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In point form, what is the procedure for extraction to separate a mixture of benzoic acid and 2-naphthol and to isolate each compound. Include observations and conclusions for each step. If an unknown acid was imcompletely extracted from the ether solution into the aqueous layer in this experiment, would the experimentally measured melting point value of benzophenone be affected? Why or why not?
For a certain glass electrode, the selectivity coefficient for Na+ relative to H+ is 1.0 x 10-12. The electrode is calibrated with NBS standard buffers 6.86 and 9.18,
An unknown gas composed of a diatomic molecule effuses at a rate that is only 0.355 times as fast as that of oxygen gas at the same temperature.
What mass of water (in g) would need to evaporate from your skin in order to dissipate 0.8 x 10 5 J of heat from your body?
Without including them in the electronic configuration, please say how many valence electrons are in Mo2+, Pb2+, Cr3+ and Ag+. just a bit confuse with what shells are the outer ones
How many grams of carbon dioxide (CO2) can form when a mixture of 4.95 g of ethylene (C2H4) and 3.25 g of oxygen is ignited. Assume complete combustion to CO2 and H2O.
A 126 piece of metal is heated to 285 and dropped into 83.0 of water at 26. If the final temperature of the water and metal is 58.3.
compute the energy levels for the rotation perpendicular to its symmetry axis at J=1. T he bond length in the 14NH 3 =101.2 pm and NHN bond angle 106
Butane C4H10, is a component of natural gas that is used for cigarette lighters. The balanced equation of the complete combustion of butane is
C and dropped into a calorimeter containing water (specific heat capacity 4.18 J/ g C) initially at 20.2deg C. The final temperature of the water is 33.7 deg C. Caluclate the mass of water in the calorimeter.
Determine the stiochiometric coefficients for the reaction, (3CaO Al2O3 3SiO2) + a(CaO Al2O3 SiO2)= b(CaO Al2O3 2SiO2) + c(2CaO Al2O3 SiO2)
the concentrations in this system were found to be [N2]=[O2]=0.100 M and [NO]=0.500 M. N2(g)+O2(g)2NO(g) If more NO is added, bringing its concentration to 0.800 M, what will the final concentration of NO be after equilibrium is re-established?
Calculate the equilibrium partial pressure of bromine gas. No approximations can be made because the equilibrium constant is too large.
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