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2.25 moles of an ideal gas with CV.m = 3/2R undergoes the transformations described in the following list from an initial state described by T = 310 K and P = 1.00 bar. Calculate q, w, delta U, delta H, and delta S for each process. a. The gas is heated to 675. K at a constant external pressure of 1.00 bar. b. The gas is heated to 675. K at a constant volume corresponding to the initial volume. c. The gas undergoes a reversible isothermal expansion at 310. K until the pressure is one third of its initial value.
Also, give an estimate the pl of this tetrapeptide (you may assume the pKa of any acidic R group is 4, the pKa of any basic R group is 11.5, and the pKa of the alpha-COOH is 2, and the alpha-NH3 is 9.5).
if you were to draw all the products of radical bromination of ethane, how many structures would you draw
Silver metal crystallizes in a cubic closest packed structure. The face centered cubic unit cell edge is 409 pm. Calculate the density of the silver metal.
what is the maximum kinetic energy of a photo electron ejected from cesium by 555nm light? note that if the wavelength of the light used to irradiate the cesium surface become longer than 600 nm, no photoelectrons are emitted.
Balance the equations and indicate the type of reaction. CaO +HCl -> CaCl2 + H2O. and also, Fe + O2 -> FeO3.
when burned in oxygen, yielded a mixture of CO2 and SO2 in which the number of moles of CO2 was one-half the number of moles of the SO2. How many grams of C contained in the mixture?
An evaluation of R was performed, following the procedure described in this module. The barometric pressure was 736 torr, the temperature was 295k and volume of hydrogen gas collected was 35.6 mL. The calculated value of R was 82.1 mL atm K^-1 mol..
One of my pre-lab questions asks me to add one of two steps to the beginning of the mechanism for the reaction of benzopinacol with I2/HOAc to benzopinacolone to show the function of I2 in this rearrangment.
A solution of H2SO4 and KI is then added to conver the MnO2 to MN^2+, and the iodide is converted to I2. The I2 is then titrated with standardized Na2S2O3. Calculate the amount of O2 in 25.0mL of water if the titration requires 2.45ml of 0.0112 M N..
A solution which contains 41.0 g of an unknown molecular compound in 312 g of water freezes at -2.23°C. What is the molar mass of the unknown?
What is the maximum amount of ethanol (in millimoles) that could theoretically be produced under the following conditions?
Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0 10-6) by 0.200 M HNO3. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added.
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