1. Chemistry Help

    For the reaction 2HI(g) H2(g) + I2(g), Kc = 0.0198 at 721K. What is the HI concentration at 721K if [H2] = 0.120 M and [I2] = 0.0150 M? I'm getting .303 M but that's not one of the options.
  2. Chemistry Help

    For the reaction 2HI(g) H2(g) + I2(g), Kc = 0.0198 at 721K. What is the HI concentration at 721K if [H2] = 0.120 M and [I2] = 0.0150 M? I'm getting .303 M but that's not one of the options.
  3. Chemistry check my answer?

    Hi! is my answer correct? Consider the following chemical reaction: H2 (g) + I2 (g) 2HI (g) At equilibrium in a particular experiment, the concentrations of H2, I2, and HI were 0.15 M, 0.033 M, and 0.55 M, respectively. The value ofKeq for this reaction is
  4. chem12

    for the equilibrium 2HI(g)--- H2(g) + I2 k eq = 8.0 2.0 mol of HI are placed in a 4.0 L container, and the system is allowed to reach equilibrium. Calculate the equilibrium concentration of all three gases. Inital 2HI 0.5mol/l H2 =0 I2=0 change 2HI= -2x
  5. chem 12

    for the equilibrium 2HI(g)--- H2(g) + I2 k eq = 8.0 2.0 mol of HI are placed in a 4.0 L container, and the system is allowed to reach equilibrium. Calculate the equilibrium concentration of all three gases. Inital 2HI 0.5mol/l H2 =0 I2=0 change 2HI= -2x
  6. chem12

    2HI(g)--H2(g) + I2(g) k eq= 8.0 2.0 mol of HI are placed in a 4.0L container, and the system is allowed to reach equilibrium. Calculate the equilibrium concentration of all three gases Initial 2HI=0.5 mol/L H2= 0 I2=0 change 2HI= -2x H2= x I2=x equilibrium
  7. chem12

    2HI(g)--H2(g) + I2(g) k eq= 8.0 2.0 mol of HI are placed in a 4.0L container, and the system is allowed to reach equilibrium. Calculate the equilibrium concentration of all three gases Initial 2HI=0.5 mol/L H2= 0 I2=0 change 2HI= -2x H2= x I2=x equilibrium
  8. Chemistry

    Consider the following reaction: H2(g) + I2(s) ---> 2HI(g) TriangleH = 51.9 kj (enthalpy) Calculate the standard enthalpies of reaction for the following reaction: 6HI(g) ---> 3H2(g) + 3I2(s) Thanks!
  9. Chemistry

    Even when a mechanism is consistent with the rate law , later experimentation may it to be incorrect or only one of several alternative. As an example, the reaction between hydrogen and iodine has the following rate law: rate=k[H]^3[I]2. The long accepted
  10. Chemistry

    For the following reaction, the partial pressures are listed in the table: Substance Equlibrium H2S 5.4 I2 1.2 HI 0.43 S 7 If the Kp of the reaction is 0.134, which direction would the reaction need to go to establish equilibrium? H2S(g) + I2(s) 2HI(g) +
  11. chemistry

    1.) At what temperature will the rate constant for the reaction H2 + I2 to 2HI have the value 5.2×10−3 M^{-1}s^{-1}? (Assume k=5.4 *10^{-4}M}{-1)s}^{-1} at 599 K and k=2.8 * 10^{-2}M}^{-1}s}^{-1} at 683 K.) 2.)For the first-order reaction N2O5 to 2NO2 +
  12. CHEM

    1.) At what temperature will the rate constant for the reaction H2 + I2 to 2HI have the value 5.2×10−3 M^{-1}s^{-1}? (Assume k=5.4 *10^{-4}M}{-1)s}^{-1} at 599 K and k=2.8 * 10^{-2}M}^{-1}s}^{-1} at 683 K.) 2.)For the first-order reaction N2O5 to 2NO2 +
  13. Chemistry

    8. For the reaction H2(g)+I2(g)„\2HI(g); [H2] = 0.95 M; [I2] = 0.78 M; [HI] = 0.27 M. Calculate the equilibrium constant K and describe the direction (forward or reverse) of the reaction. Will adding a catalyst to the reaction alter the direction of the
  14. chem

    Reaction H2 +I2 yields 2HI All three gases are initially at 0.1atm/ upon reaching equilibrium it is found that H2 pressure droped by 55% what is the equilibrium constant for this reaction.
  15. Chemistry

    Hello, I really don't understand how to find the grams of moles in some of these reactions. If someone could help I would appreciate it. 1) Balance the following chemical reaction and determine the number of moles of HI produced when 2.33 moles of H2(g)
  16. chemistry

    in a reversable reaction H2+I2=2HI,what will happen to the equilibrium if the volume is decrease?
  17. Chemistry Kinetics

    If I had the equation H2 + I2 --> 2HI could I write the rate of reaction as d[H2 + I2]/dt = k[H2]^x[I2]^y were x is the order of reaction with respect to x and y is just the order of reaction with respect to y thanks
  18. chemistry

    Considering the reaction i2 h2=2hi energy change =( tive) and give reasons how "HI" will be produced
  19. chemistry

    at some temperature, Keq=33 for the reaction H2 + I2 -> 2HI. If initially, [H2]= .0600 M and [I2]= .0300 M, what are all three equilibrium concentrations?
  20. Chemistry

    At some temperature, Keq = 33 for the reaction H2 + I2 „³ 2HI. If initially, [H2] = .0600 M and [I2] = .0300 M, what are all three equilibrium concentrations?
  21. Chemistry

    2HI(g)--> H2(g) + I2(g) The rate law for the decomposition of HI is r=k[HI]^2. The rate of the rxn was found experimentally to b 2.5 x 10^4 mol/L x s where the HI concentration was 0.0558 M. Are these values ready to plug in to the equation, or because
  22. Chemistry***

    A mixture containing 19.8 moles of H2 and 7.2 mole of I2 was allowed to reach equilibrium in a 5 L closed vessel at ToC according to the equation: H2 (g) + I2 (g) 2HI (g) At equilibrium, 14 moles of H2 was present. The equilibrium constant for this
  23. Chemistry

    Consider the following reaction: H2+I22HI A reaction mixture at equilibrium at 175 K contains P(H2)=0.958 atm, P(I2)=0.877 atm, and P(HI)=0.020 atm. A second reaction mixture, also at 175 K, contains P(H2)=P(I2)=0.616 atm, and P(HI)=0.106 atm. What will
  24. Chemistry

    This is a problem I got on my Mastering Chemistry homework: Consider the following reaction: H2(g)+I2(g)⇌2HI(g) A reaction mixture at equilibrium at 175 K contains PH2=0.958atm, PI2=0.877atm, and PHI=0.020atm. A second reaction mixture, also at 175 K,
  25. chemistry

    Which of the following reactions will be spontaneous at standard state? Not all the reactions are balanced, so make sure they are balanced first. The ΔG of formation data can be found in an appendix in your text book. You may select multiple answers. Any
  26. 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.
  27. CHEMISTRY> HELP QUICK! pls

    Calculate the reaction free energy of: H2(g) + I2(g) 2HI(g) when the concentrations are 0.026 mol L-1 (H2), 0.33 mol L-1 (I2), and 1.84 mol L-1 (HI), and the temperature is 700K. For this reaction Kc= 54 at 700 K. +11.6 kJ mol-1 0 kJ mol-1 -11.6 kJ mol-1
  28. Chem

    I stuck on this problem. Can you help me to solve it? A reaction mixture in a 3.67L flask at a certain temp. initially contains 0.763g H2 and 96.9g I2. At equilibrium, the flask contains 90.4g HI. Calculate the equilibrium constant(Kc) for the reaction at
  29. Chemistry

    A 5.00L reaction vessel is filled with 1.00mol of H2, 1.00mol of I2, and 2.50mol of HI. If equilibrium constant for the reaction is 129 at 500k, what are the equilibrium concentrations of all species? H2(g) + I2(g) 2HI(g) Kc = 129
  30. chemistry

    Based on the following chemical equation, answer the questions below. Show all your calculation The balanced chemical reaction of iodine with hydrogen sulfide is as follows: H2S(g)+I2(s)-----2HI(g) + S(s) (a) Based on the above chemically balanced
  31. Chemistry

    Based on the following chemical equation answer the question below show all your calculation The balanced chemical reaction of iodine with hydrogen sulfide h2s(g)+i2(s)-----2HI(g) + S(s) (a) Based on the above chemically balanced equation, how many grams
  32. Chemistry

    For the reaction H2(g) + I2(g) 2HI(g), Kc=54.9 at 699K. A system was charged with 2.50 moles of H2 ans 2.50 moles of I2 and 5.00 moles of HI initially in a 5.00 liter vessell. How many moles of H2 should there be present at equilibrium? (Answer my teacher
  33. Chemistry 12

    given the reacting system: H2 (G) + I2(G) ---> 2HI(g) Keq= 64 Equal moles of H2, I2, and HI are placed in a 1.0 L container. Use calculations to determine the direction the reaction will proceed in order to reach equilibirum
  34. chemistry

    What happens to the concentration of HI(g) when the total pressure on the equilibrium reaction 2HCl(g) + I2(s) 2HI(g) + Cl2(g) is increased (by compression)? 1. increases 2. Unable to determine 3. decreases 4. remains the same
  35. Chemistry 12

    given the reacting system: H2 (G) + I2(G) ---> 2HI(g) Keq= 64 Equal moles of H2, I2, and HI are placed in a 1.0 L container. Use calculations to determine the direction the reaction will proceed in order to reach equilibirum
  36. Chemistry

    For the reaction 2HI=H2+I2.one mole of HI is introduced into a vessel at constant temperature.calculate the no of moles of I2 when equilibrium is reached (Kc=0.0156) Plz help me and give complete solution
  37. AP Chem

    the activation energy for the reaction H2+I2 >>2HI is 167kJ/mol, and deltaE for the reaction is +28kJ/mol. What is the activation energy for the decompistion of HI?
  38. Chemistry

    The delta G^o for a reaction : h2 (g) + i2 (g) = 2HI(g) Is 2.6 kj/moles. In one experiment the initial pressures are P h2 = 4.26 atm, P i2 = 0.024 atm,
  39. Idontgetit

    The value of the equilibrium constant (Kp) as represented by the first chemical equation is 2.00 x 10-2 at 730 K. Calculate the value of the equilibrium constant (Kp) for the second equation at the same temperature. Express answer in scientific notation.
  40. chem

    Keq for the reaction 2HI H2 +I2 has a value of 1.85x 10^-2 at 425 degrees celsius. If 0.18 mol of HI is placed in a 2.0 L flask and allowed to come to equilibrium at this temperature. What will the equilibrium of [I2} be?
  41. Chemistry

    The following reaction has an equilibrium constant of 0.020 at a given temperature. 2HI(g) I2(g) + H2(g) If you have 1.00 mol HI(g) in a 0.750-L container initially, how many moles of HI(g) will be present when the system reaches equilibrium?
  42. Chemistry

    The equilibrium constant for the reaction H2 + I2 --> 2HI, is 54 at 425 degrees C. If the equilibrium mixture contains 0.030 M HI and 0.015 M I2, calculate the equilibrium concentration of H2.
  43. chem

    Hydrogen iodide can decompose into hydrogen and iodine gases. 2HI(g) mc026-1.jpg H2(g) + I2(g) K for the reaction is 0.016. If 0.148 atm of HI(g) is sealed in a flask, what is the pressure of each gas when equilibrium is established?
  44. Chemistry

    When 0.20 mol of hydrogen gas and 0.15 mol of iodine gas are heated at 723 K until equilibrium is established, the equilibrium mixture is found to contain 0.26 mol of hydrogen iodide. The equation for the reaction is as follows. H2(g) + I2(g) ↔ 2HI(g)
  45. 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?
  46. chemistry

    equilibrium pressure at 731 K for the reaction H2+I2-2HI initially the mixture contains 0.08592 each of H2 and I2 and 1.0atm.what is the pressure of HI at equilibrium?
  47. chemistry

    In equation He +Br2------>2HI why chemical rate of Br2 is taken as 1/2 . It's a reversible reaction. Please explain in detail. While H2 rate is taken as 1 why?
  48. Physical science

    9 mol HI(g)is sealed with H2(g)in an empty 2 dm container when equilibriup is reached by the reaction..H2(g)+I2(g)=2HI(g) at 130 C it found that there are 5 mol HI(g)in the equilibrium mixture.calculate the equilibriup constant
  49. Gr 12 chemistry

    Based on this reaction: H2(g) + I2(g)= 2HI(g) How many moles of iodine are necessary for form 0.530 moles of hydrogen iodine
  50. chemistry

    The decomposition of hydrogen iodide if the equation: 2HI (g)--> H2 (g) + I2 (g) The reaction is second order and has a constant rate equal to 1, 6X10^-3 L/mol * s at 700 degrees. If the initial HI concentration in a vessel is 3.4X10 ^-2m. How many minutes
  51. chemistry

    1. A three-step mechanism has been suggested for the formation of carbonyl chloride: Step 1: Cl2 ===> 2 Cl (fast equlibrium) Step 2: Cl + CO ===> COCl (fast equilibrium) Step 3: COCl + Cl2 ===> COCl2 + Cl (slow) What is the molecularity of the
  52. chemistry

    Hydrogen iodide decomposes according to the reaction 2HI(g)H2(g) + I2(g) A sealed 1.50 L container initially holds .00623 moles of H2, .00414 moles of I2, and .0244 moles of HI at 703K. When equilibrium constant is reached, the concentration of H2(g) is
  53. CHEMISTRY

    To what temperature would the reaction below need to be heated to have a rate constant of 8.474e-4 M-1s-1 if the rate constant was 2.7000e-4 M-1s-1 at 327.00°C and the activation energy was 166.000 kJ/mol? H2(g) + I2(g) ↔ 2HI(g) a. 609.24°C b.
  54. college chemistry

    When a sample of HI(g) (5.825 mol) is placed in 320.0 L reaction vessel at 702.0 K and allowed to come to equilibrium the mixture contains 1.052 mol of H2(g). What is the equilibrium concentration (mol/L) of HI(g)? 2HI(g) = H2(g)+I2(g)
  55. chemistry

    Calculate the value of the equilibrium constant (Kp) for the reaction displayed if the following equilibrium pressure data were measured at 25.00 °C: P(H2(g)) = 0.2282 atm, P(I2(g)) = 0.1646 atm, P(HI(g)) = 5.462 atm. H2(g)+I2(g) = 2HI(g)
  56. Chemistry

    When 0.59 mol I2(g) and 0.59 mol H2(g) are placed into a 1.0-L container at a given temperature, 0.30 mol H2(g) is found to be present after the reaction below reaches equilibrium. Calculate Kc at the given temperature. I2(g) + H2(g) 2HI(g)
  57. Chemistry

    The delta G^o for a reaction : h2 (g) + i2 (g) = 2HI(g) Is 2.6 kj/moles. In one experiment the initial pressures are P h2 = 4.26 atm, P i2 = 0.024 atm, P hi = 0.23 atm. Calculate delta G
  58. chemistry

    Can someone explain this to me? In the reaction: --> AgCl(s) In the reaction HC2h302 + H20
  59. Chem

    I have a question on this question would I forgo the sqaure root on this on because there is no sqaure except on the products side which is 2HI? I am lost because I set up ICE then got to: 54=(4X-0.09)^2/x*x Kc=[HI]^2/[x][x] At a particular temperature, Kc
  60. CHEMISTRY

    When doing an ICE Chart in Chemistry, when do you know whether the C is a negative or positive? I was told if the problem gives us reactant concentrations and no product concentration then the reaction goes forward and make the reactant lose and the
  61. chem

    hydgogen and iodine form HI(g)per the reaction H2(g)+I2=2HI(g). If 2 L of iodine gas at .5 atm and 295 K react with excess oxygen, how many liters of HI at 295K and 1 atm will form?
  62. chemistry

    At a certain temperature, the equilibrium constant, K, for this reaction is 53.3. H2(g)+I2(g)->2HI(g) At this temperature, the reactants were placed in a container to react. If the partial pressures of H2 and I2 were each 0.300 bar initially, what is the
  63. chemistry

    for the reaction H2+I2--2HI at a given temperature it was found that an equilibrium mixture in a 10mL container consisted of 8.0 mol of HI, 1.0 mol of H2 nd 1.0 mole of I2. what is the equilibrium constant at that temperature?
  64. Chem II - Equilibrium

    For the reaction at 430 degree C, H2 + I2 2HI Kc = 54.3. Initially 0.714 moles of H2 and 0.984 miles of I2 and 0.886 moles of HI are placed in a 2.40 L vessel. The equilibrium concentration of H2 and I2 are _____. Ok, I tried this by changing the moles to
  65. chemistry dont know how to do it

    dG for the formation of Hi(g) from its gaseous elements is -20.2 kj/mol at 500k. when the partial pressure of HI is 10 atm, and I2 0.001 atm, what must the partial pressure of hydrogen be at this temperature to reduce the magnitude of dG for the reaction
  66. chemistry

    dG for the formation of Hi(g) from its gaseous elements is -20.2 kj/mol at 500k. when the partial pressure of HI is 10 atm, and I2 0.001 atm, what must the partial pressure of hydrogen be at this temperature to reduce the magnitude of dG for the reaction
  67. thermodynamics

    dG for the formation of Hi(g) from its gaseous elements is -20.2 kj/mol at 500k. when the partial pressure of HI is 10 atm, and I2 0.001 atm, what must the partial pressure of hydrogen be at this temperature to reduce the magnitude of dG for the reaction
  68. Chemistry 2

    The equilibrium constant, Kc, for the following reaction is 1.54E-2 at 643 K. 2HI(g) H2(g) + I2(g) When a sufficiently large sample of HI(g) is introduced into an evacuated vessel at 643 K, the equilibrium concentration of I2(g) is found to be 0.351 M.
  69. Chemistry

    for the reaction of hydrogen with iodine H2(g) + I2(g) --> 2HI(g) relate the rate of disappearance of hydrogen gas to the rate of formation of hydrogen iodide. and my answer is: rate formation of HI= delta [HI]/delta t and the rate of reaction of I2 =
  70. Chemistry 2

    The equilibrium constant, Kc, for the following reaction is 1.54E-2 at 643 K. 2HI(g) H2(g) + I2(g) When a sufficiently large sample of HI(g) is introduced into an evacuated vessel at 643 K, the equilibrium concentration of I2(g) is found to be 0.351 M.
  71. chemistry

    Calculate Delta G for each reaction using Delta Gf values: answer kJ ...thank you a) H2(g)+I2(s)--->2HI(g) b) MnO2(s)+2CO(g)--->Mn(s)+2CO2(g) c) NH4Cl(s)--->NH3(g)+HCl(g) is this correct? a) H2(g)+I2(s)--->2HI(g) From tables: G HI = +1.3 kJ/mol G H2 = 0 G
  72. Chemistry

    Which of the following statements is true if HI is formed in the following reaction? H2(g) + I2(g) → 2HI(g) a. There are no collisions between the reactants in the reaction b. All of the collisions between reactants have enough energy to overcome
  73. Chemistry

    Which of the following statements is true if HI is formed in the following reaction? H2(g) + I2(g) → 2HI(g) a.There are no collisions between the reactants in the reaction. b. All of the collisions between reactants have enough energy to overcome the
  74. Chemistry

    At a certain temperature, the equilibrium constant, Kc, for this reaction is 53.3. H2(g)+I2(g) 2HI(g) Kc= 53.3 At this temperature, 0.300 mol of H2 and 0.300 mol of I2 were placed in a 1.00-L container to react. What concentration of HI is present at
  75. Chemistry!!! PLZ PLZ HELP!!

    Calculate the equilibrium amounts of each susbtance in the reaction below if an initial amount of 0.1 moles of H2 are brought together with an initial amount of 0.2 moles of I2 and then equilibrium is established at 900K. Kc at this temperature=70. H2 + I2
  76. chemistry

    At a certain temperature, the Equilibrium constant, Kc, for this reaction is 53.3. At this temperature, 0.500 mol of H2 and 0.500 mol of I2 were placed in a 1.00-L container to react. What concentration of HI is present at Equilibrium? equation: H2 + I2 =
  77. Chemistry

    Given the reaction 2HI (aq) + CaCO3(s) = CaI2(aq)+CO2(g)+H2O(l) What volume of of CO2 can be produced from 255mL of 3.0M HI and 75.2g of CaCO3 at STP? 75.2g CaCO3/100.09g/mol CaCO3 =.751mol CaCO3 (3M)(.255L)=.765 mol HI
  78. Chemistry

    1. The reaction, CO(CH2COOH)2 CO(CH3)2 + 2CO2, follows first-order kinetics and has an activation energy of 96.6 kJ mol-1. At 293 K, k = 0.133 s-1. Find the temperature (in K) at which half-live will be 0.00692 min? Round your answer to 3 significant
  79. Chemistry

    At a certain temperature, the equilibrium constant, Kc, for this reaction is 53.3. H2(g)+I2(g) 2HI(g) At this temperature, 0.300 mol of H2 and 0.300 mol of I2 were placed in a 1.00-L container to react. What concentration of HI is present at equilibrium?
  80. Chem II

    For the reaction at 430 degree C, H2 + I2 2HI. Kc = 54.3. Initially 0.714 moles of H2 and 0.984 moles of I2 and 0.886 molrd of HI are placed in a 2.40 L vessel. The equilibriuim concentration of H2 and I2 is _____. This is what I did. I changed all the
  81. Chemistry

    Given the equilibrium reaction N2(g) + 3 H2(g) 2NH3(g) + heat, an increase in temperature will: a) Increase the value of K b) Decrease the value of K c) Increase or decrease the value of K depending upon the concentration of reactants d) Will have no
  82. chemistry(check my work)

    Calculate the value of the equilibrium constant (Kp) for the reaction displayed if the following equilibrium pressure data were measured at 25.00 °C: P(H2(g)) = 0.2282 atm, P(I2(g)) = 0.1646 atm, P(HI(g)) = 5.462 atm. H2(g)+I2(g) = 2HI(g) is it like this,
  83. Chemistry

    At 400°C the reaction H2+I22HI has an equilibrium constant Kp value of 55.5. A mixture of 1 mole of H2 and 1 mole of I2 is placed in a flask and heated to 400°C. Calculate the mole fraction of HI in the mixture of gases when equilibrium reached.
  84. Chemistry

    How do I determine the value of the reaction 2HI(g) + 2.4 kcal --> H2(g) + i2(g) delta H = a) 2.4 kcal b) -2.4 kcal c) 0.00024 kcal d) -0.00024 kcal
  85. Chemistry

    How do I determine the value of the reaction 2HI(g) + 2.4 kcal --> H2(g) + i2(g) delta H = a) 2.4 kcal b) -2.4 kcal c) 0.00024 kcal d) -0.00024 kcal
  86. Chemistry

    H2S+Is >2HI+S
  87. chemistry

    1)At room temperature (20 degree C), milk turns sour in about 64 hours. In a refrigerator at 3 degree C, milk can be stored three times as long before it sours. How long should it take milk to sour at 40 degree C (activation energy =44kj/mol)? 2)At what
  88. Chemistry

    In a reaction in which A + B yields AB, the reaction is referred to as a _________. A. decomposition reaction B. double-replacement reaction C. combustion reaction D. composition reaction
  89. Organic Chemistry

    The Diels-Alder reaction is classified as a: A. polar reaction B. radical reaction C. substitution reaction D. pericyclic reaction E. rearrangement reaction
  90. Chemistry...HELP!!!!

    In a reaction in which A + B yields AB, the reaction is referred to as a _________. A. decomposition reaction B. double-replacement reaction C. combustion reaction D. composition reaction i think is a
  91. Chemistry Question

    The reaction of quicklime (CaO) with sulfur dioxide (SO2) is an important reaction for reducing SO2 emissions from coal-fired power plants: CaO(s) + SO2(g) → CaSO3(s) This reaction is an example of: A. a precipitation reaction B. an electrolysis reaction
  92. Chemistry

    For the reaction: H2(g) + I2(g) 2HI(g) , Kc = 12.3 at some temperature T. If [H2] = [I2] = [HI] = 3.21 x 10-3 M at this temperature, which one of the following statements is true? 1. ) Not enough information is given to answer the question. 2. ) The
  93. chemistry

    H2(g) + I2(g) *) 2HI(g) + heat Which response includes all the following that will shift the equilibrium to the left, and no others?
  94. chemistry

    H2(g) + I2(g) *) 2HI(g) + heat Which response includes all the following that will shift the equilibrium to the left, and no others?
  95. Chemistry

    What is the percent yield of the reaction below if 2.23g of hydrogen gas react with 55.3 g of iodine to produce 43.1g of HI. use the equation below: H2+I2=2HI the answers: a) 21.8 b) 77.3 c) 33.7 d) 87.1 I started by trying to find the limiting reagent. I
  96. science

    what type of reaction is this 2h2o2 (l) -> 2h2o(l)+ o2 (g) a.single replacement reaction. b.decomposition reaction. c.acid-base neutralization reaction. d.no reaction.
  97. chemistry

    Choose all of the following statements about the equilibrium constant K that are true: (a) If the K value for a reaction is > 1 then Go must be negative for this reaction (b) A large value for K implies there is a strong driver for the reaction to proceed
  98. chemistry

    What kind of reaction occurs when a molecule of glucose reacts with oxygen to give carbon dioxide and water? a.exothermic reaction b.endothermic reaction c.synthesis reaction d.irreversible reaction
  99. chemistry

    Which statement describes a chemical reaction at equilibrium? A. The forward reaction happens slightly faster than the reverse reaction. B. The reaction has stopped because all reactants have been used up. C. The forward reaction happens at the same rate
  100. chemistry

    H2+I2->2HI If 3 moles of H2, I2, and HI are in a 3L flask, what will be the equilibrium amount of each. Kc=5 The answer is H2= I2= .71M, HI= 1.584M(given by teacher) Just need to know how to do the work.