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If you were to carry out saponification of ethyl tridecanoate, would you expect the product to generate foam/froth when mixed and agitated with water? Explain.
The cell potential of the following electrochemical cell depends on the gold concentration in the cathode half-cell:
You are given an unknown sample that when treated with hydrochloric acid forms a precipitate. After decantation, you add boiling water to the solid. All of the solid disappears.
Discuss the differences observed in the IR and NMR spectra of 3-nitrophthal-hydrazide and luminol that are consistent with reduction of the nitro function to an amino group in this experiment.
An emission line from K atoms is found to have two closely spaced components, one at 766.70nm and the other at 770.11nm. Account for this observation, and deduce
A given reaction has an equilibrium constant at 920 K of 2.73 x 1011. What is DGo at this temperature in kJ
Write a balanced net ionic equation to show why the solubility of FeCO3(s) increases in the presence of cyanide ions and calculate the equilibrium constant for this reaction.
Assuming that DHo and DSo hardly change with temperature, determine the temperature in K at which the spontaneity of this reaction changes.
Solid ammonium fluoride is slowly added to 125 mL of a magnesium sulfate solution until the concentration of fluoride ion is 0.0476 M. The maximum amount of magnesium ion remaining in solution is
Given the values of DHfo in kJ/mol and So in J/mol K given below, calculate the value of DGo in kJ for the reaction at 298 K
Given the values of DGfo given below in kJ/mol, calculate the value of DGo in kJ for the combustion of 1 mole of propane to form carbon dioxide and liquid water.
Solid aluminum acetate is slowly added to 75.0 mL of a 0.0536 M sodium phosphate solution. The concentration of aluminum ion required to just initiate precipitation is
Calculate the percent ionization of 8.0×10?3 M butanoic acid in a solution containing 8.0×10?2 M sodium butanoate
Predict the chemical formulas and IUPAC names of the missing reactants or products, to complete the following chemical reactions
A student creates a coffee cup calorimeter for lab. The coffee cup contains 30 mL of water at a temperature of 55.5 °F. He then adds 65.4mL of water, at 165.5 °F, into the coffee cup. The fi
a 20 year old male was brought to paramedics after ingesting 100mL of pure ethylene glycol which is a lethal dose. The hospital pharmacy is out of ehtanol so they use a bottle of 100-proof whiskey i
A 0.338-g same of anhydrous sodium carbone, Na2CO3, is dissolved in water and titrated to a methyl orange endpoint with 15.33 mL of a prepared hydrochloric acid solution. What is the molar concentra
What is the Cl ? concentration just as Ag2CrO4 begins to precipitate when 2.0 M AgNO3 is slowly added to a solution containing 0.048 M Cl ? and 0.048 M CrO42-?
What is the molarity of the HCl solution if 310mL of the HCl solution reacts with magnesium to produce 5.40L of H2 gas measured at STP
A buffer solution is 0.10 M HAc (acetic acid) and 0.10 M NaAc (sodium acetate) and we have 1.000 Liter of it. What is the pH after 0.010 moles of HCl are added to this solution
A 100.0 mL sample of .20 M HF is titrated with .10 M KOH. Determine the pH of the solution after the addition of 100.0 mL of KOH. The Ka of HF is 3.5*10^-4
A student dissolves 27.2 g of aniline, C6H7N in 120 mL of water. At what temperature will the solution freeze
A solution of 16.1 g of an unknown solute in 600 grams of water boils at 100.28 C. What is the molar mass of the solute
The next day you notice that some of the gas has leaked out. The pressure and temperature remain the same, but the volume has changed to 12.0 . How many moles of gas () remain in the cylinder
Although Aluminum Chloride, AlCl3, is ionic in the solid state, it is molecular in the gaseous state. Write the Lewis Structure, prepare a VSEPR sketch, describe the geometry, prepare a VB sketch de