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Question: In an experiment, 25.0 mL of a gas with a pressure of 1.00 atm is contained in a balloon at 25.0 oC. The balloon is then cooled to 5.0 oC, and the pressure is found to be 0.750 atm. What is the volume of the gas under the new conditions?
A mixture consisting of 50 grams ethanol and 50 grams water is distilled using an efficient column. How much water will remain in the distillation flask the instant all of the azeotrope has distilled?
Calculate the number of moles and the number of grams of the indicated solutes present in each of the following solution samples.
At room temp, triphenylaluminum is a dimer while triphenyl boron is a monomer.
The activatoin energy for the diffusion of copper in silver is 193,000 J/mol. Calculate the diffusion coefficient at 1200 K (927 degrees C), given that D at 1000 K (727 degrees C) is 1.0 x 10^-14 m^2/s
Explain the factors that lead to the third mode being such a poor group frequency. Predict the location in the spectrum of the third fundamental.
If your body develops a charge of -11 (microcoulombs), how many excess electrons has it acquired
draw an energy diagram that explains why pyridine is a better nucleophile and leaving group in the following
A trayed column is used to recover acrylic acid and acetic acid from a dilute gas stream by absorption in water. At the same vapor concentration, acrylic acid is about two times as soluble as acetic acid in water
A chemist dissolves 0.151g of pure perchloric acid in enough water to make up 0.370L of solution. Calculate the pH of the solution. Be sure your answer has the correct number of significant digits.
A voltaic cell consists of an Mn/Mn2+ half-cell and a Pb/Pb2+ half-cell. Calculate [Pb2+] when [Mn2+] is 2.7 M and Ecell = 0.37 V.
The term solution is synonymous with which of the following. A. compound B. element C. homogeneous mixture D. heterogeneous mixture
at a particular temperature k 4.0 x 10-7 for the reaction n2o4g ---gt 2no2g. in an experiment 1.0 mol n2o4 is placed
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