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What is the arrow pushing mechanism for the depolymerization of PET (polyethylene terephthalate) with KOH and pentanol? And what is the mechanism used to convert the resulting compound to terephthalic acid?
2NO (g) + 3F2(g) yields 2NOF3(g). suppose 0.20 mol of NO and 0.30 mol of F2 are added to a 5.0-L container. If x mol of NOF3 is present at equilibrium, how many moles of fluorine are present at equilibrium.
A mixture of two miscible solvents that may be used as the solvent for a recrystallization experiment would be which of the following
A 4.90 g nugget of pure gold absorbed 266 J of heat. What was the final temperature of the gold if the initial temperature was 23.0°C? The specific heat of gold is 0.129 J/(g·°C).
Liquid nitrogen has a density of 0.808 g/mL at 77 K. A sample of 1.5 L of liquid nitrogen is allowed to evaporate at 22.2 °C and 0.998 atm of pressure. What volume will the nitrogen gas occupy
Gaseous hydrogen and oxygen can be prepared in the laboratory from the decomposition of gaseous water. The equation for the reaction is
Consider the reaction: Cu^2+(aq) + 4NH3 (aq) -> Cu(NH3)4^2+(aq) Kf=2.1 x 10^13 If Ksp for Cu(OH)2 is 2.2 x 10^-20, what is the value of the equilibrium constant, K, for the reaction below? Cu(NH3)4^2+(aq) + 2OH -> Cu(OH)2(s) + 4NH3(aq)
The conditions of a gas change in a steady flow process from 20 degrees C and 1000 kPa to 60 degrees C and 100 kPa. Devise a reversible nonflow process
A buffer solution is.290M in a weak base with kB of 2.8*10-5 as well as .490M in the conjugate acid what is the pH
Explain why the addition of a small amount of base to an acidic buffer solution causes only a small change in the pH of the buffer solution.
a gas-filled balloon having a volume of 6.00 l at 1.2 atm and 25degc is allowed to rise to the stratosphere about 30 km
Utilize the chemical equation for the reduction of oxygen to define why corrosion occurs more slowly in dry climates.
Explain why is it assumed that the reaction between NaOH and KHP goes to completion. Would it be a source of error in the experiment if it did not? why or why not
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