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In the complex ion [ML6]n+, Mn+ has seven d electrons and L is a weak field ligand. According to crystal field theory, the magnetic properties of the complex ion correspond to how many unpaired electrons?
Which one of the following molecules has a zero dipole moment? A. CO B. CH2Cl2 D. SO2 C. SO3 E. NH3 67. Indicate the type of hybrid orbitals used by the central atom in CCl4. A. sp B. sp2 C. sp3 D. sp3d E. sp3d2 68. What is the hybridization of th..
A gas bottle contains 0.650 mol of gas at 730 mm Hg pressure. If the final pressure is 1.15 atm, how many moles of gas were added to the bottle.
How much energy in kilojoules is required to change 47.6grams of ice at 0 degrees of celcius water at the same tempature
If 3.17 moles of ethane, C2H6 undergo combustion,according to the unbalanced equation C2H6+O2--> CO2+H2O, how many moles of oxygen are required?
A 9.775 g. gaseous mixture contains ethane (C2H6) and propane (C3H8). Complete combustion to form carbon dioxide and water requires 1.120 mol of oxygen. Calculate the mass percent of ethane in the original mixture.
A mixture consisting of 2.50×10!3 g of O2, 3.51×10!3 mol of N2, 4.67×1020 molecules of CO are placed in a vessel with a volume of 4.65 L at 15.4°C.
What volume and mass of steam at 100 degrees celsius and 760 torr would release the same amount of energy as heat during condensation as 65.5 cm(cubed) of liquid water would release during freezing?
The value of heat of reaction for the following reaction is -6535 kJ. What will the amount of heat in kJ evolved during the combustion of 13.1 grams of C6H6? The value of heat of reaction for the following reaction is -6535 kJ. What will the a..
If (initially) 0.22 mol of Br2 and 0.22 mol Cl2 are introduced into a 1.0 L container at 400. K, what will be the equilibrium concentration of BrCl? Assume the initial product concentration is zero.
A gas expands and does P-V work on the surroundings equal to 343 J. At the same time, it absorbs 159 J of heat from the surroundings. Calculate the change in energy of the gas.
Nitrogen dioxide and water react to produce nitric acid HNO3 and nitrogen monoxide.
If the initial concentration of AB is 0.260 M, and the reaction mixture initially contains no products, what are the concentrations of A and B after 80 s?
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