State the hydrolysis using bond energies

Assignment Help Chemistry

Reference no: EM13162874

Heats of reaction calculated from bond energies and from heats of formation are often, but not always, close to each other. a. Industrial ethanol (CH3CH2OH) is produced by a catalytic reaction of ethylene (CH2=CH2) with water at high pressures and temperatures. Calculate ?Hºrxn for this gas-phase hydration of ethylene to ethanol, using bond energies and then using heats of formation. b. Ethylene glycol is produced b the catalytic oxidation of ethylene to ethylene oxide, which then reacts with water to form ethylene glycol: image from custom entry tool + H2O (l) = HOCH2CH2OH(l) The ?Hºrxn for this hydrolysis step, based on heats of formation, is -97 kJ/mol. Calculate ?Hºrxn for the hydrolysis using bond energies. c. Why are the two values relatively close for the hydration in part "a" but not close for the hydrolysis in part "b"?

Reference no: EM13162874

Questions Cloud

Compute the energy produce liquid methanol : Calculate the energy produced when 15 grams of liquid methanol (CH3OH) is completely burnt in air to produce carbon dioxide gas

Explain how knowledge of the evaluator : Explain how knowledge of the evaluator (future employer) should influence a person’s writing of the resume or cover letter.

Why is it possible to separate the product : Why is it possible to separate the product (6-ethoxycarbonyl-3,5-diphenyl-2-cyclohexenone) from sodium hydroxide using acetone?

What is the maximum amount of silver : What is the maximum amount of silver (in grams) that can be plated out of 4.8 {rm L} of an {rm{AgNO}}_3 solution containing 3.6 % {rm Ag} by mass? Assume that the density of the solution is 1.01.

State the hydrolysis using bond energies : Calculate ?Hºrxn for the hydrolysis using bond energies. c. Why are the two values relatively close for the hydration in part "a" but not close for the hydrolysis in part "b"?

Write a method that returns index of the smallest element : Write a method that returns the index of the smallest element in an array of integers

Calculate the mass percent of a solution : Calculate the mass percent of a solution that is prepared by adding 40.0 g of rm NaOH to 408 g of {rm H_2O}.

State what is the percent ionization : What is the percent ionization of a 0.186 M solution of this acid? A certain weak base has a Kb of 7.50 × 10-7. What concentration of this base will produce a pH of 10.06?

Compute and flote 4 average temperature profiles : Generate by measdata.m an array A withsize (365,24), containing temperature measurements for an entire year [1 January,..., 31 December], 24 hours a day [00.00h,...,23.00h].

User Account

All Pages