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The standard enthalpy of formation of the metallocene bis(benzene)chromium was measured in a calorimeter. It was found for the reaction Cr(C6H6)2(s) ? Cr(s) + 2 C6H6(g) that.
Find the corresponding reaction enthalpy and estimate the standard enthalpy of formation of the compound at 583 K. The constant-pressure molar heat capacity of benzene is 136.1 J K-1 mol-1 in its liquid range and 81.67 J K-1 mol-1 as a gas.
Which compound has the higher barrier to rotation about the central C-C bond: 2,3-dimethylbutane or 2,2,3-trimethylbutane. Or is the barrier to rotation for each the same? Please draw out and explain reasoning, use extra paper if necessary.
What is the equilibrium concentration of fluorine if the initial concentrations of bromine and fluorine were 0.111 moles/liter in a sealed container and no product was present initially?
For which of the following species is resonance an important property: HONO, HONO2, N3-, NO2-, NO2
If a breakdown of the thermal insulation around the turbine allows a heat loss of 60 kJ per kg of stream, and the exiting steam is at 150oC and 0.3 MPa, what will be the power developed by the turbine if the inlet steam conditions and flow rate ar..
a sample of oxygen is collected in a 206 ml container over water at 15c and the barometer reads 793 torr. what volume
write a chemical equation for the oxidation of ethane gas to form water vapor and carbon dioxde gas. define this as the
Ballon filled with 500.0 mL of helium at atemp of 27 degrees C and 755 mmHg. As the ballon risesin the atmosphere , the temp & pressure drop. What volume will it have when it reaches an altitude where the temp is - 33 degrees celcius and the press..
A sample of air was compressed to a volume of 10.0 L. The temperature was 295.0 K, and the pressure was 8.60 atm. How many moles of gas were in the sample. Enter units.
How does the size of ions in a solution affect the solutions conductivity. Would you expect the conductivity of a solution containing an equal concentration of ions with a charge of +2 to be twice that of one containing ions with a charge of +1
calculate the pOH and the pH when 45.0mL of 3.00mol/L potassium hydroxide solution is diluted by adding 100.0mL of water
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?
what is the volume percent of a solution prepared by dissolving 43 g of NaOH in enough water to make a final volume of 120 ml.
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