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Which of the following is an experimental fact that valence bond theory cannot explain, but molecular orbital theory can?
A) the paramagnetism observed for O2
B) the N-N bond order in N2
C) the rotational barrier about the C-C bond in ethylene
D) the existence of H2 and not He2
If 20.0 mL of 0.12 M cobalt(II) nitrate is reacted with 15.13 mL of 0.097 M sodium phosphate, which of the two reactants will be left over and which will be completely consumed.
calculate the mass of vapour present in a room of volume 250 meter cube that contains air at 23 degree centigrade on a day when the relative humidity is 53 per cent.
Consider the reaction 2ZnS + 3O2 → 2ZnO + 2SO2. Suppose that you wanted enough O2 to completely react with 500. g of ZnS.
Classify the following pair of compounds as the same compound, enantiomers, diastereomers, constitutional isomers, or not isomeric. Also, select the correct IUPAC name
A solution of sodium chloride in water has a vapor pressure of 20.3 torr at 25°C. What is the mole fraction of NaCl in this solution?
Insoluble BaCrO4 precipitates when solutions of BaCl2 and Na2CrO4 are mixed. What is the maximum mass of BaCrO4 (MM=253 gmol¯1 ), in g
Hemoglobin has a positive charge of +5 and a radius of 3.55 nm in water. How far will the protein travel in one hour in an electrophoresis gel at 25C when a field of 1.0 V cm^-1 is applied if the viscosity of the gel is 0.891 cP
derive the rate equation in terms of [NO] and [O2] as well as k ( Assume N2O2 to be in a steady state )
How many grams of chromium would be electroplated by passing a constant current of 5.2 amperes through a solution containing chromium(III) sulfate for 45.0 minutes?
Determine how many moles of Trisodium phosphate would be required to react with 4.0mol of Silver Nitrate?
Dipole moment, Formaldehyde has a very large dipole moment (2.33 Debye) whereas carbon monoxide has a very small dipole moment (0.11 Debye)
The volume of the bulb was 1.524 liters. The temperature was 28.40 C, and the manifold pressure was 637.6 torr. What volume, in liters, would this gas sample occupy at STP?
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