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Benzene has a heat of vaporization of 30.72 kJ/mol and a normal boiling point of 80.1 degrees Celsius. At what temperature does benzene boil when the external pressure is 460 torr?
Calculate the pH of a buffer tht contains 0.60M ammonium chloride
The protein needs to be in 1X buffer and in a total volume of 0.100 mL. You are given a 5mg/mL protein solution, a 20X sample buffer, and distilled water. How much of each wuld you mix together to make the required volume?
Calculate the molar concentration of HCl in a solution that has a specific gravity 1.185 and is 36.5% (w/w). Prepare from this bottle 1 L of 0.1 HCl solution.
how much heat is required to convert 20.0 of ethanol at 23 to the vapor phase at 78 ? ethanol boils at 78. its density
Element symbols and Chemical formulas - What is the total number of atoms found in each of the following compounds? What is the total number of elements found in each?
How many kJ of heat are needed to completely vaporize 1.30 moles of The heat of vaporization for water at the boiling point is 40.6 kJ/mole.
cinnamaldehyde and aniline 2) benzaldehyde and m-nitroaniline 3) benzaldehyde and aniline 4) cyclohexanone and aniline Help would be greatly appreciated and generously ranked
What is the concentration of the solution as a mass percentage?
What is the change of H for the following reaction at 273 K?
Assuming that the following structures exist, what is the bond hybridization of IF6- and IF4-? Would they be stable?
If there's a mixture of O2 and N2, and the mol of N2 is 0.605 mol, and fraction (f) of O2 is 0.251; then, what is the mol of O2?
What is the molar solubility of silver chromate. What is the solubility of silver chromate (in grams/L) in 0.045 M potassium chromate
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