Consider the table of data collected for the reaction A → Products. Determine the magnitude (value) of the reaction rate constant by graphing the data appropriately. Time (s) 0.00 1.50 3.00 4.50 6.00 7.50 9.00 Problem Table [A] (M) 0.500 0.420 0.335 0.250 0.170 0.085 0.003
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- List at least four experimentally determined parameters that you, an experimenter, can define when exploring the hydrolysis of ethyl benzoate by aqueous sodium hydroxide.(a) What are the units usually used to express the rates ofreactions occurring in solution? (b) As the temperatureincreases, does the reaction rate increase or decrease?(c) As a reaction proceeds, does the instantaneous reactionrate increase or decrease?(a) If Qc > Kc, how must the reaction proceed to reachequilibrium? (b) At the start of a certain reaction, onlyreactants are present; no products have been formed.What is the value of Qc at this point in the reaction?
- Consider the reaction: NO(g) + C₂H₂(g) → HCN(g) + CO(g) + H(g), is The Arrhenius expression for the reaction is k(T) = 8.97 x 10-¹2 cm³ molec-¹ s¹ exp{-218 kJ mol-¹/RT} over the temperature range 1100 - 1500 K. Using transition state theory, calculate AH* and AS* for this reaction at 1300 K.The efficiency of a particular catalyst is highly dependent on its zirconium content. The starting material for this preparation is received in batches that assay between 68% and 84% ZrCl4. Routine analysis based on precipitation of AgCl is feasible, if having been established that there are no sources of chloride ion other than the ZrCl4 in the sample. (a) What sample mass should be taken to ensure an AgCl precipitate that weighs at least 0.400g? (b) If this sample mass is used, what is the maximum mass of AgCl that can be expected in this analysis? (c) To simplify calculations, what sample mass should be taken to have the percentage of ZrCl4 exceed the mass of AgCl produced by a factor of 100?When 0, 1 12 mol of NO and 0, 1 12 mol of Br2 are placed in a 1 ,00 dm3 reaction vessel and sealed, the mixture is heated to 350K and the following equilibrium is established:2 NO (g) + Br2 (g) 2 NOBr (g)If the equilibrium concentration of nitrosyl bromide (NOBr) is 0,0824 mol.dm-3 , what is the value of equilibrium constant(Kc) at 350K?
- O Ni(H₂O)2+ (aq) + 3SCN- (aq) = Ni(SCN); (aq) + 6H₂0(1) (a) Write the Kc expression for this equilibrium. (b) Would there be a shift to the right or to the left if KSCN solution was added to a solution containing this equilibrium? Explain your answer.7) For the reaction CO(g) + 3 H2(g) = H2O(g) + CH4(g), Kc = 190 at 1000 K. If a vessel is filled with these gases such that the initial concentrations are [CO] = 0.036 M, [H2] = 0.045, [H2O] = 0.020, 7) %3D %3D %3D and [CH4] = 0.031, in which direction will a reaction occur and why? A) it is at equilibrium because Q = 190 B) toward products because Q = 4.1 C) toward reactants because Q = 0.24 D) toward products because Q = 0.38 %3D %3D %3D %3D E) toward reactants because Q = 61 %3DPart A For a certain reaction, K = 6.81x10-6 and kf=4.02x105 M2.g¹. Calculate the value of the reverse rate constant, kr, given that the reverse reaction is of the same molecularity as the forward reaction. Express your answer with the appropriate units. Include explicit multiplication within units, for example to enter M2.s include (multiplication dot) between each measurement. ▸ View Available Hint(s) k₂ = Submit ▾ Part B for Part A For Partido for Part redo for Part A refor Part A keyboard shortcuts for Part A help for Part A kr = Value For a different reaction, Kc = 9.86x10³, k = 98.5s¹, and kr = 9.99x10-³ s¹. Adding a catalyst increases the forward rate constant to 4.20x104s1. What is the new value of the reverse reaction constant, kr, after adding catalyst? Express your answer with the appropriate units. Include explicit multiplication within units, for example to enter M-2.8-¹ include (multiplication dot) between each measurement. ► View Available Hint(s) Submit Units for Rart B…
- Create the Ksp expression for the dissolution of AgCl by dragging the elements and their charges, plus any exponents, to their appropriate positions.Consider the following elementary reaction: (CH;),CBr(aq) - (CH;)¸c"(aq) +Br (aq) Suppose we let k, stand for the rate constant of this reaction, and k_, stand for the rate constant of the reverse reaction. 1 Write an expression that gives the equilibrium concentration of Br in terms of k,, k 1' and the equilibrium concentrations of (CH,) CBr and (CH,)C". [Br] = 0How do I find the Reaction Quotient, E0cell and Ecell?