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An oxidation-reduction reaction in which 3 electrons are transferred has a deltaG(standard)=+18.55 kJ at 25 C. What is the value of E(standard)
what is the equilibrium pressure of hydrogen sulfide if the equilibrium pressure of hydrogen is 0.103 atm and the equilibrium pressure of sulfur is 0.417 atm?
Determine the expression for the rate of reaction with respect to each of the reactants and products
A buffer is made using 45.0 mL of 0.750 M HC3H5O2 and 55.0 mL of 0.700 M NaC3H5O2.What volume of 0.10 M NaOH must be added to change the pH of the original buffer solution by 2.5%? Ka for this acid is 1.3 x 10
The concrntration of the alkane C20H42 (FM 282.55) in particular sample of rainwater is 0.2 ppb. Assume that the density of rainwater is close to 1.00 g/mL
Calculate the potential volume of the gas contained in 500-mL aerosol can when it is heated from 25 degrees C to 54 degrees C (approx. 130 degrees F) assuming a constant pressure.
How does the energy of two photons corresponding to a wavelength of 451 nm (blue light) compare with the energy of three photons corresponding to a wavelength of 704 nm (red light)?
The molar mass of corn oil is 890g/mole. How many moles and how many grams of sodium hydroxide are required to react with the 15mL (13.7g) of corn oil? Show your calculations.
Calculate the mean percent of hydrogen peroxide when three determinations were 3.03% , 2.89% and 3.22%
Calculate the value of the rate constant. Pick the choice from below which gives the correct reaction order and value of the rate constant for this reaction.
PET has a permeability to carbon dioxide of 0.227x10^-13(cm^3 x cm)/(cm^2 x s x Pa) at 25 C. Given that the activation energy for permeability is 27 kJ/mole, at what temperature would the permeability be ten times higher
Oxalic acid, H2C2O4 has acid dissociation constants Ka1 = 5.9 x 102 and Ka2 = 6.4 x 105. What is the pH after 20.00 mL of 0.0500 M NaOH is added to 5.00 mL of 0.2000 M H2SO3.
Which of the following statements concerning the determination of crystal structure by x-ray diffraction is incorrect? X-rays are reflected from the repeating planes of an ordered crystal lattice
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