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Provide a structure for the following compound: EI mass spectrum: two molecular ions of about equal intensity at m/z = 180 and 182; IR: 1740 cm-1; 1H NMR: ? 1.30 (3H, t J = 7 Hz); ? 1.80 (3H, d, J = 7 Hz); ? 4.23 (2H, q, J = 7 Hz); ? 4.37 (1H, q, J = 7 Hz).
Using standard free energy of formation values given below, calculate the equilibrium constant K_p of the reaction
The work-up procedure calls for washing the crude 2-chloro-2-methylbutane with cold sodium bicarbonate solution. a. What purpose does this wash serve?
the concentration of mud in the dirty stream from the settling basin to the lagoon is 4000 mg/L. Calculate the flow rates of the two discharge stream (L/s) that exit from the settling basin.
The mole fraction of oxygen in the atmosphere is .21. If the barometric pressure is 0.975 atm, what is the concentration of oxygen in water? Kh=1.3 x10^-3 M/atm
Estimate the molar heat of vaporization of a liquid whose vapor pressure doubles when the temperature is raised from 85 ºC to 95 ºC.
A furnace is burning coal at the rate of 950,000 kg of coal/day. The coal contains 5.5% ash and 99% of that ash is collected in the air pollution control (APC) device downstream from the furnace
Consider three different compounds of the hypothetical element X using the table of bond lenghts as a reference, rank the three compounds shown below in order of increasing
Calculate the ratio of rates of effusion of O2 versus Cl2. Record your answers to three significant figures. The concentration of CO2 in the atmosphere is 375ppm (by volume). What is the mole fraction of CO2 in the atmosphere?
A peptide with the amino acid sequence C-P=T-Y-R-L-D-Q (MW = 995.12 g/mol) is dissolved in this solution at a concentration of 5 micromol.
-13 degrees C air pressure in an auto tire is 1.5 atm. if the volume does not change, what is the pressure after the tire has warmed to 15 degrees C?
What is [Pb^2+] in a saturated solution of PbCO3 if Na2CO3,with a common ion is added to give [CO3^2-]=3.0x10^-4 M? PbCO3 Ksp=7.4x10^-14
Show your work in finding the partial pressure of the nitrogen gas, PN2. 2) Show your work in finding the mass of the nitrogen collected
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