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What is the vapor pressure at 100 C of a solution containing 1.68g of sucrose (mol weight = 342.30) and 15.6 g of water (mol weight = 18.02)?
The concentration which remains after 20 minutes is 80 mg/L. Determine the reaction order and the rate constant (with appropriate units).
Calculate the mass in grams for a sample of aluminum that absorbs 1.85 when its temperature rises from 65 to 178.
How many grams of methanol must be added to 7.50 kg of water to lower its freezing point to -13.0 degrees C? For each mole of solute, the freezing point of 1 kg of water is lowered 1.86 degrees Celsius.
Explain the large disparity in the numerical results pf Part (a). Discuss the advantages and disadvantages of the three energy sources.
Apart from the discrete energy values characteristic of a quantum mechanical system, is the result of an invidvidual measurement of the total energy identical to the result obtained on a classical system?
Calculate the heat evolved in kilojoules by the formation of the solution. Calculate the heat evoled per mole of sulfuric acid. Use n(changeH) = -(mCchangeT)
In the Hofmann Degradation of amines an amine is exhaustively methylated with Methyl Iodide and the resultant compound treated with Silver Hydroxide and heated. An alkene is formed which is not the Saytzeff product.
Calculate the pH at the equivalence point for the titration of 0.230 M methylamine (CH3NH2) with 0.230 M HCl.
Calculate the initial rate of the NO reduction at 1100 K if 400.00 mg of NO and 600.00 mg of H2 are confined to a 5.00 L reaction vessel.
Chemicals available for extractions: CH2CL2, 1M NaOH, 1M HCL and sodium sulfate for drying, Chemicals available for crystallization: ethyl ether, 95% ethanol, methanol, isopropyl alcohol, acetone, hexane, toluene and methylene chloride.
A 14.0-g sample of CaCl2 is dissolved in 112 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C ..
How is acetyl chloride produced? If 915 gallons is produced and shipped, will DOT require the carrier to display the flammable placard? Explain your answer.
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