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Problem- During the expansion of 0.9704 mole of CO2 gas, the pressure decreased from 2.304 atm to 1.0 atm. What was the DS (J/K) of the process?
Illustrate structures to prove your interpretation.
A solution is made by mixing 52.1 g of propyl chloride, C3H7Cl, and 38.4 g of propyl bromide, C3H7Br. What is the vapor pressure of propyl chloride in the solution at 25°C? The vapor pressure of pure propyl chloride is 347 torr at 25°C
it is known that 1500 revolution are required for the 6000-ib flywheel to cost to rest from an velocity of 300 rpm.
If the molar concentration of sodium carbonate (Na2CO3) is 2.5 mM millimolar, explain what is the mass concentration of Na2CO3 in mg/L? For the same molar concentration, define what is the mass concentration of Na+
The measured cell voltage is 0.0841 V and the Pt | H2 | H+ half-cell is the cathode. Standard reduction potentials are given on the next page. (a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the p..
Kevlar is a strong synthetic fiber used in bullet proof vests and body armor. Kevlar is made by the condensation reaction between 1,4-phenylene-diamine and terephthaloyl chloride. Modify the monomers below to create one repeat unit of the polymer.
Provide a structure for the following compound: UV spectrum: ?max = 272 nm (? = 39,500); EI mass spectrum: m/z = 129 (molecular ion and base peak); IR: 2200, 970 cm-1;
Briefly explain the role played by the phase transfercatalyst in the oxidation Reaction performed on acetophenone. Explain why the reaction mixture was cooledbefore addition of the sodium metabisulfite
Question- 5.20 mol of Solid A was placed in a 1.00 L sealed container and allowed to decompose into gaseous B and C. The concentration of B steadily increased until it reached 1.40M, Where it remained constant.
helium has a density of 1.79 x 10-4 gml at standard temperature and pressure. a balloon has a volume of 6.3 liters.
When a sky diver free-falls through the air, the process is a. non-spontaneous because he is accelerating due to the force applied by gravity. b. non-spontaneous because he is losing potential energy. c non-spontaneous because he had planned the j..
A 32.0 g sample of liquid water at 21.0C absorbs 2276 J of heat energy. What will be the final temperature of the water? The specific heat of liquid water is 4.185 J/gC.
Explain what is the half-life of Ba-137m. Explain what fraction of activity remains after 6.25 minutes? (A=Aoe (-kt); k = .693/t1/2)
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