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1.The enthalpy change for the following reaction is -903 kJ. Using bond energies, estimate the N-H bond energy in NH3(g).
4NH3(g) + 5O2(g)4NO(g) + 6H2O(g)
kJ/mol
2.The enthalpy change for the following reaction is -108 kJ. Using bond energies, estimate the C=O bond energy in COCl2(g).CO(g) + Cl2(g)COCl2(g) kJ/mol
At a certian temperature and pressure, chlorine molecules hav an average velocity of 0.0610m/s. What is the average velocity of sulfur dioxide molecules under the same conditions.
Write the equation of the cell reaction and indicate cathode and anode half-cells for the electrochemical cell formed from a Mg/Mg^2+ half-cell and In/In^3+ half-cell.
It is written in chemical shorthand as NaCl. How would you go about finding approximately how much salt there is in our body
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when you reduce benzoin with NaBH4, why do you get mostly the meso compound?
Propose a synthetic method to carry out the transformation shown, using any additional organic or inorganic reagents. 5 methyl 1 hexyne ----> 7 methyl 3 octene
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The system is now cooled, and the process is stopped when liquid is first observed to condense onto the glass. What is the final temperature
A volumetric pipet is labeled as 25mL. If it delivers a 24.844g of deionized water at 31 degrees Celsius, what is the calibrated volume of the pipet. What would be the mass of water delivered from this pipet if the water temperature was 15 degrees..
The pressure on a sample of liquid water is increased from 1.00 bar to 100.00 bar at a constant temperature of 20 find h,u,q,and w. assume that the volume of the liquid water is constant
what is the empirical formula for a substance if a 1.000 g sample of it contains .262 grams of nitrogen 0.075 grams of hydrogen and .663 grams of chlorine?
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