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A solution of ethyl acetate and sodium hydroxide was prepared at t=0 at 5*10-3 mol/L ethyl acetate and 8*10-3 mol/L of sodium hydroxide. After 400 second at 25 deg.c, 25ml of aliquot was found to neutralize 33.3ml of 5*10-3 mol/L of HCl.
a) What is the rate constant for the second order reaction and
b) At what time would you expect 20ml of hydrochloric acid to be required?
Consider a particle of mass, m, moving in a one dimensional system between x=a and x=b with the potential energy, V(x) = 1+(hbar squared/mx^2).
Write down the balanced chemical equation when Fe 3 O 4 reacted with carbon monoxide and calculate mass of carbon dioxide that will be produced in this reaction if 234 g carbon monoxide is reacted with excess Fe 3 O 4 ?
Amitriptyline is a tricyclic antidepressant that is also a weak monoprotic base. A clinical chemist wishes to extract this drug with chloroform from a blood sample for analysis
Describe at least 4 methods that could be used to attempt to separate the oil and water at home. Based on the four methods postulate which method would work better than the others.
Calculate the pH in the titration of 20.0mL of 0.100 M of acetic acid by sodium hydroxide after the addition to the acid solution of
In a particular titration experiment a 25.0 mL sample of an unknown monoprotic acid required 30.0 mL of .200 M NaOH for the end point to be reached. What is the concentration of the acid?
Show the boiling point of pure liquid A and B vapor curve, liquid curve The region where only liquid is present The region where only vapor is present The region in which an equilibrium between liquid and vapour exists.
When the reaction produces 0.500 g of NO, how many molecules of I2 will be produced?
What are the products of reaction of methyl benzoate, benzoic acid, benzaldehyde, and benzophenone with an excess of a Grignard reagent, RMgBr?
Three sparingly soluble salts, MA, MA2, and MA3, all have Ksp = 1.5 x 10-7. Determine which of these three has the highest molar solubility in water? a) MA, b) MA2, c) MA3 ,d) They are all equally insoluble.
An ideal gas is compressed isothermically by a force of 85 newtons acting through .24 meter. Calculate values of delta U and q.
Propose a mechanism for the addition of bromine and water to cyclopentene. Be sure to show how the trans product results
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