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Forecast the number of unpaired valence electrons in the complex ion [Cr(CN)6]4- and draw out its d-orbital energy level diagram CN- is strongly interacting ligand. The wavelength of maximum absorption in the absorption spectrum of the complex ion is 320nm. Compute the d-orbitials splitting Δo, in kJ mol-1
Compute the molarity of the hydroxide ions (OH- )in a solution that has been made by adding 70.3 grams of barium hydroxide (Ba(OH)2) in H2O(water) and diluting the solution to a final volume of four litres.
1.00 mL of .500 M Ag+ is added to this solution and the resultant AgCl quantitatively precipitated. Basd on the Ksp expression, calculate the concentration of the Cl- that remains in solution
Calculate the de Broglie wavelength of a neutron moving at 1.17% of the speed of light. _____m
A solution of NaOH(aq) contains 8.7 g of NaOH(s) per 100.0 mL of solution. Calculate the pH and the pOH of the solution at 25 °C.
Sketch all steps in the synthesis of each of the subsequent compounds using only organic starting material given plus any needed organic/inorganic reagents.
Four balloons, each with a mass of 10.0 g, are inflated to a volume of 20.0L, each with a different gas: helium, neon, carbon monoxide or nitrogen monoxide. If the density of air at 25 degrees C and 1.00 atm is 0.00117 g/mL, will any of the baloon..
What is the molarity (mol/L) of a potassium permanganate solution if 14.09 mL of it was used to titrate a 10.00 mL sample
Using a sample of water with a mass of 46.0 grams at a temperature of -58. Degree Celsius calculates how many Joules of energy (E) are necessary to heat the ice to 0 degree Celsius. Specific heat of ice= 2.1 J/g C).
chemical potential energy from rotating turbines into thermal energy. B) electrostatic energy from rotating turbines into chemical energy
Assuming that a particular individual's stomach contains 1 quart of 0.1 M HCl, and that an antacid tablet contains as its active ingredient 500 mg of calcium carbonate, what would the final pH of this individual's stomach contents be after taking ..
Calculate the pH of a buffer that is 0.058 M HF and 0.058 M LiF. The Ka for HF is 3.5 x 10^-4. Calculate the pH of a buffer that is 0.158 M HClO and 0.099 M NaClO. The Ka for HClO is 2.9 x 10^-8.
acetaminophen a common aspirin substitute has the formula c8h9no2. determine the number of molecules of acetaminophen
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