Consider the general reaction
and the following average rate data over some time period ∆t:
Determine a set of possible coefficients to balance this general reaction.
Want to see the full answer?
Check out a sample textbook solutionChapter 11 Solutions
Chemistry: An Atoms First Approach
- The Raschig reaction produces the industrially important reducing agent hydrazine, N2H4, from ammonia, NH3, and hypochlorite ion, OCl−, in basic aqueous solution. A proposed mechanism is Step 1: Step 2: Step 3: What is the overall stoichiometric equation? Which step is rate-limiting? What reaction intermediates are involved? What rate law is predicted by this mechanism?arrow_forward. Account for the increase in reaction rate brought about by a catalyst.arrow_forwardFor the reaction of crystal violet with NaOH(aq), the measured rate of reaction is 1.27 106 mol L1 s1 when the concentration of crystal violet cation is 4.13 105 mol/L. (a) Estimate how long it will take for the concentration of crystal violet to drop from 4.30 105 mol/L to 3.96 105 mol/L. (b) Could you use the same method to make an accurate estimate of how long it would take for the concentration of crystal violet to drop from 4.30 105 mol/L to 0.43 105 mol/L? Explain why or why not.arrow_forward
- The following statements relate to the reaction for the formation of HI: H2(g) + I2(g) 2 HI(g)Rate = k[H2][I2] Determine which of the following statements are true. If a statement is false, indicate why it is incorrect. (a) The reaction must occur in a single step. (b) This is a second-order reaction overall. (c) Raising the temperature will cause the value of k to decrease. (d) Raising the temperature lowers the activation energy for this reaction. (e) If the concentrations of both reactants are doubled, the rate will double. (f) Adding a catalyst in the reaction will cause the initial rate to increase.arrow_forwardDefine these terms: (a) unimolecular reaction (b) bimolecular reaction (c) elementary reaction (d) overall reactionarrow_forwardCobra venom helps the snake secure food by binding to acetylcholine receptors on the diaphragm of a bite victim, leading to the loss of function of the diaphragm muscle tissue and eventually death. In order to develop more potent antivenins, scientists have studied what happens to the toxin once it has bound the acetylcholine receptors. They have found that the toxin is released from the receptor in a process that can be described by the rate law Rate = k [acetylcholine receptortoxin complex] If the activation energy of this reaction at 37.0C is 26.2 kJ/mol and A = 0.850 s1. what is the rate of reaction if you have a 0.200M solution of receptor-toxin complex at 37.0C?arrow_forward
- Consider the following statements: In general, the rate of a chemical reaction increases a bit at first because it takes a while for the reaction to get warmed up. After that, however, the rate of the reaction decreases because its rate is dependent on the concentrations of the reactants, and these are decreasing. Indicate everything that is correct in these statements, and indicate everything that is incorrect. Correct the incorrect statements and explain.arrow_forward(Section 11-5) A rule of thumb is that for a typical reaction, if concentrations are unchanged, a 10-K rise in temperature increases the reaction rate by two to four times. Use an average increase of three times to answer the questions below. (a) What is the approximate activation energy of a typical chemical reaction at 298 K? (b) If a catalyst increases a chemical reactions rate by providing a mechanism that has a lower activation energy, then what change do you expect a 10-K increase in temperature to make in the rate of a reaction whose uncatalyzed activation energy of 75 kJ/mol has been lowered to one half this value (at 298 K) by addition of a catalyst?arrow_forwardA reaction is believed to occur by the following mechanism: Stepl: 2AI (Fast equilibrium) Step 2: I + B C (Slow) Overall: 2 A + B C What experimentally determined rate law would lead to this mechanism? (a) Rate = k[A][B] (b) Rate = k[A]2[B] (c) Rate = k[A]2 (d) Rate = k[I][B]arrow_forward
- T = Chemical reactions produce one or more product substances from one or more reactant substances. If x molecules of reactant X combine with y molecules of reactant Y to produce z molecules of product Z, we write xX+yY→ ZZ. The reaction rater is the rate of change of concentration of 1 dz 1 dX one of the products over time; for this example, r = 1 dy z dt x dt dY dt dX dt Nitrogen gas N₂ and hydrogen gas H₂ combine to produce ammonia NH3 according to dY dX dt 1N₂ + 3H₂ → 2NH3. Find r, and if ammonia is being produced at a rate of 5 moles dt per liter per hour. = esc T M Question Help: Message instructor Submit Question K 8366-SUMMER2023 / June 5- June 11 / Practice: Derivative mol Lh mol Lh → # C - $ y dt M % O Ollarrow_forwardA)For a certain reaction, Kc=2.70×10−9 and kf= 5.97×104 M−2⋅s−1M−2 ⋅ s−1 . Calculate the value of the reverse rate constant, kr Express your answer numerically in inverse seconds. B) For a different reaction, Kc=1.43×104, kf=6.87×105s−1 and kr= 47.9 s−1. Adding a catalyst increases the forward rate constant to 1.31×107 s−1. What is the new value of the reverse reaction constant, kr, after adding catalyst?arrow_forwardA general reaction written as A + 2B → C + 2D is studied and yields the following data: [A]0 [B]0 Initial Δ[C]/Δt 0.150 M 0.150 M 8.00 × 10–3 mol/L·s 0.150 M 0.300 M 1.60 × 10–2 mol/L·s 0.300 M 0.150 M 3.20 × 10–2 mol/L·s Determine the initial rate of C production (Δ[C]/Δt) if [A] = 0.200 M and [B] = 0.500 M. arrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStaxChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning