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How many atoms of hydrogen are there in 3.50 x 102 grams of water?
The osmotic pressure of 0.010M solutions of a non-voliatile electrolyte solure "a" and a non-volitale non-electrolyte solute "b" are 0.605 atm and 0.235 atm respectively
Why is the resonance energy of pyrrole (21 Kcal/mol) greater that the resonance energy of furan (16 kcal/mol)
What is the value of q when 7.12g of water vaporizes at 373 K? The enthalpy of condensation of water at 373 K is -40.7 kJ/mol.
The inlet velocity to and the outlet velocity from the scrubber are 25 ft/s and 20 ft/s, respectively. The scrubber cools the flue gas to 5500F. Determine the duct size required at the outlet of the unit.
How many grams of dry NH4Cl need to be added to 2.00 L of a 0.600 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.89. Kb for ammonia is 1.8 X10^-5.
A .25-mole quantity of CuSO4 is added to a liter of 1.0 M NH3 solution. What is the concentration of Cu2+ at equilibrium. [The formation constant for Cu(NH3)4 is Kf=5.0e13]
a perfect gas undergoes isothermal compression which reduces its volume by 2.20 l. the final pressure and volume of the
The value of delta H for 2CO(g) + O2 (g) = 2CO2(g) is -482 kJ. Calculate the heat released to the surroundings when 38.5 g of O2 (g) reacts with excess CO
State a balanced chemical equation for the following redox reaction I- (aq) + NO3- (aq) I2 (s) + NO (g)
Calculate the magnitude of the cohesive energy of potassium iodide (KI). The ionic radii of K+ and I?, are 152pm and 206 pm, respectively.
The wavelength corresponding to the threshold frequency to tungsten surface is 230nm. Calculate the kinetic energy of the photoelectron ejected from the surface of tungsten metal.
Consider the side products that might be formed in the reaction of preparing t-amyl chloride from t-amyl alcohol via a unimolecular nucleophilic substitution. Provide structures for these products and indicate which would be expected to be the maj..
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