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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
If the volume of EDTA needed to reach the endpoint was 26.9 mL in trial one, 27.3 mL in trial two and 26.4 mL in trial three, what is the hardness of the water in ppm + 95% confidence limit
Hospital X-ray generators emit X-rays with wavelength of about 15.0 nanometers (nm), where 1 nm= 10^-9 m. What is the energy of the X-rays
Given the three isomeric alcohols, 2,2-dimethyl-1-butanol, 2-methyl-2-pentanol, and 2-methyl-3-pentanol, which are chiral
Ethanol (CH3Ch2OH) the intoxicant in alcoholic beverages, is also used to make other organic compounds. In concentrated sulfuric acid, ethanol forms diethyl ether and water.
A 200. mL air sample collected at 35°C has a pressure of 550. torr. What pressure will the air exert if it is allowed to expand to 425 mL at 48°C?
Weigh 3.503g of NaC2H3O2*3H2O and add it into a 150mL beaker. Pour in 8.8 mL of 3M acetic acid. Pour in 55.6 mL of distilled water and add it to the mixture and stir the solution.
A. Liquids have very strong attractive forces holding them together B. Liquids have moderately strong attractive forces holding them together C. Liquids have very weak attractive forces holding them together.
a batch of 1000 kg of KCl is dissolved in sufficient water to make a saturated solution at 363K, where the solubility is 35 wt% KCl in water. the solution is cooled to 293K, at which the solubility of KCl is 25.4 wt%.
Electrons can be used to probe the arrangement of atoms on a solid surface if the wavelength of the electrons is comparable with the spacing between the atoms
Explain an experiment that could prove that the ADH-catalyzed oxidation of ethanol to acetaldehyde is stereo specific.
How many different types of resonance structures can be drawn for the ion SO32.
Are the values of Km and Vmax obtained from LinearWear Burk Plot larger or smaller than those obtained from Michaelis Menten Plot. Explain why
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