the battery. What is the standard voltage generated by a cell operating with these half-reactions? 2Li(s) + Ag2CrO4(s)

    asked by Jay on May 7, 2011
  70. chemistry

    A reaction is run in which dissolved silver ions are reduced in the presence of solid copper. THis reaction can be used to produce a silver coating on a copper wire frame. .249g of copper wire was placed in a 100 mL of a 0.500 M solution of silver nitrate.

    asked by mmmmm on April 19, 2011
  71. Gen Chem II

    You conduct another experiment on silver condensation. You add 8.0 g of silver nitrate to 200 mL of pure water. You attach a single 850 mAh AAA battery (at 1.3 V) to the electrochemical cell. You can assume that the entire battery charge is useable for

    asked by kyle on November 18, 2013
  72. Algebra

    Wow, this one is hard to explain... First, I'll give you the info you need to solve the problem. Tough Cell Batteries Battery Life in Hours Lower Extreme: 84 Upper Extreme: 140 Lower Quartile: 97 Upper Quartile: 110.5 Median: 104.5 If you need more info

    asked by Celina on November 24, 2008
  73. Chemistry

    A chemist wishes to determine the concentration of CrO4-2 ions electrochemically. A cell is constructed consisting of saturated calomel electrode (SCE) and a silver wire coated with Ag2CrO4. The SCE is composed of mercury in contact with a saturated

    asked by jake on May 28, 2008
  74. Chemistry

    seriously, any help would be much appreciated. You conduct another experiment on silver condensation. You add 8.0 g of silver nitrate to 200 mL of pure water. You attach a single 850 mAh AAA battery (at 1.3 V) to the electrochemical cell. You can assume

    asked by kyle on November 18, 2013
  75. Algebra! Help needed!

    I'll try posting this again since no one responded before. Wow, this one is hard to explain... First, I'll give you the info you need to solve the problem. Tough Cell Batteries Battery Life in Hours Lower Extreme: 84 Upper Extreme: 140 Lower Quartile: 97

    asked by Celina on November 24, 2008
  76. ChemISTRY (WEBWORK)

    A student measures the potential for cells containing A+B+and C+ ions and their metals and records his data in the table below: ............. Overall Reaction ................Potential (V) Cell#1'''''''A(s) A+(aq) B+(aq) B(s)''''''''''''0.90

    asked by laila on July 14, 2010
  77. Science- chemistry

    fuzzy silver coating is impure silver. it can be converted back into silver nitrate by reacting it with nitric acid what has been done to the reaction mixture to recover solid silver nitrate?

    asked by Josh on March 7, 2013
  78. Chem

    consider the equilibrium reaction: pbcro4(s) pb^2+ (aq) +cro4^2- (aq). A saturated solution of lead chromate, pbcro4 has a lead ion concentration of 1.4 x 10^-7 m. what is the value of the solubility product ksp for lead chromate?

    asked by Mad on June 3, 2013
  79. college chem

    Two questions where I have to write a balanced net ionic equation. 1. Write a balanced net ionic equation for the reaction that occurs when aqueous solutions of sodium chromate and silver nitrate are mixed 2. Write a balanced net ionic equaion reaction for

    asked by kelly on June 2, 2009
  80. chemistry

    A chemist wishes to determine the concentration of CrO4-2 ions electrochemically. A cell is constructed consisting of saturated calomel electrode (SCE) and a silver wire coated with Ag2CrO4. The SCE is composed of mercury in contact with a saturated

    asked by Tom on May 27, 2008
  81. Urgent Chem help.plz

    The crystal structure of lithium sulfide (Li2S) is pictured here. (Intro 1 figure) The edge length of the unit cell is 5.88*10^2^2 pm. i guess it is FCC ( face cenred cubic) 1-- What are the coordination numbers of and Li^+ and S^2- in the lithium sulfide

    asked by Julia on January 24, 2009
  82. statistics

    A manufacturer claims that the mean lifetime of its lithium batteries is 1400 hours. A homeowner selects 25 of these batteries and finds the mean lifetime to be 1380 hours with a standard deviation of 80 hours. Test the manufacturers claim. Use alpha =

    asked by S on December 5, 2015
  83. 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
  84. chemistry

    Please help !? Knowing that the concentration of Ag+ in a silver chromate solution is 1.5 x 10-3 M, calculate its solubility product at 25°C.

    asked by ryan on February 2, 2015
  85. chemistry

    A sample of silver chromate (Ag2CrO4) has a mass of 29.0 g. How many CrO42- ions are present?

    asked by w on January 20, 2010
  86. chemistry

    mix 120ml of 0.320M silver nitrate with 40ml of 0.320M potasium chromate. What mass of silver chromate is produced? this is what i have so far 2AgNO3 + K2CrO4 --> Ag2CrO4 + 2KNO3 molar mass of 2agno3 = 277.81 molar mass of k2cro4 = 194.2 molar mass of

    asked by Krissy on January 29, 2010
  87. Statistics

    A battery manufacturer is positive that its AA batteries last for 1,000 hours. However, you’re working for Consumer Reports and you don’t agree with what they say about their product. So, you buy 400 batteries and you test them out. Your findings are

    asked by Mike on November 22, 2011
  88. Chemistry

    You discover a new cell type that contains measurable amounts of silver ions (Ag+) in it. You find that the concentration of Ag+ inside the cell is still 10 times lower than the concentration outside. Calculate the amount of membrane potential that results

    asked by Tenshi on July 27, 2016
  89. Chemistry

    The cell diagram for the lead-acid cell that is used in automobile and truck batteries is Pb(s) l PbSO4 (s) l H2SO4 (aq) l PbO2(s), PbSO4(s) l Pb (s) where the comma between PbO2 (s) and PbSO4 (s) denotes a heterogeneous mixture of the two solids and the

    asked by Bridget on February 23, 2014
  90. chemistry

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

    asked by Monique on November 25, 2011
  91. chemistry

    The reaction described by the equation Zn + Hg2Cl2 2Hg +Zn+2 + 2Cl is run on electrochemical cell. The E^0 of the cell at 25 degrees C is 1.03V. In the same cell, [Cl-]=.10 M and [Zn+2] is unknown, and the measured cell voltage is 1.21V. Compute the value

    asked by Dylan on April 12, 2012
  92. Chem 2

    Calculate the solubility of silver chromate, Ag2CrO4- in 0.005M Na22Cr)4- Ksp=2.6X10-12 HELP PLEASE......

    asked by DebC on March 2, 2012
  93. College Chem 2

    calculate the solunility of silver chromate, Ag2CrO4, in 0.005 M NA2CrO4- Ksp=2.6x10-12 Please help.....

    asked by Deb on March 3, 2012
  94. Science

    A cell can no longer supply energy when it cannot provide a closed path for electrons and ions to travel. Based on your knowledge of cells and batteries, where can a cell fail? Provide 3 specific examples. Unfortunately, the only example I can think of is

    asked by Lucy X on September 29, 2008
  95. chemistry- electrochemical cell

    What makes this an oxidation-reaction? 3Ag2S+2Al(s) -> Al2S3+6 Ag(s)? Write the half-reactions showing the oxidation and reduction reactions. Identify which is the oxidation reaction and which is the reduction reason. What is oxidized in the reaction? What

    asked by princess on March 25, 2012
  96. chem

    The crystal structure of lithium sulfide (Li2S) is pictured here. (Intro 1 figure) The edge length of the unit cell is 5.88*10^2^2 pm. i guess it is FCC ( face cenred cubic) 1-- What are the coordination numbers of and Li^+ and S^2- in the lithium sulfide

    asked by Dr Bob plz help on January 24, 2009
  97. Chem.

    How would someone extract silver from silver nitrate? *silver isn't soluable in water so I was thinking I wouldn't be able to do a single displacment reaction. I don't know how to go about this :S

    asked by Lena on November 24, 2008
  98. Physics

    A bottle of juice is sealed under partial vacuum, with a lid on which a red dot or "button" is painted. Around the button the following phrase is printed: "Button pops up when seal is broken." Explain why the button remains pushed in when the seal is

    asked by Mary on April 8, 2007
  99. Chemistry

    Choose the two half-reactions from a table of standard reduction potentials that most closely approximate the reaction that occur within the battery (Pacemaker). What is the standard voltage generated by a cell operating with these half-reactions? (i got

    asked by Jay on May 7, 2011
  100. Chemistry

    A galvanic cell is made with aluminum and zinc electrodes. (For Ag^+(aq)+(e^-)--->Ag(s), E=0.80 V and for Cu^2+(aq)+(2e^-)--->Cu(aq), E=0.34 V) Write the standard cell notation for this cell. Wouldn't it be silly to use the potentials for copper and silver

    asked by Aubrey on June 17, 2007