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Illustrate the resonance structure of the most stable carbocation intermediate possible that results from step 2 of an electrophilicaromatic substitution reaction when tert-butylbenzeneencounters bromine in the presence of iron(III) bromide.
Calculate the lower heating value of the Brookeville Seam coal with the analysis given below with 10, 20, 30, 40, and 50% moisture contents . Comment on the percentage of the heat loss based on the gross or high heating value of the fuel in using ..
If you wanted to prepare a 1.45 L buffer with a total phosphate concentration of 0.0500 M, how many grams of NaH2PO4 and Na2HPO4 would you mix together? How many grams of conjugate acid do you need? How many grams of conjugate base do you need?
if the pressure of chloroform vapor in a flask is 154 mm hg at 25.0degc and the density of the vapor is 1.25 gl what is
what is the pressure of 170. ml of oxygen gas at 76.0degc and 170. mm hg if the conditions are adjusted to 450. ml and
a) A 2.00 g sample of a gas SX6 has volume of 329.5 cm^3 at 1.00 atm and 20 C. WHat element is X. b) What is the density of carbon monoxide gas at 127 C and 763 mm Hg.
a reaction has an activation energy of 123 kjmol and a rate constant of 0.200 s-1 at 311k. at what temperature will the
under certain conditions the averagerate of appearance of oxygen gas in the reaction 2o3g --- 3o2gis .0012 atms-1. how
The hydrolysis of ethyl acetate (CH3COOC2H5) by sodium hydroxide yields ethanol (C2H5OH) and sodium acetate (NaO2CCH3) by the reaction shown
solution containing the iron(II) thiocyanate complex is 0.45, Then calculate the mile per liter concentration of the complex
Reaction A B proceeds with H = - 25 kJ×mol-1; S = - 100 J×K-1×mol-1. Substance A was taken at the initial concentration 2 mM. Determine the concentrations of A and B after the reaction reaches equilibrium. Assume T = 298 K.
When heated, calcium and hydroxide and ammonium chloride react to produce ammonia gas, water vapor, and solid calcium chloride. Suppose 5.00g of calcium hydroxide and 10.00g of ammonia chloride are mixed in a test tube and heated until no more amm..
A 31.5g wafer of pure gold initially at 69.3Celcius is submerged into 63.5g of water at 27.4 celcius in an insulated container. What is the final temperature of both substances at thermal equilibrium
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