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Ammonium chloride is placed in a closed vessel as well as allowed to come to equilibrium according to the equation- NH4Cl(s)↔NH3(g) + HCl(g). If the Kp for the system at 200oC is 0.25, Explain what is the pressure inside the vessel?
a fluorinated organic gas in a cylinder is compressed from an initial volume of 960 ml at 158 pa to 478 ml at the same
Using Thermodynamic data from your notes, calculate the change in Gibbs free energy for each of the following reactions using Gf's. In each case indicate whether the reaction is spontaneous under standard conditions.
Compute the concentration of the lycopene solution in the spectrophotometer cell before isomerization, given that the molar absorptive of lycopene at 471nm is 1.86 x 10^4
Calculate the following for an oil (MW=169g/mol) that distills during steam distillation at a boiling temperature of 98°C at 1atm of pressure. A) The mass of the oil that codistills with each one gram of water at 98°C
A student heated 1.0L of ethanol (density 0.789 g/L) with 1.0 mL ethanoic acid (density 1.049 g/mL) with a sulfiric acid catalyst and noticed a vinegar-like smell to the product as well as a fruity medicinal smell.
Find the of % Nickel in the coin solution: molarity of Nickel is .8469 density of coin solution as 1.00g/mL
It takes 42 min for the concentration of a reactant in the first order reaction to drop from .45 M to .32 M at 25 degrees celcius. How long will it take for the reaction to be 90% complete.
if a reation vessel contains .25 mol KO2 AND .15 mol H2O, what is the limiting reactant ? How many moles of oxygen can be formed ?
The kinetics of decomposition of dinitrogen pentaoxide is studied at 50 degrees C and at 75 degrees C. Which of the following statements concerning the studies is correct
If the original activity of a radioactive substance was 2.00 Ci and later the activity was measured to be 9.25x10^9 Bq, how many half-lives have passed
Identical containers Ar, CO2, He, and Cl2 at the same temperature and pressure. Which has the lowest density?
Calculate the pH of 100. mL of 0.28 M NH3 before and after the addition of 4.5 g of NH4NO3, and account for the change. Assume that the volume remains constant. What is the pH before and after the addition of NH4NO3
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