1. chemistry

    For the reaction H2(g) + I2(g) ↔ 2 HI(g), you have the initial concentrations [H2] = 0.15 and [I2] = 0.05. Keq for the reaction at this temperature is 4.5 x 10-6. Make a reaction table. Include rows for initial concentration, change in concentration, and

    asked by Anonymous on April 23, 2012
  2. chemistry

    For the reaction H2(g) + I2(g) ¡ê 2 HI(g), you have the initial concentrations [H2] = 0.15 and [I2] = 0.05. Keq for the reaction at this temperature is 4.5 x 10-6. Make a reaction table. Include rows for initial concentration, change in concentration,

    asked by Anonymous on May 4, 2012
  3. chemistry

    For the reaction H2(g) + I2(g) ↔ 2 HI(g), you have the initial concentrations [H2] = 0.15 and [I2] = 0.05. Keq for the reaction at this temperature is 4.5 x 10-6. Make a reaction table. Include rows for initial concentration, change in concentration, and

    asked by Anonymous on April 24, 2012
  4. chemistry 12

    Equilibrium concentrations (a)(mol/L)// (b)(mol/L)// (c)(mol/L) 0.040 // 0.066 // 1.72x10^-2 0.080 // 0.017 // 8.8x10^-3 0.030 // 0.024 // 4.7x10^-3 My data was collected at 25○C for the reaction A(g) + B(g) = C(g) What i have to do now is involving

    asked by Robyn on September 26, 2011
  5. Chemistry

    H2 (g) + I2 (g) 2 HI (g) If the initial concentrations of H2 and I2 are 1.0 M and the initial concentration of HI is 0.5 M (Kc = 54.3 at 430oC). (a) Is the reaction at equilibrium? (b) If not, which way will the reaction proceed?

    asked by Troy on May 4, 2014
  6. Chemistry

    The reaction X + Y --> products was studied using the method of initial rates. The initial rate of consumption of X was measured in three different experiments. What is the value of the rate constant, k? *concentrations are in mol/L and initial rates are

    asked by Jamie on February 23, 2011
  7. Chemistry

    At a particular temperature, K = 3.75 for the following reaction. SO2(g) + NO2(g) SO3(g) + NO(g) If all four gases had initial concentrations of 0.520 M, calculate the equilibrium concentrations of the gases

    asked by Erin on May 5, 2010
  8. Chemistry

    At a particular temperature, K = 3.75 for the following reaction. SO2(g) + NO2(g) SO3(g) + NO(g)\ If all four gases had initial concentrations of 0.550 M, calculate the equilibrium concentrations of the gases.

    asked by Amber on March 27, 2011
  9. AP Chem

    At a particular temperature, K = 3.75 for the following reaction. SO2(g) + NO2(g) SO3(g) + NO(g) If all four gases had initial concentrations of 0.580 M, calculate the equilibrium concentrations of the gases.

    asked by Bill on January 8, 2012
  10. chemistry

    At a particular temperature, K = 3.75 for the following reaction. SO2(g) + NO2(g)= SO3(g) + NO(g) If all four gases had initial concentrations of 0.840 M, calculate the equilibrium concentrations of the gases.

    asked by Enrique on January 16, 2009
  11. tommy

    At a particular temperature, K = 3.75 for the following reaction. SO2(g) + NO2(g) SO3(g) + NO(g) If all four gases had initial concentrations of 0.870 M, calculate the equilibrium concentrations of the gases.

    asked by CHEMISTRY on January 9, 2012
  12. Chemistry

    The reaction between NO (nitric oxide) and oxygen is a key step in the formation of acid rain. O2(g) + 2NO(g) → 2NO2(g) A series of experiments were run, each of which starts with a different set of reactant concentrations. From each experiment an

    asked by Roman on March 27, 2012
  13. Chemistry

    Complete this table of initial and final concentrations HF(aq) + KOH(aq) KF(aq) + H20(l) Initial concentrations: HF-2.0M KOH-1.0M KF-0M Final Concentrations? how do I set this up to figure out the final concentrations? How can I tell which of the following

    asked by Cat on July 16, 2013
  14. chemistry

    I have gotten the equilibrium concentrations of N202 to be 2M and N02 to be 2M also. After equilibirum is reached, a pistons is used to decrease the flask volume to 3L. Once equilibrium is established find the concentration and moles of each gas. K = 2 How

    asked by A on October 9, 2008
  15. equilibrium question

    For the reaction N2(g)+o2(g)2NO(g), you have the initial concentration [N2]=0.03 and [O2]=0.08 Keq for the reaction at this temperature is 5.7*10^-5. What are the equilibrium concentrations for N2, O2, and NO? Please help me with this!

    asked by Chrissy on April 13, 2007
  16. Chemistry

    A reaction: A(aq) + B(aq) C(aq) has a standard free-energy change of –4.65 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively?

    asked by Katherine on November 24, 2013
  17. Chemistry

    A reaction A+B---> C has a standard free energy change of -5.13 kj/mol at 25 degrees celcius, What are the concentrations of A, B, and C at equilibrium if at the beginning of the reaction there concentrations are .3M, .4M, and 0M respectively?

    asked by juan777 on September 6, 2011
  18. Chemistry

    A reaction : A(aq)+B(aq) --> C(aq) has a standard free-energy change of –4.01 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M,

    asked by Alex on April 28, 2014
  19. Chemistry

    A reaction A(aq)+B(aq)C(aq) has a standard free-energy change of –3.35 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively?

    asked by ACDub on March 31, 2014
  20. Chemistry

    A reaction has a standard free-energy change of –4.60 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively?

    asked by MyHumPs on April 25, 2014
  21. biochemistry

    Reaction A B proceeds with H = 240 kJ×mol-1; S = 40 J×K-1×mol-1. Substance A was taken at initial concentration 2 mM. Determine the concentrations of A and B after the reaction reaches equilibrium at 298 K.

    asked by Anonymous on September 15, 2011
  22. Chemistry(Please check)

    For the reaction, 2 SO2(g) + O2(g) == 2 SO3(g), at 450.0 K (Kelvin) the equilibrium constant, Kc, has a value of 4.62. A system was charged to give these initial concentrations, (SO3) = 0.254 M and (O2) = 0.00855 M, and (SO2) = 0.500 M. In which direction

    asked by Hannah on March 4, 2012
  23. Chemistry

    At a particular temperature, K=3.75 for the following reaction. SO2(g) + NO2(g) (reversible arrows) SO3(g) + NO(g) If all four gases had initial concentrations of 0.500 M, calculate the equilibrium concentrations of the gases. K=(.5+x)^2/(.5-x^2) solve for

    asked by Taasha on July 30, 2007
  24. Chemistry

    A reaction: A(aq)+B(aq)C(aq) has a standard free-energy change of –4.69 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively? I

    asked by Robin on November 7, 2014
  25. science

    The equilibrium constant for the gas phase reaction N2O4 ⇀↽ 2 NO2 at a certain temperature is K = 0.0466. If the initial concentrations are [N2O4] = 1.0 M, [NO2] = 0.0 M, what are the final concentrations of [N2O4] and [NO2], respectively? 1. 1.0 M ;

    asked by cora on February 2, 2016
  26. Rate Laws

    If the initial concentration of AB is 0.210 M, and the reaction mixture initially contains no products, what are the concentrations of A and B after 75 s? The reaction is in the second order: rate=k[AB]^2 The rate constant is k=5.4*10^2 M*s I don't

    asked by Kyle on February 20, 2010
  27. Chemistry

    Kc=1. The initial concentrations are A = 0M, B = 0M, C=10M. A+B --> C calculate the reaction quotient. (c)/(a)(b) = 10/0 .. is the answer zero?

    asked by Jenny on February 9, 2011
  28. Chemistry

    Experiment 1: A has .20 M, B has .20 M and the initial rate is 2.0*10^-4M/min Experiment 2: A has .20 M, B has .40 M, and the initial rate is 8.0*10^-4M/min Experiment 3: A has .40 M, B has .40 M, and the initial rate is 1.6*10^-3M/min Using the data

    asked by Finn on August 21, 2015
  29. Chemistry

    The following reaction was monitored as a function of time: AB--->A+B A plot of 1/[AB] versus time yields a straight line with slope 5.2×10−2 . If the initial concentration of is 0.240M , and the reaction mixture initially contains no products, what are

    asked by Ellen on July 18, 2010
  30. Chemistry

    Sulfur dioxide reacts with chlorine at 227 oC: SO2(g) +Cl2(g) ↔ SO2Cl2(g) Kp for this reaction is 5.1 x 10-2 atm-1. Initially, 1.00 g each of SO2 and Cl2 are placed in a 1.00 L reaction vessel. After 15 minutes, the concentration of SO2Cl2 is 45.5

    asked by JOhn Boku on February 23, 2015
  31. college chemistry

    The rate of the following reaction: 2 NO2 2 NO + O2, is characterized by the rate constant k = 0.775 L·mol-1s-1. What is the half-life for this reaction at the same conditions when the initial concentrations are 0.0115 M? (Round your answer to 3

    asked by sparkle on November 10, 2010
  32. chemistry

    The equilibrium constant Kc for the reaction C D + E is 7.90 * 10^-5. The initial composition of the reaction mixture is [C]=[D]=[E]=1.10*10^-3. What is the equilibrium concentrations of C, D, and E? C=? D=? E=?

    asked by Brunette on November 5, 2012
  33. Chemistry

    If the initial concentration of is 0.250 , and the reaction mixture initially contains no products, what are the concentrations of and after 80 ?

    asked by Anonymous on February 28, 2010
  34. Physical Science

    why does the maximum initial reaction rate cannot be reached at low substrate concentrations.

    asked by Ron on August 2, 2011
  35. college math/chemistry

    chemical reaction: E + S E~S E-S indicates a bidirectional reaction with different forward and backward rate constants. we can call these k1, k2, k3 and k4 in the above equation. Here, the enzyme binds to the substrate; the initial complex E~S then

    asked by Heather on December 9, 2010
  36. Chemistry12

    For the reaction NO2 + NO = N2O3 If at a particular temperature, K was 575 and the equilibrium concentration of N2O3 was 2.5M, calculate the equilibrium concentrations of NO2 and NO if they both had the same initial concentrations. I have this information

    asked by Moriah on May 31, 2011
  37. Chemistry

    At 2000°C the equilibrium constant for the reaction is Kc = 2.4 ✕ 103. 2 NO(g) equilibrium reaction arrow N2(g) + O2(g) If the initial concentration of NO is 0.160 M, what are the equilibrium concentrations of NO, N2, and O2? I do not even know how

    asked by Ariana on November 28, 2014
  38. chemistry

    for the reaction A + B C the concentrations of AB, and C are 0.2M, 0.4M and0.)M respectively at 0 minutes. After 30 minutes the concentrations of A and B drop to ).080mM and 0.280M respectively, while the concentration of C rises to 0.120M. Calculate the

    asked by carol on December 5, 2014
  39. Chem

    Hi! I need help with this question: Sulfur dioxide reacts with chlorine at 227 oC: SO2(g) +Cl2(g) ↔ SO2Cl2(g) Kp for this reaction is 5.1 x 10-2 atm-1. Initially, 1.00 g each of SO2 and Cl2 are placed in a 1.00 L reaction vessel. After 15 minutes, the

    asked by Anonymous on February 21, 2013
  40. chemistry

    If the initial concentration of AB is .250 M, and the reaction mixture initially contains no products, what are the concentrations of A and B after 75s?of XY after 5.0 X10^1s?

    asked by Ashton on February 22, 2010
  41. Chemistry, equilibrium molarity

    At a particular temperature, K=3.75 for the following reaction. SO2(g) + NO2(g) (reversible arrows) SO3(g) + NO(g) If all four gases had initial concentrations of 0.500 M, calculate the equilibrium concentrations of the gases. This is what I've done so

    asked by Taasha on July 31, 2007
  42. chemistry

    A voltaic cell is constructed based on the following reaction and initial concentrations: Fe^2+,( 0.0055 M ) + Ag+,( 2.5 M ) ----> Fe^3+,( 0.0055 M ) + Ag(s)

    asked by lynn on March 29, 2009
  43. chemistry

    Calculate [Fe^2]+ when the cell reaction reaches equilibrium? A voltaic cell is constructed based on the following reaction and initial concentrations: Fe^2+,( 0.0050 M ) + Ag+,( 2.5 M ) ----> Fe^3+,( 0.0050 M ) + Ag(s)

    asked by HELP!!! on March 29, 2009
  44. Chemistry

    The following table contains data for the equilibrium reaction CH3COOH(g)+ C2H5OH(g)↔ CH3COOC2H5(g)+ H2O(g) T = 100oC. Each row in the table represents a different experiment (diffferent intial concentrations). Initial concentration Equilibrium

    asked by Ava on September 24, 2009
  45. Concentration and Reaction

    The rate of the following reaction: Radioactive decay of 90Sr, is characterized by the rate constant k = 0.024 year-1. What is the half-life (in years) for this reaction at the same conditions when the initial concentrations are 0.0356 M? (Round your

    asked by Confused on November 21, 2010
  46. Chemistry II

    At a certain temperature, Kc = 33 for the reaction: H2(g) + I2(g) 2HI(g) Assume that the initial concentrations of both H2 and I2 are 6.00 x 10-3 mol/L. Find the concentration of each reactant and product at equilibrium.

    asked by Tiffany on February 22, 2011
  47. chemistry

    The following reaction is a single-step, bimolecular reaction: CH3Br + NaOH --> CH3OH + NaBr When the concentrations of CH3Br and NaOH are both 0.135 M, the rate of the reaction is 0.0070 M/s. (a) What is the rate of the reaction if the concentration of

    asked by katie on March 24, 2012
  48. Chemistry

    Hi I am doing a lab report for the kinetic behaviour of phenolphthalein in aqueous solutions. I did two runs, each with different concentrations of OH-, and Cl-. I have graphed x, ln x, and 1/x to determine which one has the most linear plot to determine

    asked by Sara on February 24, 2011
  49. Organic Chem

    The following reaction is a single-step, bimolecular reaction: CH3Br + NaOH ---> CH3OH + NaBr When the concentrations of CH3Br and NaOH are both 0.150 M, the rate of the reaction is 0.0090 M/s. a) what is the rate of the reaction if the concentration of

    asked by Bryan on November 9, 2011
  50. Chemistry

    If Kc = 0.143 at 25°C for this reaction, find the equilibrium concentrations of C6H12 and CH3C5H9 if the initial concentrations are 0.200 M and 0.075 M, respectively. a. [C6H12] = 0.041 M, [CH3C5H9] = 0.041 M b. [C6H12] = 0.159 M, [CH3C5H9] = 0.116 M c.

    asked by bob on January 30, 2011
  51. Biochemistry

    The kinetic parameters of the reaction of lactate to pyruvate can be measured by following the formation of NADH from NAD+. It can also be measured in the reverse direction, however, at high concentrations of NADH the reaction cannot be monitored at 340

    asked by Student on November 20, 2016
  52. chm

    The equilibrium constant for the equation 2 H2(g) + CO(g) CH3OH(g) Is 19 at a certain temperature. If there are 3.11 x 10-2 moles of H2 and 5.79 x 10-3 moles of CH3OH at equilibrium in a 6.75 L flask. What is the concentration of CO? At 1280 °C the

    asked by vikki on March 16, 2015
  53. Chem

    The apparent equilibrium constant for the reaction A + B 2C is Kc= 4.11 at 298.2 K. Given that the initial concentrations of A, B, and C are .10M, .10M, and zero, respectively, find the equilibrium concentrations of A, B, and C. I had this long, drawn out

    asked by Chris on April 16, 2007
  54. chemistry. please help!!!

    A voltaic cell is constructed based on the following reaction and initial concentrations: Fe2+ (0.0050M) + Ag+ (2.2M) -> Fe3+ (0.0050M) + Ag(s) calculate [Fe2+] when the cell reaction reaches equilbrium i'm so confused. please help. thank you!

    asked by Theresa P. on March 27, 2009
  55. Chemistry

    X2 + Y2 2XY 0.50 mole each of X2 and Y2 are placed in a 1.0 litre vessel and allowed to reach equilibrium at a given temperature. The equilibrium concentrations of XY is found to be 0.025 mol/L. What is the equilibrium cosntant for this reaction? Do I just

    asked by Janna on May 15, 2007
  56. Chemistry

    The reaction 2H2S(g)⇌2H2(g)+S2(g) Kc=1.67×10−7 at 800∘C is carried out with the following initial concentrations: [H2S] = 0.300 M , [H2] =0.300 M , and [S2] = 0.00 M. Find the equilibrium concentration of [S2].

    asked by hoooo on November 23, 2015
  57. Chemistry Problem

    At 25 oC, Kc = 0.145 for the following reaction in the solvent CCl4. 2BrCl Br2 + Cl2 A solution was prepared with the following initial concentrations: [BrCl] = 0.0482 M, [Br2]= 0.0307 M, and [Cl2]= 0.0277 M. What will their equilibrium concentrations be?

    asked by Peter on March 9, 2013
  58. AP Chem

    At 25 oC, Kc = 0.145 for the following reaction in the solvent CCl4. 2BrCl Br2 + Cl2 A solution was prepared with the following initial concentrations: [BrCl] = 0.0482 M, [Br2]= 0.0307 M, and [Cl2]= 0.0277 M. What will their equilibrium concentrations be?

    asked by Peter on March 9, 2013
  59. Chemistry

    Rates of reaction, redox reactions? 10 points? An structural isomer of bromobutane (C4H9Br) can be hydrolysed using aqueous sodium hydroxide to produce butanol. This can be represented by the following equation: C4H9Br(l) + OH-(aq) > C4H9OH(l) + Br-(aq)

    asked by Local on March 30, 2012
  60. Chemistry

    Chemistry HELP - Rates of reaction, redox reactions? 10 points? An structural isomer of bromobutane (C4H9Br) can be hydrolysed using aqueous sodium hydroxide to produce butanol. This can be represented by the following equation: C4H9Br(l) + OH-(aq) >

    asked by Lola on March 27, 2012
  61. chem help!

    Which statement is true about a reaction at equilibrium? A. The reaction is not reversible. B. The reaction concentrations of the reactants and products are always equal. C. The reaction rates of the forward and reverse reaction are always equal. D. The

    asked by jameson on September 9, 2016
  62. college chemistry

    For the following reaction: PCl5(g) PCl3(g) + Cl2(g) Kc=.058 If the initial concentration of PCl5(g) is .160M, calculate the equilibrium concentrations of all the components. (use quadratic)

    asked by Jerrett on March 24, 2010
  63. rate of reaction

    What is the initial rate of *appearance* of SO3(g)? a reaction and table are given: reaction: 2S02(g)+O2 -------> 2 SO3(g) Table note: i= initial, IRD= initial rate of disappearance; concentrations given in molarity (M) IRD given in M/s. Experiment [SO2]i

    asked by j on July 20, 2011
  64. Chemistry

    Ammonium ion (NH4^+) reacts with nitrite ion (NO2^-) to yield nitrogen gas and liquid water. The following initial rates of reaction have been measured for the given reactant concentrations. Expt. # [NH4^+] [NO2^-] Initial rate (M/hr) 1 0.010 0.020 0.020 2

    asked by Anonymous on February 7, 2013
  65. Chemistry

    Question : ka1 and ka2 values of H2X is given 1*(10)^-5 M and 1*(10)^-9 M.50cm^3 of 0.2 M KOH and 50 cm^3 of H2X of unknown concentration is mixed together and the pH of the final solution is given as 7. 1)Find the concentration of H2X 2)Find the pH of the

    asked by Aanya on May 21, 2017
  66. chemistry

    Question : ka1 and ka2 values of H2X is given 1*(10)^-5 M and 1*(10)^-9 M.50cm^3 of 0.2 M KOH and 50 cm^3 of H2X of unknown concentration is mixed together and the pH of the final solution is given as 7. 1)Find the concentration of H2X 2)Find the pH of the

    asked by To Aanya on May 21, 2017
  67. chemistry

    In a certain trial, the initial concentrations of Fe3+ and SCN- are both 1.00x10^-3 M and the initial concentration of FeSCN2+ is zero. Suppose that after the reation reaches equilibrium, the concentration of FeSCN2+ was found to be 1.19x10^-4 M. Use this

    asked by Elly on June 20, 2011
  68. Chemistry

    For the reaction NO2(g) + NO(g) = N2O3(g) If at particular temperature, K was 575 and equilibrium concentration of N2O3(g) was 2.5 M, calculate the equilibrium concentrations of NO2(g) and NO(g) if they both had the same initial concentrations. i have my

    asked by Sara on September 25, 2011
  69. Chemistry

    The equilibrium constant based on concentration is Kc = 190 for the reaction of carbon monoxide with hydrogen gas at 1000K. What can you infer about the relative rates of the forward and reverse reactions when the gases have the following concentrations at

    asked by SarahF275 on January 29, 2018
  70. Chemistry

    Consider the following reaction. CaSO4(s) reverse reaction arrow Ca2+(aq) + SO42-(aq) At 25°C the equilibrium constant is Kc = 2.4x10^-5 for this reaction. (a) If excess CaSO4(s) is mixed with water at 25°C to produce a saturated solution of CaSO4, what

    asked by Anonymous on October 29, 2016
  71. chem

    Given the concentrations, calculate the equilibrium constant for this reaction: I2(g) + Cl2(g)---> 2ICl(g) At equilibrium, the molar concentrations for reactants and products are found to be I2 = 0.50M, Cl2 = 0.60M, and ICl = 5.0M. What is the equilibrium

    asked by byke on November 14, 2012
  72. CHEMISTRY

    I need to find the rate law of a reaction but ive only done so when factors cancel out, this one has all different numbers and im not quite sure what to do with it. It has time taken every second (which im assuming are the different trials) and different

    asked by Amanda on March 20, 2014
  73. Chemistry

    I need to find the rate law of a reaction but ive only done so when factors cancel out, this one has all different numbers and im not quite sure what to do with it. It has time taken every second (which im assuming are the different trials) and different

    asked by Amanda on March 19, 2014
  74. CHEMISTRY

    I need to find the rate law of a reaction but ive only done so when factors cancel out, this one has all different numbers and im not quite sure what to do with it. It has time taken every second (which im assuming are the different trials) and different

    asked by Amanda on March 19, 2014
  75. Chemistry

    I need to find the rate law of a reaction but ive only done so when factors cancel out, this one has all different numbers and im not quite sure what to do with it. It has time taken every second (which im assuming are the different trials) and different

    asked by Nicole on March 19, 2014
  76. Chemistry

    I need to find the rate law of a reaction but ive only done so when factors cancel out, this one has all different numbers and im not quite sure what to do with it. It has time taken every second (which im assuming are the different trials) and different

    asked by Amanda on March 19, 2014
  77. Rate Law - Chemistry

    I need to find the rate law of a reaction but ive only done so when factors cancel out, this one has all different numbers and im not quite sure what to do with it. It has time taken every second (which im assuming are the different trials) and different

    asked by Amanda on March 19, 2014
  78. chem

    The activation energy of a certain reaction is 65.7 kJ/mol. How many times faster will the reaction occur at 51°C than at 8°C? State the assumptions you need to make in order to perform this calculation. (Select all that apply.) The collision model and

    asked by Hannah on February 11, 2013
  79. Chemistry

    The reaction of NO and O2 produces NO2. 2 NO(g) + O2(g) „_ 2 NO2(g) The reaction is second-order with respect to NO(g) and first-order with respect to O2(g). At a given temperature, the rate constant, k, equals 4.7 x 10^2 M^¡V2s^¡V1. What is the rate

    asked by Whitney on February 19, 2015
  80. Chemistry

    Kc for the reaction of hydrogen and iodine to produce hydrogen iodide, H2(g)+I2(g)f 2HI(g) is 54.3 at 430C. What will the concentrations be at equilibrium if we start with 0.240M concentrations of both H2 and I2?

    asked by mary on November 29, 2011
  81. Chemistry

    Calculate [Fe^2]+ when the cell reaction reaches equilibrium? A voltaic cell is constructed based on the following reaction and initial concentrations: Fe^2+,( 0.0055 M ) + Ag+,( 2.5 M ) ----> Fe^3+,( 0.0055 M ) + Ag(s) Calculate [Fe^2]+ when the cell

    asked by Sandra on March 28, 2009
  82. Chemistry

    Consider the following reaction: CO(g)+2H2(g)⇌CH3OH(g) This reaction is carried out at a specific temperature with initial concentrations of [CO] = 0.27 M and [H2] = 0.49 M. At equilibrium, the concentration of CH3OH is 0.11 M. Find the equilibrium

    asked by Donnie on June 16, 2016
  83. chemistry

    A reaction is represented by this equation: 2W( aq ) ⇌ X( aq ) + 2Y( aq ) K c = 5 × 10 −4 (a) Write the mathematical expression for the equilibrium constant. (b) Using concentrations of ≤1 M , make up two sets of concentrations that describe a

    asked by mayuri on November 16, 2015
  84. chemistry

    A reaction is represented by this equation: 2W( aq ) ⇌ X( aq ) + 2Y( aq ) K c = 5 × 10 −4 (a) Write the mathematical expression for the equilibrium constant. (b) Using concentrations of ≤1 M , make up two sets of concentrations that describe a

    asked by mayuri on November 16, 2015
  85. Chemistry

    To determine v max and km of Beta-galactosidase for lactose, the same amount of enzyme (1 ug per tube) was incubated with a series of lactose concentrations under conditions where product concentrations remained negligible. At each lactose concentration,

    asked by Ahmad M. on September 15, 2013
  86. Science

    To determine v max and km of Beta-galactosidase for lactose, the same amount of enzyme (1 ug per tube) was incubated with a series of lactose concentrations under conditions where product concentrations remained negligible. At each lactose concentration,

    asked by Ahmad M. on September 15, 2013
  87. Chemistry

    To determine v max and km of Beta-galactosidase for lactose, the same amount of enzyme (1 ug per tube) was incubated with a series of lactose concentrations under conditions where product concentrations remained negligible. At each lactose concentration,

    asked by Ahmad M. on September 15, 2013
  88. Biochem

    Consider the malate dehydrogenase reaction from the citric acid cycle. Given the following concentrations, calculate the free energy change for this reaction at 37.0 °C (310 K). ΔG°\' for the reaction is 29.7 kJ/mol. Assume that the reaction occurs at

    asked by Allison on May 3, 2017
  89. rate laws and concentrations :: Chemistry.

    A student studied the kinetics of the reaction of sodium hypochlorite and a vegetable dye by the method of pseudo order. He mixed 5 mL of a 0.67 M solution of NaOCl with 15 mL of a vegetable dye, he took a portion of the mixture and absorbance was measured

    asked by JACOBY on June 16, 2010
  90. chemistry

    Calculate the Gibbs free energy change for the reaction below when initial concentrations of CR3+ and Cu2+ are 1 M (F= 96500 J/V mole e-) 2Cr3+ (aq) + 3Cu (s) --> 2Cr (s) + 3Cu2+ (aq) I assume we use the deltaG= -nFE equation, but how do you know n when Cr

    asked by audrey on December 9, 2010
  91. Science (Chemistry)

    4. A Beer’s Law plot was prepared for the reaction A(aq) + B(aq) AB(aq), plotting absorption over AB(aq) concentration. The linear equation for this plot was y = 78.3x. A solution was prepared by mixing 10.0mL of 0.100M A with 5.00mL of 0.100M B and

    asked by Niharika on June 16, 2014
  92. Chemistry

    A substance (CD) decomposes into C and D At the temperature of the experiment, 15.0% of CD is decomposed when equilibrium is established. a) if the initial concentration of CD is 0.200mol/L, what are the equilibrium concentrations of CD, C and D? I got

    asked by Danielle on April 5, 2012
  93. chemistry

    For the following reaction Co(g)+H2o(g)=Co2(g)+H2(g) If the initial concentrations of Co and H2o are 1.00 mol in a 50 L vessel, what is the number of mole of each species at equilibrium, if the equilibrium constant Kc= 0.85 at 1000 C? please can any one

    asked by b.k on October 20, 2016
  94. Chemistry

    At 1473K the equilibrium constant for the reaction H2(g) + Cl2(g) 2HCl(g) Kc = 2.5*10^4. What would be the equilibrium concentration of HCL if the initial concentrations of H2 and Cl2 were 0.1840M and 0.1918M. I got 29.7 but was told it was wrong

    asked by Jude on March 13, 2011
  95. chemistry

    A catalyst alters the rate of a reaction by a. changing the products in the reaction. b. increasing the activation for the reaction. c. always providing a surface on which the molecules react. d. providing an alternate pathway for the reaction. e.

    asked by bob on February 25, 2012
  96. chemistry

    For the reaction, 2 XO + O2 = 2 X02, some data obtained from measurement of the initial rate of reaction at varying concentrations are given below. run # [XO] [O2] rate, mol L-l s-l 1 0.010 0.010 2.5 2 0.010 0.020 5.0 3 0.030 0.020 45.0 The rate law is

    asked by steve on February 18, 2012
  97. chemistry

    A first order reaction and a separate second order reaction both have the same rate of reaction. What is the effect on the rate of reaction for each reaction if the concentrations of reactants in both reactions are halved?

    asked by michael on August 30, 2014
  98. Chemistry

    For the reaction, 2 XO + O2 = 2 X02, some data obtained from measurement of the initial rate of reaction at varying concentrations are given below. run # [XO] [O2] rate, mol L-ls-l 1 0.010 0.010 2.5 2 0.010 0.020 5.0 3 0.030 0.020 45.0 The rate law is

    asked by Hannah on February 20, 2012
  99. Chemistry

    The reaction of nitrogen dioxide with fluorine generates nitryl fluoride: 2NO2(g) + F2(g) --> 2NO2F(g) To determine the rate law for this reaction, a chemist performed several initial-rate experiments using different initial concentration, with the details

    asked by Lily on February 9, 2017
  100. Chemistry

    For the reaction, 2 XO + O2 = 2 X02, some data obtained from measurement of the initial rate of reaction at varying concentrations are given below. run # [XO] [O2] rate,mol L-l s-1 1 0.010 0.010 2.5 2 0.010 0.020 5.0 3 0.030 0.020 45.0 The rate law is

    asked by Kay on February 21, 2012