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a flask is charged with 2.00 atm of nitrogen dioxide and 1.00 atm of dinitrogen tetroxide at 25 degrees celsius and allowed to reach equilibrium.when equilibrium is established, the partial pressure of NO2 has decreased by 1.24 atm.
(a) what are the partial pressures of NO2 and N2O4 at equilibrium.
(b) calculate kp and kc for the following reaction at 25 degrees celsius 2 NO2(g) + N2O4(g)(a reversible reaction)
Given a buret filled with 0.12 M acetic acid and a second buret filled with 0.18 M sodium acetate, how many milliliters of each solution should be mixed together to produce 20.5 mL of a solution with a pH of 4.90?
The products were collected and had the following masses: CO2: 1.707 g N2: 0.136 g H2O: 0.7859 g For this compound (CaHbOcNd) what are the integers a,b,c and d in the empirical formula
calculate the absorbance of a solution containing 3.70×10-5 M R and 5.64×10-4 M Q at 560 nm. Assume 1.00 cm cells for all data given.
Take frequencies from sections on absorptions of selected functional groups in the text. If a functional group is not discussed specifically, use frequencies from Which compound will exhibit this absorption?
Each student recorded the temperature change and calculated the enthalpy of neutralization. Identify the student who observes a temperature change that will be different from that observed by the other two chemists. Explain why and how (higher or ..
Supposed you have a beaker of water that is being heated on a hot plate. If you are studying the amount of heat that is requred to change the water temperature by a certin amount. What is a reasonable choice for the system and surroundings?
The Cd2 was displaced from EDTA by the addition of an excess of CN-. Titration of the newly freed EDTA required 25.5 mL of 0.0250 M Ca2 . What were the molarities of Cd2 and Mn2 in the original solution
What wieght of glycine (pka1=2.4, pka2=9.6) and what volume of 0.5 N(normality) HCl would be necessary to make 100 mL of 0.2 M buffer pH 2.4?
Doubling the distance between an individual and the source of radiation reduces the radiation exposure to one-fourth the original value.
Draw the complete Lewis Dot Structure, and identify for each molecule the shape, the hybridization on the central atom
The pressure is changed to 8.75 atm and the gas is cooled to 15 C. Calculate the new volume of the gas using the ideal gas equation.
After a 5% HCl extraction of an ether solution, that initially contains dissolved carboxylic acid and amide, what component(s) would be found in the aqueous layer
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