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Determine the numbers of unpaired electrons are in the d-orbital splitting diagram for an octahedral complex ion of the Fe2+ in the low spin case
Calculate the crystal field splitting energy for this ion in the kJ/mol when a chemist claims to have found a complex ion where the most intensely absorbed light is 337.0 nm.
Assume that you were to warp the piece of string around equator of Earth. How much extra string would you require if you wanted string one foot off Earth all way around? Suppose earth is perfect ci
How can determine the numbers of mg of C,H,O is present in the original sample Y. The combination of 20.63 mg of compound Y, which is having only the C, H, O, with excess oxygen gave 11.85 mg
To form the aluminum sulfide the elemental aluminum reacts with the elemental sulfur. When this compound is mixed with the water, a white precipitate and a foul-smelling gas are produced.
A student added 5.38g of Al(OH)3 to a beaker which is having the 250.0 ml of a 1.00M HCl solution , stirred it, and observed that the solid dissolved totally.
Determine the volume of CO2 at 16.5°C and 746 mm Hg pressure obtained by treating 32.6 g of Na2CO3 with an excess of hydrochloric acid.
What annual interest rate on the certificate of deposit compounded monthly would yield the equivalent return? Use A=P(1+ r/n)^(nt).
Identify the trans and cis stereoisomer. Illustrate all the chair conformations of 2-tert-butylcyclohexanol. Circle the least stable conformation and explain your choice in detail.
Discuss under what conditions an anti-Markovnikov-product will occur. React 2-pentene with HBr under the conditions to produce the anti-Markovnikov product.
Determine what volumes of a 0.0245M solution of potassium permanganate are needed to titrate 0.461g of sample that is 91.6% sodium oxalate?
3 students are planning to rent the appartment for a year and share equally in cost. By adding the fourth person, every person could save $75 a month. Determine the monthly rent?
Calculate the new partial pressure of each reactant in the vessel after equilibrium is reestablished. Suppose the volume of the container is suddenly reduced to one half via a piston mechanism.
Would the average kinetic energy still be the same? What if the pressures were different among the two but still at the same temp?
Calculate the moles of glucose present in this solution when a solution of glucose C6H12O6 dissolved in the 150g of ethanol has an ethanol vapor pressure of 200 torr at 340K.
If the initial temperature of the water was 6 degrees C and the water was converted to steam at 100 degrees C. Water is flowing out of a hose line at a rate of 625 LPM. Calculate the amount of ener
As the two gases diffuse down the tube, a white ring of NH4X produces 86.3 cm from the ammonia flask. Find out the element X name or symbol. A flask of ammonia is connected to a flask of an unknown
Determine all solutions of equation tan2 x + tan x - 2 = 0 in interval [0, 2π). You must get 4 distinct solutions. Two can be easily stated as exact values involving.
When a 1.48 g sample of this compound placed in a contained and warmed to the 165 degrees C, it has a pressure of 805 torr and a volume of 650 mL.
Suppose that rubbing alcohol (C3H8O) which is having 1.02g evaporates from a 54.0g aluminum block. If the aluminum block is initially at the 25'C, describe the final temperature of the block after t
Initially [SCl2] = 0.675 M and [C2H4] = 0.973 M, and after the reaction reaches equilibrium [S(CH2CH2Cl) 2] = 0.350. how can describe the equilibrium constant for this reaction?
Person averaged 52 mph on last part of trip because of traffic. Total time of trip was 5hrs and 45 minutes. Determine amount of time at each of 2 speeds.
Estimate the equilibrium concentration of N2? For the nitrogen fixation reaction 3H2 (g) + N2(g) 2NH3(g), Kc =6.0 × 10-2 at 500°C if 0.250 M H2 and 0.050 M NH3 are present at equilibrium.
Assuming that the reaction SO2(g) + H2O(l)--> H2SO3(l)is quantitative, discuss how much sulfurous acid is produced when 100.0 g of sulfur dioxide are mixed with the 60.0 g of water?
An impure sample of Na3PO4 which is having 2.488g are dissolved in the water, and the PO43- ions are precipitated as Ca3(PO4)2, which is dried, filtered and found to weigh the 1.796 g. Calc