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When 1.00 mol of a pure liquid is vaporized at a constant pressure of 1.00 atm and at its boiling point of 324.8 K, 29.30 kJ of energy (heat) is absorbed and the volume change is +24.70 L. What is ?E for this process? (1 L-atm = 101.3 J)
A) -2.47 × 103 kJB) -26.80 kJC) 26.80 kJD) 31.80 kJE) -31.80 kJ
A certain gaseous oxide of sulfur has an effusion rate that is 0.707 times the effusion rate of oxygen gas. What is the most likely molecular formula of this oxide?
Using an unmanned rocket to visit the space station requires 85.2 trillion BTU of energy. The best fuel for the mission will have the highest ratio of energy to volume.
Under a particular set of conditions a particular compound decomposes by a first order process. If, during an experiment under these conditions, 75.0% of the compound remains after 60.0 minutes, what is the half-life of the compound
Given: Ionization energy of F2- is 290 kJ: Calculate the bond energy of F2-. Not given but needed: bond energy of F2 and ionization energy of F-.
if 24.6 grams of lithium react with excess water how many liters of hydrogen gas can be produced at 301 kelvin and 1.01
during photosynthesis an electron is believed to travel 25 angstroms within one picoseconds. the uncertainty in time
What is the pH of a buffer prepared by adding 0.708mol of the weak acid HA to 0.609mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66×10?7.
What is w when a gas is compressed from 38.3 L to 28.8 L using a constant external pressure of 745 mmHg
How much heat is emitted when 4.55 of water condenses at 25 ? The heat of vaporization of water at 25 is 44.0.
The pyrene excimer emission spectrum at a (higher/lower/same) wavelength than (as) the excited pyrene fluorescence emission spectrum. Explain.
Which sequence of reactions would you use to synthesize 2-cyanohexane (racemic mixture) using 1-hexene as your starting material? options: a) Reaction with (1) H2SO4 (cat.)
Calculate the concentrations of Fe3+ and SCN- in the reaction mixture in part I when you add 10.00 mL of 0.200 M Fe3+ to 1.00 mL of 2.0 x 10-3 M SCN- and make up the total volume to 50.00 mL? What is the concentration of FeSCN2+?
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