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Find the enthalpy change for the chemical reaction below PCl5(g) ----> PCl3 (g) +Cl2 From the following equations: P4 (s) + 6Cl2(g) ----> 4PCl3(g) DeltaH = -2439 kJ 4PCl3(g) ----> P4 +10Cl2 (g) Delta H = 3438 kJ
Calculate the velocity (in units of m/s) of an electron having a mass of 9.09 x 10 -28 g and wavelength of 99.9 nm
Which of the following gases at 500 K would show most ideal behavior?
Calculate the collision frequencies z12 and z21, where hydrogen is component 1 and chlorine is component 2. Given: d1=0.272nm and d2=0.544nm.
What will be the effect on your final %carbonate if a drop of HCl is spilled, and is not delivered to the test tube? Explain reasoning.
What will be the volume of the balloon after half of the moles of helium leak out, it is warmed to 10 °C, and the pressure is lowered to 0.75 atm?
If 0.130 g of p-aminophenol is allowed to react with excess acetic anhydride, what is the theoretical yield of acetaminophen in moles. In grams
An aerosol can has a gas pressure of 133 kPa at 293 K. Calculate the pressure when the can is heated to 460 K.
A 45.0-L steel tank at 20.0°C contains acetylene gas, C2H2, at a pressure of 1.39 atm. Assuming ideal behavior, how many grams of acetylene are in the tank?
When 50. mL of 0.50 M formic acid is titrated with 0.50 M sodium hydroxide, calculate the pH when half of the formic acid has been neutralized, and at the equivalence point (be sure to account for the change in volume at each step). Select a good ..
A piece of iron limestone weighing 0.1965g was allowed to react with an excess of hydrochloric acid. The calcium in it was precipitated as calcium ethanedioate.
Iodine-131 has a half-life of 8.0 days. If a person ingests 2.5 mg of NaI labeled with iodine-131, how much of the radioactive isotope remains in the body after 30. days
Using the arhennius equation to plot ln(equilibrium constant) vs. 1/Temperature, how can we determine the enthalpy of reaction
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