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A bottle at 285 K contains an ideal gas at a pressure of 155.7 x 103 Pa. The rubber stopper closing the bottle is removed. The gas expands adiabatically against Pexternal = 111.4 x 103 Pa, and some gas is expelled from the bottle in the process. When P=Pexternal, the stopper is quickly replaced. The gas remaining in the bottle slowly warms up to 285 K. What is the final pressure in the bottle for a monatomic gas, for which CV = 3R/2, and for a diatomic gas, for which CV = 5R/2?
Develop a crystal field splitting diagram for the following geometries by considering the crystal field generated by the ligands interacting with the d orbitals on the metal (ML2).
If Hg and 1.50g O2 are obtained from heating 56.0g HgO, what is the masspercent yield of O2 ? Hint work out the stoichiometry of the reaction first.
Consider a case where methyl tertiary butyl ether (MBTE) is to be added to the conventional gasoline. What percentage of MBTE would be required to achieve the 2.7
Compute the change in temperature when 1.8 g of sodium chloride is dissolved in 300.0 mL of water initially at 20C. The heat capacity of water is 4.184 J/mL/K.
A zero-order reaction has a constant rate of 1.90×10-4 . If after 40.0 seconds the concentration has dropped to 6.50×10-2 , what was the initial concentration?
How many milliliters of a 330 mL solution of 1.5 M Na3PO4 must be used to make 53 mL of a solution that has a concentration of .5 M PO43-?
A lungful of air (500 mL) contains 4.1% CO2 by volume. How many grams of KO2(s) is needed to remove the CO2 from a lungful of air at STP according to the following reaction?
If a student determined that the circumference of a balloon filled by the boiling point of liquid nitrogen was 45 cm, what volume of nitrogen gas has been generated?
If the walls in a room are 955 square feet in area, and a gallon of paint covers 15 square yards, how many gallons of paint are needed for the room?
Compute the pH if NaOH solution of the 10.00 mL has been mixed. pKa of HCOOH = 3.74
In order to separate 261 mg of the sample with similar separation of the components, what size column, diameter and length, should be used? And what volume flow rate should be used?
A compound containing only C, H, and O, was extracted from the bark of the sassafras tree. the combustion of 88.5 mg produced 241 mg of CO2 and 49.2 mg of H2O. the molar mass of the compound was 162 g/mol.
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