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Calculate w for the adiabatic expansion of 1 mol of an ideal gas at an initial pressure of 2.25 bar from and initial temp of 475 K to a final temp of 322 K. Write and expression for work done in the isothermal pressure of 2.25 bar. What value of the final pressure would give the same value of w as the first part of this problem. Assume Cpm = 5R/2.
Calculate the volume of 6.0 M sulfuric acid H2SO4 solution required to neutralize the excess potassium hydroxide, KOH, solution from the first step of the synthesis. Indicate clearly your calculations and reasoning.
What is the molecular formula of a compound with the empirical formula NO¿ and a molar mass of 138.02 grams per mole?
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5.
Calculate deltaG for this reaction at 298K in kJ. What can be said about the spontaneity of the reaction at 298K? (1) spontaneous in the reverse direction
What is the total number of moles of electrons transferred in this reaction: 2 C7H16O + 21 O2 = 16 H2O + 14 CO2? What is the oxidation and reduction pathway?
A mixture of NO, CO2, and O2 gases has a total pressure of 2.5000 x 10^3 torr. If the partial pressure of NO is 800.0 torr and CO2 is 600.0 torr, what is the partial pressure of O2
The difference in chemical potential between two regions of a system is +7.1 kJ/mol. By how much does the Gibbs free energy change when .10 mmol of a substance is transferred from one region to the other?
the vapor pressure of pure acetone propanone is 266 torr. when a non-volatile solute is added the vapor pressure of
A tank of 10 m3 volume contains an ideal gas (CP=30 J/mol-K) at T=298 K and P=5 bar. If gas from the tank is allowed to flow through a reversible device and exhaust to the atmosphere at P=1 bar.
How does C 10 H 12 O 2 eugenol combine with Br bromine in CCl 4 carbon tetrachloride and concentrated H 2 SOP 4 at the temperature of 20 degrees Celsius?
It takes 54.0 J to raise the temperature of an 11.7 g piece of unknown metal from 13.0C to 25.0C}. What is the specific heat for the metal?
Complete the table for aqueous solutions of caffeine C8H10O2N4. a. given: mole fraction solven:0.900 find molality, mass percent solvent, Ppm solute b. given: Ppm solute:1269 find molality, mass percent solvent,
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