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cis-dibenzoylethylene is converted to a more stable, new product, ethyl 4-phenyl-4-phenoxy-3-butenoate. What is the structure of the new product
Calculate the mass of oxygen (in mg) dissolved in a 5.00 L bucket of water exposed to a pressure of 1.13 atm of air. Assume the mole fraction of oxygen in air to be 0.21
Calculate the number of mmoles of primary standard grade Na2CO3. b. How many mmoles of HCl reacted with the Na2CO3? c. Calculate the molarity of the HCl solution.
Calculate boiling point of a solution of 500.0 g of ethylene glycol dissolved in 500.0 g of water. kf = 1.86 c/m and kb = 0.512 c/m. Use 100 degrees celsius as the boiling point of water.
A solution was prepared by mixing 50.00 mL of 0.190 M HNO3 and 124.00 mL of 0.150 M HNO3. Calculate the molarity of the final solution of nitric acid.
Calculate the value of Avogadro's number to three significant figures based on these data. (Note: the value may differ from the tabular value).
What is the mass of one mole of the gas when the density of a gas is 0.0151 g/mL at 150 degrees Celsius and 1.50 atmospheres?
What is the energy implied by the mass defect? If this energy is carried away in a single photon, what is its wavelength? To what part of the electromagnetic spectrum does this correspond
What % of the solution/solid was transferred over to the container
What is the final temperature of the water when equilibrium is reached? (Assume a density of 0.998 (g/mL) for water.)
The average bond enthalpy for a double bond is 614 and that of a single bond is 348 . Estimate the energy needed to break only the bond of the double bond of 2-butene. Express your answer numerically in joules per molecule.
calculate the amount of potassium ferricyanide(formula weight 329.23g/mole) that must be used to prepare 250 mL of a 2.5X10-3 M solution.
When the ln( kE2 / kE1 ) is plotted vs. 1/T the resulting linear graph has the slope of - 4.8 and intercept of 6.1What is the difference in activation energies of the two mechanisms? For which mechanism are the reactive collisions more efficient?
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