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A system of propane and n-butane exists in two phase vapor / liquid equilibrium at 10 bar and 323 K. The mole fraction of propane in the vapor phase is 0.67 and 0.40 in the liquid phase. Additional pure propane is added to the system and the system is brought again to equilibrium at 10 bar and 323 K. What is the effect of the propane addition on the mole fractions of propane in the vapor and liquid phases?
Write the balanced neutralization reaction between H2SO4 and KOH in aqueous solution. Phases are optional.
A galvanic cell is constructed that has a zinc anode immersed in a Zn(NO3)2 solution and a platinum cathode immersed in an NaCl solution equilibrated with Cl2 gas at 1 atm and 25 degrees centigrade.
A 500.0 mL sample of 0.200 M sodium phosphate is mixed with 400.0 mL of 0.237 M barium chloride. what is the mass of the solid produced
A canister is filled with 310 g of ice and 100 g. of liquid water, both at 0 C . The canister is placed in an oven until all the has boiled off and the canister is empty.
A skyscraper in Pittsburg, built in the early 1970's, is supported by water filled columns. Potassium carbonate was added to the water to precent freezing during cold weather. If the solution is 40.0% K2CO3 by mass, what is the predicted freezing ..
Make the best match for each efficiency advantage to one mechanism for organizing enzymes in metabolic pathways. A. soluble enzymes in a lipid-enclosed volume
What is the density of a block of marble that occupies 253 cm and has a mass of 752 g? Answer in units of g/cm
how long will it take for the concentration of A to decrease from 1.0 M to 0.25 M? If [Bo] = 1.5 M, what will be the concentration once [A] = 0.25 M?
What weight of A would be removed from a solution of 10g of A in 100mL of water by a single extraction with 100 mL of hexanes? What weight of A would be removed by four successive extraction with 25-mL portions of hexanes?
3.00 moles of Helium gas at 25.0 degrees C and 744 mmHg will occupy what volume A)67.2L B)75.0L C)22.4 L D)6.16 L E)6.03 L
use curved arrows to show the flow of electrons in each step, and note any relevant charges or lone pairs of electrons.
Solid benzoic acid, C6H5COOH(s), is often used to determine the heat capacity of a bomb calorimeter, because the constant volume heat of combustion of this compound is known with high precision: qV = ?26.434 kJ/g. When a 2.088 g sample of C6H5COOH..
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