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At beginning of the work up stage of the lab procedure, the two phase reaction mixture probably contains the following:triphenylmethanolbiphenyl (by-product)etherbromobenzenebenzophenoneH2O, H3O+, Mg2+, Cl-, Br-, (from HCl, MgBrCl)MgBenzene (trace by-product)Prepare a schematic diagram if the work-up and purification procedure.
The acid-dissociation constant for an acid-base indicator HIn is 0.0000438. At 600 nm, the molar absorptivities are 2230 for HIn and 8900 for In-. Calculate the absorbance at 600 nm of a 1.00 x 10-4 M solution of the indicator at pH 4.81 in a 1.00..
A biochemist studying the break down of insecticide DDT finds that it decomposes by a first-order reaction w/ a half-life of 12 years. How long does it take DDT in the soil sample to decompose from 705 ppbm to 10
The compound butane consists of only C and H. If 0.531g of butane is burned in oxygen and produces 1.61g of CO2 and 0.823g of H2O, what is the empirical formula of butane
Draw the Fischer projection of the enantiomer of (4S, 5S)-5-sec-butyl-4-(1,1-difluoromethyl)nonane
Write an overall, balanced equation for the reaction of Na2SO3 with CH3CO2H, and name the reactants and products.
The minimum energy needed to eject an electron from a sodium atom is 4.41 X 10^-19. What is the maximum wavelength of light, in nanometers, that will show a photoelectric effect with sodium?
The specific heat of silver is 0.235 J/g·K. Its melting point is 962°C, and its heat of fusion is 11.3 kJ/mol. What quantity of heat, in joules, is required to change 7.50 g of silver from solid at 25°C to liquid at 962°C?
from the ratio of the mass of the black product to the initial 5g placed in the flask could the remaining black
When no single electronic formula can be drawn for a stable molecule so as to maintain the octet rule and still fit the observed properties
If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the structure that could be abbreviated as XY2Z2.
What mass of LP gas is necessary to heat 1.3 of water from room temperature (25.0 ) to boiling (100.0 )? Assume that during heating, 16% of the heat emitted by the LP gas combustion goes to heat the water.
What is the cell potential when the solutions are altered, so [Ag+] = 1.25 M and [Cu+]= 0.25M
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