A reaction 2A → P has a second-order rate law with kf = 1.44 dm3 mol-1 s -1 . Calculate the time required for the concentration of A to change from 0.460 mol dm-3 to 0.046 mol dm-3 .
A reaction 2A → P has a second-order rate law with kf = 1.44 dm3 mol-1...
quantum chem
A reaction 2 A rightarrow P has a second-order rate law with k = 3. 50 x 10^-4 dm^3 mol^-1 s^-1. calculate the time required for the concentration of A to change from 0. 260 mol dm^-3 to 0.011 mol dm^-3
The second-order rate constant for the reaction below is 0.11
dm3 mol−1 s−1.
CH3COOC2H5(aq) +
OH−(aq) →
CH3CO2−(aq) +
CH3CH2OH(aq)
What are the concentrations after the following times when ethyl
acetate is added to sodium hydroxide so that the initial
concentrations are [NaOH] = 0.050 mol dm−3 and
[CH3COOC2H5] = 0.100 mol
dm−3?
(a) 10. s
CH3COOC2 Hs +OHPCH3 COz tCHsCteott iS o.jl Lmai.S shab is 6he concentraron OF ester curter los uhen ebhyl acebaute IS Cadsed 6oSodium hydroxide Ta...
1) The rate constant for the reaction 2 N,Os(9) = 4 NO (9) + O2(9) is reported in units of sl. What is the overall order of the reaction? 2) The rate law for a reaction was reported as rate=k[A] [B][C] with molar concentrations in moles per cubic decimetre and time in seconds. What are the units of k? 3) The rate constant for the pseudo first-order acid- catalysed hydrolysis of glucose is 4.07' 10-s. Calculate the half-life for the...
If the rate law for the reaction2A + 3B ? productsis first order in A and second order in B, then the rate law is rate = ________________.a. k [A] [B]b. k [A]2 [B]3c. k [A] [B]2d. k [A]2 [B]e. k [A]2 [B]2
3. The thermal decomposition of A, 2A + products is a second-order reaction. Given that the initial concentration of A is = 2.45 x 10-3 M and the intial rate of reaction is 2.05x10-6 M s-1, calculate the rate constant. Also calculate the rate of reaction after 90% of A has reacted.
Consider the dimerization 2A S A2, with forward rate constant kf and reverse rate constant kr. (a) Derive an expression for "in terms of the rate constants, [A], and the total concentration of dt protein, [A]o[A]+2[A2] (b) The equation you derived above can be used to show that k8kk,[A]cot T2 where T is a quantity with units of time that depends the data provided below, calculate the rate constants formation of hydrogen-bonded dimers of 2-pyridone: on k, ki, and [A]ot....
b. The rate law for the reaction (2A+B+C) is -ra=KACA CB, with ka=25 (dm /mol) /s. What are kB and kc?
Calculate the rate coefficient (mol-1 dms-2) for the following reaction: A+B → Products Experiment [A] (mol dm-3) 0.273 0.273 0.819 [B] (mol dm3) 0.763 1.526 0.763 Initial Rate(mol dm-3 s) 2.83 2.83 25.47 37.97 0.278 13.2 42.0
1. Derive the second order rate law for the reaction 2 A →P, and an expression for its half life, t 1/2, in terms of the initial concentration of A. State your assumptions and show each step. [See Atkins 10th ed, 20B2; Atkins 11th ed, 17B2]
9. The reaction 2A → B is second order with a rate constant of 51.0/M·min at 24°C. (a) Starting with [A]0 = 9.50 × 10−3M, how long will it take for [A]t = 3.10 × 10−3M? ______ min (b) Calculate the half-life of the reaction. _______ min 10. The thermal decomposition of phosphine (PH3) into phosphorus and molecular hydrogen is a first-order reaction: 4PH3(g) → P4(g) + 6H2(g) The half-life of the reaction is 35.0 s at 680°C. a) Calculate...