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Why methanol has lower boiling point than ethanol but higher heat of vaporization? Comparing to Propanol has higher boiling point but lower heat of vaporization than ethanol
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?
A mixture of two miscible solvents that may be used as the solvent for a recrystallization experiment would be which of the following
Calculate the change in enthalpy of HCl + NaOH--> NaCl + H2O for this reaction using Hess's Law. Units should be kJ/mol.
A mixture of pentane and hexane has a vapor pressure of 258 torr. The standard vapor pressure of pentane is 425 torr. What is the mole fraction of pentane?
radio wave radiation falls in the wavelength region of 10.0 to 1.00e3 meters. what is the frequency of radio wave
when taking a tlc plate and recording the Rf values what must you always write down in order for someone else to be able to reproduce your work
Amstop Company issues $20,000,000 of 10-year, 9% bonds on March 1, 2007 at 97 plus accrued interest. The bonds are dated January 1, 2007, and pay interest on June 30 and December 31. What is the total cash received on the issue date?
Copper metal is purified by electrolysis. How much copper metal could be produced from copper(II) oxide by applying a current of 10.0 amps
Given that the partial pressure of O2 in the atmosphere is 0.20 atm and the concentration of H3O+ is 2.0 x 10-6 M, determine the half-cell potential for the reduction of O2 according to the reaction: O2 + 4 H3O+ + 4 e- ? 6 H2O E° = 1.229 V
Calculate the pH of the 0.20 M NH3/0.24 M NH4Cl buffer. B)What is the pH of the buffer after the addition of 10.0 mL of 0.10 M HCl to 55.0 mL of the buffer?
Given that the standard free energy of formation of MCl2(s) and MO2(s) are, respectively, -311.5 and -286.5 kJ/mol at 25o C. What is the standard change in free energy (kJ) for the following reaction
The oil of nutmeg is known to consist of many other organic compounds besides trimyristin. What does the purity of the distillate indicate about these other compounds
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