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The enthalpy change for the reaction of 50.0ml of ethylene with 50.0ml of H2 at 1.5 atm pressure (problem ^H= -0.31kj. What is the value of ^E
calculate the percent (by volume) of air that is displaced if all of the liquid nitrogen evaporates.(liquid nitrogen has a density of 0.807 g/mL)
Calculate the mole fraction of ethylene glycol in the solution.
What volume (mL) of a concentrated solution of NaOH (6.00 M) must be diluted to 200. mL to make a 0.88 M NaOH solution
Calculate what the pH is at 0 mL added strong acid, the quarter-, half-, and three-quarter-equivalence points, the equivalence point, and when excess acid has been added.
If a few drops of water on the outside of the hot water syringe used to dispense the 5.00 mL sample into the calorimeter well for the Kcal determination fell into the well
a solution is prepared by dissolving 396 grams of sucrose in 624 grams of water. what is the vapor pressure of this solution at 30 degrees celsius.
constant- pressure calorimeter containing 80 g of water at 24.3 C. the final temperature of the system was found to be 28.8 C. Calculate the amount of heat that flowed into the water.
calculate the amount of energy as heat by the freezing of 13.3 g of a liquid substance. given that the substance has a molar mass of 82.9g/mol and a molar enthalpy of fusion of 4.60 kj/mol.
Which of the following properties would you expect to be different for the two enantiomers of 2-pentanol? A. boiling point
What product is formed from nitration of methyl benzoate. we put .20 ml methyl benzoate, .45 ml concentrated 18 M sulfuric acid in vial, immersed in ice and attached air condenser
If I add 1.65L to 112g of sodium acetate what is the molality of sodium acetate in the solution
Estimate the vapor pressure at temperatures of 273, 298, 363, 383, and 423 K respectively
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