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The odor of spoiled butter is due in part to butanoic acid, which results from the chemical breakdown of butter fat. A 0.100 M solution of butanoic acid is 1.23% ionized. Calculate the value of Ka for butanoic acid.
compute the momentum of a water molecule at normal conditions assuming its kinetic energy mv2 2 is equal to 3kb t2.
What tripeptide would be synthesized from the informational strand of DNA with the sequence 5' GTATCCAGT?
perform the degrees-of-freedom analysis and calculate the rates of (1) fresh propane feed, (2) propane entering and (3) exiting the reactor
The legal definition of intoxication, in many states of the U.S. is that the BAC is 0.08 or higher. What is the concentration of the alcohol, in terms of molarity in blood if the BAC is 0.08
A tank contains N2 at 1.0 atm and O2 at 2.0 atm. Helium is added to this tank until the total pressure is 6.0 atm. What is the partial pressure of the helium?
calculate the work done in joules when 50.4 g tin is dissolved in excess acid at 1.04 atm and 20 degrees celsius.
Assuming that the smallest measurable wavelength in an experiment is 0.670 fm (femtometers), what is the maximum mass of an object traveling at 605 m·s-1 for which the de Broglie wavelength is observable
What osmotic pressure would develop across the membrane if the temperature is 26.0 degrees Celcius?
calculate the standard molar enthalpy of formation delta H degree f of N2H4(g) from the following information
The decomposition of XY is second order in [XY] and has a rate constant of 7.02x10^-3 M^-1 s^-1 at room temperature. what is the half life ( in seconds) for this reaction at an initial concentration of 0.100M? how long will it take for the concent..
What is the change in internal energy (?E) when a system loses 10 kJ of energy and 5000 J of work is done on the system?
A battery is constructed based on the oxidation of magnesium and the reduction of Cu^2+. The initial concentrations of Mg^2+ and Cu^2+ are 1.2×10?4M and 1.6M, respectively, in 1.0-liter half-cells.
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