A certain first-order reaction has a rate constant of 2.70 x 10-2s¹ at 20 °C. What is the value of k at 70 °C if E-80.5 kJ/mol ?Express your answer In reciprocal seconds to three significant figures.11k=

Answered: Image /qna-images/answer/7b7872b5-5c47-411c-8887-db860356f116.jpg

A certain first-order reaction has a rate constant of 2.70 x 10-s¹ at 20°C. What is the value of k at 70 °C i E, = 80.5 kJ/mol ? Express your answer In reciprocal seconds to three significant figures. kw

A certain first-order reaction has a rate constant of 2.70 x 10-s¹ at 20°C. What is the value of k at 70 °C i E, = 80.5 kJ/mol ? Express your answer In reciprocal seconds to three significant figures. kw

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter30: Kinetic Methods Of Analysis

Section: Chapter Questions

Problem 30.7QAP

See similar textbooks

Related questions

Q: The Kc of the reaction below is 3.149x10 -4 at 351.0K. What is the Kp value for this reaction. The…

A: The relationship between Kp and Kc is => Kp = Kc (RT)Δn where, T is the temperature in kelvin,…

Q: In which of the following reactions/processes is entropy increasing? C2H6O (1)→ C2H60 (g) 4Fe(s) +…

Q: compute for the heat gained, specific heat of metal material: aluminum mass of metal: 8.8399g…

A: Given : Mass of metal = 8.8399g Initial temp of metal : 100 °C Mass of water = 18.4120 g Initial…

Q: How many moles of glucose are present in 400 mL of a 2-M glucose solution? a None of these b 8…

A: Molarity is defined as number of moles of solute divided by volume of solution in liter. Hence mole…

Q: Which of the following statements is correct, based your Gaussian16 calculations of a water molecule…

A: b is correct as both are double zeta basis sets so number of basis functions remains constant.

Q: A researcher studying the nutritional value of a new candy places a 3.30 g sample of the candy…

A: Given => Mass of candy sample = 3.30 g Temperature increase = ∆T = 2.02 °C…

Q: After calculating the PH of a .66M solution of NH3 Ki for NH3 = 1.9x10-5 and PH is 11.5 Question:…

A: The first step is to write the equation for the reaction between NH3 and NH4Cl: NH3 + H2O ⇌ NH4+ +…

Q: Show the reactions using the names of the molecules a) An addition reaction involving HBr that…

A: Markovnikov's rule or Markownikoff's rule, is a principle in organic chemistry that states that when…

Q: Write the correct IUPAC name for the following structure A

A: Parent hydrocarbon ----> Cyclopentane Substituents ------> Chloro, Ethyl and Methyl

Q: An acid HX is 34% dissociated in water. If the equilibrium concentration of HX is 1.23 M, calculate…

Q: Draw a structural diagram (of any kind) of the following: 3-ethyl-1,1,2,2-tetramethylcyclopentane

A: IUPAC nomenclature used for the systematic naming of the organic molecules. According to IUPAC…

Q: For the decomposition of gaseous dinitrogen pentaoxide, 2 N₂O5(g) 4 NO₂(g) + O₂(g) the rate constant…

Q: Draw a titration curve for a strong acid titrated with a strong base. On the same axes draw a…

A: Answer: When acid is titrated against base then pH of the solution rises as acid gets neutralized…

Q: The decomposition of ammonia on hot tungsten is described by the following kinetic data:

A: Given: Pressure-Time graph for decomposition of ammonia on hot tungsten. To determine: The rate…

Q: Draw a weak acid- strong base titration curve for a diprotic acid and label the following point a.…

A: The question is based on the concept of titrations. we need to plot pH diagram of a dipotic acid.

Q: Determine the Bragg condition required to examine the following materials. Complete the following…

A: We need to determine the Bragg condition to examine the given materials by completing the table.…

Q: QUESTION 6 One mole of neon atoms has a mass o 22.99 g 14.01 g 20.18 g 10.01 g 6.02 x 1023 g Click…

Q: 5. Four hoh materials used to make pots for cooking are cooper, stainless steel, aluminum, and…

A: Given data : Name of compounds Specific heats copper 0.385…

Q: What is the pH of a 0.785M solution of formic acid,HCHO2?The Ka of HCHO2 is 1.77x10-4?

Q: 1. Phenol, C6H5OH, is a weak organic acid (MW=94 g/mol). C6H5OH(aq) + H₂O(1) CeHsO (aq) + H3O*(aq)…

A: Answer: When a weak electrolyte is dissolved in water it partially ionizes and an equilibrium…

Q: A weak acid/conjugate base buffer has a pH smaller than the pKa of the acid. How does this affect…

A: A buffer is a solution which resist any change in pH on adding a small amount of acid or base . it…

Q: Calculate the pH when 10.0 mL of 0.150 M KOH is mixed with 20.0 mL of 0.300 M HBrO (Ka = 2.5 × 10⁻⁹)

A: Given Molarity of KOH = 0.150 M Volume of KOH = 10 ml Molarity of HBrO = 0.300 M Volume of HBrO = 20…

Q: Use the drop-down selection boxes to rank the IR absorptions of the coloured bonds in terms of…

A: IR spectroscopy is mainly used for identification of functional group present in the molecules. Each…

Q: Draw the products of the reaction shown below. Ignore inorganic byproducts. NO₂ cat. H₂SO4 HNO, (1…

Q: Use the References to access important values if needed for this question. A solution contains…

A: The question is based on the concept of solubility product principle. It that states that when a…

Q: A solution has a [H 3O +] of 1.930x 10 -10 M. What is the pOH?

Q: If an average carbon atom weighs 12.01 amu, how many carbon atoms are contained in 6.36 x 10¹3 amu…

A: We have been asked to calculate number of carbon atoms in 6.36 × 1013 amu of carbon and mass of…

Q: Draw the mechanism: Nitrile R-C=N 1) LAH 2) H₂O amine H I R-C-NH₂ H

A: We know addition of hydrogen is known as reduction .

Q: Clearly draw the reaction scheme for the microwave assisted reaction shown below. Label the…

Q: A 43.8 ml sample of a 0.200 M solution of NaCN is titrated by 0.130 M HCl. K, for CN is 2.0 x 105.…

A: Note: Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: Why isn't the mass of potassium sulfate used In any of the calculations?

A: Why isn't the mass of potassium sulfate used In any of the calculations Solution - given equation -…

Q: DI. Sulfuric acid reacts with CuO(s) to form soluble CuSO4(aq). El. Zinc displaces H*(aq) from…

A: D1. The chemical reaction for CuO (s) with sulfuric acid, H2SO4 (aq) is, CuO (s) + H2SO4 (aq) =>…

Q: A 25.0 mL solution of HNO3 is neutralized with 15.7 mL of 0.250 M Ba(OH)2. What is the concentration…

A: In the given question, we have to find the concentration of HNO3 solution.

Q: Ca. □b. OC ○. 화 d. No reaction < FeCl3 ?

A: Monosubstituted benzene undergoes electrophilic substitution either at ortho/para position or at…

Q: A solution is prepared at 25 °C that is initially 0.20M in chloroacetic acid (HCH₂CICO₂), a weak…

A: Given, [HCH2ClCO2] = 0.20 M [NaCH2ClCO2] = 0.34 M Ka = 1.3 × 10-3 pH of the solution = ?

Q: 1. Nitrile hydrolysis to prepare carboxylic acids. a. What gas is given off in this reaction? How…

A: The gas produced during the hydrolysis of nitriles is ammonia. Chemically it can easily be…

Q: (True or False): You can determine the identities of substances in a mixture by examining the peaks…

A: 1. True because Let us suppose we have mixture of aldehyde and alcohol then by taking IR we get…

Q: What is the concentration in percent by volume of a solution containing 50.0mL of diethyl…

A: To calculate the percent by volume concentration of diethyl ether (C2H5)2O in the given solution, we…

Q: Give the IUPAC name for each compound, including the R, S designation for each stereogenic center. H…

Q: Bicyclo[2.2.0]hexane -> cyclohexane-1,4-dione || II ? => =0

A: Given that, a reaction scheme is shown below We have to carry out the following synthesis.

Q: Avogadro's number is the number of grams in a mole. O True O False

A: Avogadro's number is a fundamental concept in chemistry and physics that is used to describe the…

Q: 7. Given the following reaction graph for reactant SO₂Cl2. a. What is the reaction order for SO₂Cl2…

A: Note: As per the guidelines first 3 parts of the question has been done. For the remaining parts…

Q: Calculate the volume of 0.1 M HCl needed to react with 50 mL of 0.89 M NaOH.

A: We have find out the answer.

Q: Please explain clearly the shielding and deshielding effect on the protons on the benzene ring and…

A: 1H NMR (proton nuclear magnetic resonance) spectroscopy is a technique used to study the chemical…

Q: Refer to the following unbalanced equation: CoH14 + O2 ---> CO2 + H2O What mass of oxygen (O₂) is…

A: From balance reaction 2 mole of C6H14 react with 19 mole of oxygen molecules

Q: a. Using the average atomic mass of carbon, calculate the mass (in amu) of 137 carbon atoms. amu b.…

A: Answering only the first 3 subparts as per guidelines for further assistance please post the…

Q: If there are two weak acids, one with a pK, of 4 and another with a pK, of 9, an equimolar solution…

A: When an acid is dissolved in water, it can dissociate into its conjugate base and a hydrogen ion.…

Q: Given the following unbalanced reaction: Pb4+ (aq) + MnO2 (s) + OH-(aq) = Pb²+ (aq) + MnO4 (aq) +…

Q: Draw neatly, the full mechanism of the haloform reaction performed in this experiment. In the…

A: The question is based on the concept of organic reactions. We have to write the mechanism of the…

Q: Magnesium pieces (0.49 g) react in dilute acidic solution (141 mL) as follows: Mg(s) + 2 HCl(aq) →→…

A: Mass of magnesium reacted = 0.49 g Volume of dil HCl = 141 mL Change in temperature= 22.2o C to…

Question

A certain first-order reaction has a rate constant of 2.70 x 10-2s¹ at 20 °C. What is the value of k at 70 °C if E-80.5 kJ/mol ?
Express your answer In reciprocal seconds to three significant figures.
11
k=

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

The decomposition of N2O5 in CCl4 is a first-order reaction. If 2.56 mg of N2O5 is present initially and 2.50 mg is present after 4.26 minutes at 55 C, what is the value of the rate constant, k?
The decomposition of azomethane, (CH3)2N2, to nitrogen and ethane gases is a first-order reaction, (CH3)2N2(g)N2(g)+C2H6(g). At a certain temperature, a 29-mg sample of azomethane is reduced to 12 mg in 1.4 s. (a) What is the rate constant k for the decomposition at that temperature? (b) What is the half-life of the decomposition? (c) How long will it take to decompose 78% of the azomethane?
The catalyzed decomposition of hydrogen peroxide is first-order in [H2O2]. It was found that the concentration of H2O2 decreased from 0.24 M to 0.060 M over a period of 282 minutes. What is the half-life of H2O2? What is the rate constant for this reaction? What is the initial rate of decomposition at the beginning of this experiment (when [H2O2] = 0.24 M)?
11.64 HBr is oxidized in the following reaction: 4 HBr(g) + O2(g) —• 2 H2O(g) + 2 Br,(g) A proposed mechanism is HBr + O2 -* HOOBr (slow) HOOBr + HBr — 2 HOBr (fast) HOBr + HBr — H2O + Bn (fast) Show that this mechanism can account for the correct stoichiometry. Identify all intermediates in this mechanism. What is the molecularity of each elementary’ step? Write the rate expression for each elementary' step. Identify the rate-determining step.
The initial concentration of the reactant in a tirst-order reaction A —» products is 0.64 rnol/L and the half-life is 30.0 s. Calculate the concentration of the reactant exactly 60 s after initiation of the reaction. How long would it take for the concentration of the reactant to drop to one-eighth its initial value? How long would it take for the concentration of the reactant to drop to 0.040 mol/L?
The following rate constants were obtained in an experiment in which the decomposition of gaseous N2O; was studied as a function of temperature. The products were NO, and NO,. Temperature (K) 3.5 x 10_i 298 2.2 x 10"4 308 6.8 X IO-4 318 3.1 x 10 1 328 Determine Etfor this reaction in kj/mol.
Methyl acetate, CH3COOCH3, reacts in basic solution to give acetate ion, CH3COO, and methanol, CH3OH. CH3COOCH3(aq)+OH(aq)CH3COO(aq)+CH3OH(aq) The overall order of the reaction was determined by starting with methyl acetate and hydroxide ion at the same concentrations, so [CH3COOCH3] = [OH] = x. Then Rate=k[CH3COOCH3]m[OH]n=kxm+n Determine the overall order and the value of the rate constant by plotting the following data assuming first- and then second-order kinetics. Time (min) [CH3COOCH3] (mol/L) 0.00 0.01000 3.00 0.00740 4.00 0.00683 5.00 0.00634 10.00 0.00463 20.00 0.00304 30.00 0.00224
The decomposition of iodoethane in the gas phase proceeds according to the following equation: C2H5I(g)C2H4(g)+HI(g) At 660. K, k = 7.2 104 sl; at 720. K, k = 1.7 102 sl. What is the value of the rate constant for this first-order decomposition at 325C? If the initial pressure of iodoethane is 894 torr at 245C, what is the pressure of iodoethane after three half-lives?