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Trichloroethane is the active ingredient in aerosols that claim to stain-proof men's ties. Trichloroethane has a vapor pressure of 100.0 mm Hg at 20.0 C and boils at 74.1 C. An uncovered cup (1/2 pint) of trichloroethane (d=1.325 g/mL) is kept in an 18-ft3 refrigerator at 39 F. What percentage (by mass) of trichloroethane is left as a liquid when equilibrium is established?
What will have the highest Rf value and which will have the lowest out of naphthalene (non polar), butyric acid (polar), and phenyl acetate (slightly polar) when developed on a silica gel TLC plate using benzene as the mobile phase
Which of the following equations represents the proper net ionic equation for the complete neutralization reaction between the strong base KOH (aq) and the weak acid HF (aq)
Which separation technique do you think will be fastest, flash chromatography or chromatotron. Explain.
In the catalytic converter of an automobile exhaust system, some SO2 is converted to SO3 by the reactionSO2(g) + ½ O2(g) ? SO3(g)
A helium balloon is filled to a volume of 2.5 L at atmospheric pressure. If the balloon is placed inside a sealed container and the pressure is reduced to 455 torr.
When there are branches in either the acid or the alcohol, how do you name the ester formed from the reaction of these two? For example,
If a vessel containing NO2 has an initial concentration of 2.8 x 10-2 mol/L, how long will it take for 75 of the NO2 to decompose? The decomposition of NO2 is second order in the reactant and the rate constant is 1.1 L/mol x s.
During the preparation of a solution, a solute is dissolved in a volume of solvent smaller than the desired volume of solution. Subsequently, solvent is added until the final volume of solution is reached
A mixture of twenty five grams of potassium nitrate(KNO3) and two grams of CuSO4*5H20 with 11.5 grams of water at 100 degree celcius temperature, 15 g ramsof water are mixed.
Suppose that you wanted to be sure that a metal ion, any metal ion, would dissolve in water. What salt of the metal ion compound would you choose
A mixture of 0.156 moles of C is reacted with 0.117 moles of O2 in a sealed 10.0L vessel at 500.K, producing a mixture of CO and CO2. The total pressure is 0.640 atm. What is the partial pressure of CO
What is the minimum uncertainty in the position of a hydrogen atom in a particle accelerator given that its speed
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