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A mixture between CCl4 along with CS2 is a regular solution with a beta-parameter of +7500 J/mol. At 298K these two liquids are somewhat miscible the mixture separates into two phases. Utilize a graphing calculator to compute the mole fraction of CCl4 in CS2 phase at 298K and then again at 375k.
If 27.0 mL of 0.0200 M KMnO4 were required to titrate a 0.425 g sample of K3[Fe(C2O4)3] * 3H2O, what is the % purity of the complex
An unknown gas that occupies 1.00 L at a pressure of 534 torr and a temperature of 295.7 K weighs 0.9847 g. What is the molecular mass of this gas
The hydrogen gas generated is collected over water at 25.0°C. The volume of the gas is 295 mL measured at 1.00 atm. Calculate the number of grams of sodium used in the reaction. (Vapor pressure of water at 25°C = 0.0313 atm.)
in the titration of 25.00ml of 0.100M CH3COOH, calculate the number of milliliters of 0.200 M NaOH that must be added to reach a pH of a)3.85, b) 5.25,
Calculate thechemical potential of ethanol in solution relative to that of pureethanol when its mole fraction is 0.40 at its boiling point(78.3oC)
A solution is prepared by dissolving 30.0 g of Na2SO4 in enough water to make 750.0 mL of solution. A 10.00 mL portion of this solution is then diluted to a final volume of 100.0 mL.
Choose the selection which lists the following substances in order of increasing boiling point (lowest boiling substance listed first)
What is the minimum volume of 2.85 mol/L HCl(aq) required to dissolve 12.1 g Zn metal? The atomic weight of Zn is 65.39 g/mol. The unbalanced chemical equation for the reaction is Zn(s) + HCl(aq) --> ZnCl2(aq) + H2(g)
in a reaction between pure acetic acid and sodium bicarbonate 26.6 grams of sodium bicarbonate was added to 12.0 ml of
water is pumped into a storage tank from a well delivering 15.0 gallons of water in 34.0 seconds through a pipe of 1.00
If 17.0 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ammonia?
Calculate the standard molar enthalpy of formation ?H°f of N2H4(g) from the following information: N2(g) + 2H2(g) ? N2H4(l) ?H°rxn = +50.6 kJ N2H4(g) ? N2H4(l) ?H°rxn = -44.8 kJ A. +5.8 kJ/mol B. +95.4 kJ/mol C. +47.7 kJ/mol D. -95.4 kJ/mol E. -5...
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