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Gas chromatographic analysis of a mixture of organic compounds (GC-FID) gave the following results: hexane: 27%; heptane: 16%; hexanol: 18%; and toluene: 5%. The rests are solvent and impurities. a. Calculate the weight percent composition of the mixture (hexane, heptanes, hexanol, and toluene). b. Calculate the mole percent composition of the mixture.
mercury barometer with an inner diameter of 10.00 mm? Recall that the area of a circle is A = ? r2 and that 1 N = 1 kg m/s2.
Instructions are given to administer 65 mg of a diuretic over 2 hours by IV. If the 500mL bag contains 300mg what flow fate (ml per ohur) would be used?
Consider the decomposition of calcium carbonate. Assume that ?H° = 177.8 kJ/mol and ?S° = 160.5 J/K·mol for the temperature range. CaCO3(s) -> CaO(s) + CO2(g)
22.5ml of .383 molar H2SO4 is required to completely neutralize 20ml of KOH solution. What is the molarity of the KOH solution?
if the observed rate constant for the oxidation reaction at 35 C is 6.75*10^-2 min^-1, and at 25 C is 3.25*10^-2 min ^-1. what is the activation energy for the reaction
How many chemicaly different hydrogens are in: 4'-Aminoacetophenone; 3'-aminoacetophenone; benzoic acid; 3-toluic acid;1,4-dimethoxybenzene; and fluorenone? alson how would you do a predicted chemical shift and splitting pattern for those
What percentage of the Ca2 (aq) can be separated from the Ag (aq) by selective precipitation? hint: Ksp for Ag2SO4 is 1.20×10^-5 Ksp for CaSO4 is 4.93×10-5
Draw the structure of the bromohydrin formed when (E)-3-methyl-3-hexene reacts with Br2/H2O.
The mixture is cooled to the temperature of liquid nitrogen at which ammonia freezes out and the remaining gas is removed from the vessel. Upon warming the vessel to 0.00 degrees C and 1 atm , the volume is 74.0 cm^3 .Calculate the mole fraction o..
Which of the following statements are true regarding the liquid-liquid extraction performed in the synthesis of phenacetin. Note that there may be more than one correct answer. Dichloromethane is the bottom layer because it is more dense than water..
An atom of element number 33 (As) is in its ground electronic state. Which one of the following sets of quantum numbers could not apply to any of its electrons
When the following reaction is balanced in acid solution using the lowest possible whole number coefficients, the coefficient of Cl2(aq) will be: Cl-(aq) + MnO4-(aq) ---> Cl2(aq) + Mn2+(aq)
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