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14.0 moles of gas are in a 8.00L tank at 20.9°C . Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a=2.300L2⋅atm/mol2 and b=0.0430 L/mol.
What is meant by the chemical shift in XPS. How does it arise and how can it be sometimes be misinterpreted.
Hurricane Dennis strike the Gulf coast of Florida with a Central pressure of 949 mbar (=711.8 torr) define what was the pressure in atm
2 Al2O3(s) → 4 Al(s) + 3 O2(g) . ?H = +3339.6 kJ/mol What is ?H for the formation of one mole of Al2O3(s) from the elements?
Calculate the pH of a buffer solution obtained by dissolving 20.0 g of KH2PO4(s) and 30.0 g of Na2HPO4(s) in water and then diluting to 1.00 L.
Forecast the direction in which each of the subsequent equilibrium will shift if the pressure on the system is raised by compression.
You are given an unkown acid H2A, which has two acidic protons per molecule. A 0.954-gram sample of this acid is titrated with .509M NaOH; complete neutralization of the acid requires 36.04mL of base, Find the molar mass of H2A.
If your absent minded lab partner spilled deionized water into your NaOH solution, diluting it, would the Ka value you determine for the solid weak acid be greater than
Describe the process design and application - Water and Wastewater Treatment
A feed stream contains H2 CO as well as a trace of CH4. Pure CH3OH is produced by income of a reactor, separator and recycle with purge to remove the non-reactive CH4.
Give an example of a compound that exhibits ionic bonding and an example of a compound that exhibits a covalent bond.
Calculate the molar concentration of a solution prepared by dissolving 2.34 g of sodium sulfate (MW = 142) in enough waterto make 250 ml of solution.
What are the possible values of the magnetic quantum number A.) all the positive integers: 1,2,3, etc. B.) represented by the formula: m = 2k + 1, where k is a positive integer C
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