Chemistry

Chemistry, 08.07.2019 06:30, pravikumar01

What is the chemical composition of the mobile phase in this experiment?

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Chemistry, 13.07.2019 18:10, emilyharper

More than one reaction consider the following two gas-phase reactions a+ b= 0 2c=d (a) what are the two equilibrium equations relating the two unknown extents of reaction and the initial gas-phase compositions? you can assume the pressure is low enough that the gases are ideal. (b) what is the equilibrium gas-phase composition at 2.0 atm total pressure given initial gas-phase composition ya = ye = 0.5, y = y = 0, and ki - 1.0. k2 = 2.57 solve the two nonlinear equations numerically. if a computer is not available, you can use trial and error (partial ya - 0.31). (c) what is the equilibrium gas-phase composition at 2.0 atm total pressure given initial gas-phase composition ya - yc = 0.5, y yd 0

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Chemistry, 18.09.2019 01:00, julio38

Apiece of chromatography paper is spotted with a solution containing iron chloride and nickel chloride. suppose that the chemical affinity of fe3+ for the stationary phase is less than that of ni2+, while the chemical affinity of fe3+ for the mobile phase is greater than that of ni2+. which cation will travel farther at the completion of the chromatography experiment? which cation will have the larger r value?

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Chemistry, 23.10.2019 18:00, keyonnaallen2004

In tlc lab when you separated spinach pigments’, in previous years most sections found 45: 55 acetone: hexanes mobile phase composition to give the best results. in column chromatography, the best mobile phase turned out to be 40: 60 or 35: 65 acetone: hexanes. what is the reason that the exact mobile phase composition from tlc does not give the best separation in column chromatography? explain (4 pts)

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