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The molar enthalpy of vaporization of hexane (C6H14) is 28.9 kJ/mol, and its normal boiling point is 68.73°C. What is the vapor pressure of hexane at 25°C?
171 torr4.44 torr117 torr3370 torr759 torr
Calculate the pH during the titration of 24.8 mL of 0.736 M HBr(aq) with 0.185 M KOH(aq) after 14.1 mL of the base have been added
Draw the structure of aspiring and assign each different type of proton(s) a letter. Then assign the letters to their corresponding peak in the NMR spectrum
calcualte the pH at one-half the equivalence pont and at the equivalence point for a titration of 50 mL of 0.100M acetic acid with 0.100M NaOH
What was your melting point of your impure and recrystallized acetanilide? What does this tell you about the sucess of your purification?
It then gives off a photon having a wavelength of 1740 nm. What is the final state of the hydrogen atom? Values for physical constants can be found here.
determine the maximum number of coordination sites that the ligand can occupy on a single metal ion.
Which of the following statements for E2 reaction is/are correct? a) no rearrangement occurs b) the rate determining step is bimolecular c) the reaction is stepwise d) protic solvents are generally favored
The Ksp for silver sulfate (Ag2SO4) is 1.2 * 10^-5. Calculate the solubility of silver sulfate in each of the following.
Calculate the pressure exerted by 20 gram-moles of ammonia at 300 K in a 5-liter container, using : a. the ideal gas equation b. the SRK equation
The Cd2+ was displaced from EDTA by the addition of an excess of CN-. Titration of the newly freed EDTA required 29.2 mL of 0.0120 M Ca2+ . What were the molarities of Cd2+ and Mn2+ in the original solution
Determine the value of Faraday used If the electrolysis was carried out for eighty minutes with a current of four amperes flowing
Deduce from these data the corresponding equation and write the formulas for the oxide and sulfate of M. Using the smallest whole number coefficients write the balanced equation for the reaction of the metal M with hydrochloric acid.
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