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Question- Which transition metal ion in a metal complex has the possibility of being diamagnetic in the presence of an octahedral array of ligands?
a) Sc+
b) Mn2+
c) Zn2+
d) Fe2+
Please illustrate work and walk me during the problem so that I can follow and understand it.
In the column chromatography portion of an experiment, a student uses different solvents or solvent mixtures to elute the column for separation of your product mixture.
calculate how many moles of nitrogen will be required to make 10.0 moles of nh3?radiation of wavelength 633 nm in
When the compound spontaneously decomposes, the piston moves up, the temperature of the water reaches a maximum of 29.52°C, and then it gradually decreases as the water loses heat to the surrounding air.
Problem- Why is the protonation of carboxylic acid happening on lone pair electrons of carbonyl oxygen (C=O) instead of OH group, even oxygen of OH has lone pair electrons
The combustion of 2.150 mmol of X caused the temperature of a bomb calorimter to rise from 23.650 oC to 26.350 oC. Assume T = 25.000 oC, Hcomb = -2480 kJ/mol, and ng = -4 mol gas/mol X for the combustion and determine the heat capacity of the calo..
Derive the general expression for the work per kilomole of a van der waals gas in expanding reversibly and at a constant temperature
A constant current 104.0 A is passed through an electrolytic cell having an impure copper anode, a pure copper cathode, and an aqueous electrolyte. How many kilograms of copper are refined by transfer from the anode to the cathode in a 15.5hour pe..
Problem- A sample of br2(g) takes 40.0 min to effuse through a membrane. how long would it take the same number of moles of Ar(g) to effuse through the same membrane?
Calculate the final concentration of solute when 25.0 mL of 3.0 M of carbose solution and 37.0 mL of 2.5 M carbose solution are mixed
The molar absorptivity coefficients for dye A are 4,875 at 628nm and 2,518 at 684 and for dye B are 1,578 at 628nm and 11,543 at 684nm. In an unknown mixture of the two dyes, the absorbance at 628nm is 0.7619 and the absorbance at 684nm is 0.6917...
An aqueous solution of CaCl2 has a vapor pressure of 84.0mmHg at 50 C . The vapor pressure of pure water at this temperature is 92.6mmHg . What is the concentration of CaCl2 in mass percent?
The activation energy for the reaction NO 2 (g)+CO 2 (g)?NO(g)+CO(g) is E a = 100kJ/mol and the change in enthalpy for the reaction is ΔH = -200kJ/mol. What is the activation energy for the reverse reaction?
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