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Determine the value for delta H solution at infinite dilution calculated from the following delta standard H of formation:
Na2CO3 (1 mole in 50,000mol of water) -1142.94 KJ/mol
Na+ (at infinite dilution) -240.12 KJ/mol
CO3 2- (at infinite dilution) -677.14 KJ/mol
a copper wire is strectched with a stress of 10ksi at 20deg C. If the length is held constant, to what temperature must the wire be heated to reduce the stress to 5ksi
The following compounds undergo McLafferty rearrangement in the mass spectrometer. Predict the masses of the resulting charged fragments for each of the following compound.
Determine the volume of 6.44*10^-2 M adenosine triphosphate (ATP) that is having 1.68 mol of adenosine triphosphate express your answers in (mL)?
how many moles of hydrogen gas (H2) can be liberated from 104 mol of magnesium hydride if the process operates on 77% efficency?
Calculate the volume of carbon dioxide at 20.0 C and .960 atm produced from the complete combustion of 3.50 kg of methane. Compare your result with the volume of CO2 produced from the complete combustion of 3.50 kg of propane (C3H8)
A 100.0 g sample of aluminum released 1680 calories when cooled from 100.0C to 20.0C. What is the specific heat of the metal
The equilibrium constant for a reaction is 0.48 at 25 o C. What is the value of ?G o at this temperature?
At what temperature would a 1.80 m NaCl solution freeze, given that the van't Hoff factor for NaCl is 1.9? Kf for water is 1.86 degrees C/m. answer in degrees C
Draw and discuss the mechanism of the Diels-Alder reaction (with arrows to show the electron movements). Draw the orientation of the reacting p-orbitals and indicate how they overlap to form product.
When 0.5000L of a 1.00M solution of Pb(NO3)2 is mixed with and excess of 1.00M solution of KI how many grams fo lead(II) iodide are formed
decomposition of N2O5 to NO2 and O2 at 70 degree celsius is 6.82 x 10^-3 s-1. Suppose we start with 0.300 mol of N2O5(g) in a .500L container. How many minutes will it take for the quantity of N2O5 to drop to .030 moles?
Write down a lewis structure for SbCl5 and also explain Does the the octet rule is obeyed by this molecule Explain how many grams would 3.01 * x10 23 atoms of tellurium have?
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