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Nitrogen is collected over water at 21 degrees Celsius vapor pressure of water is equal to 2.5 kPa. Explain what is the partial pressure of nitrogen if the atmospheric pressure is 99.4 kPa?
Using graphical techniques, calculate the equilibrium pH and the equilibrium concentrations of all the dissolved species for a 10^-3 M (NH4)2CO3 solution.
What is the Ka of the amino acid glutamine if it is 33.0% dissociated at pH = 8.82
An X-ray photon of wavelength 0.962nm strikes a surface. The emitted electron has a kinetic energy of 944eV. Find binding energy.
One thousand kg/h of an ethanol/methanol stream is to be separated in a distillation column. The feed has 40% ethanol and the distillate has 90% methanol. Eighty percent of the methanol is to be recovered as distillate. Determine the % methanol in ..
a couple of drops of water were accidentally placed on the properly folded filter paper before its mass was measured.
How many Joules are required to heat 2 L of water in a pot from 20 degree C to the boiling point of water? The specific heat of water is 4.18 J/g. Degree C and the density of water is 1 g/mL
One drop of 1N HCl is added to the stirred solution which is heated in a boiling water bath for 5 minutes. on cooling a precipitate is deposited which is collected and recrystallized in absolute alcohol. What is the product of this reaction
2 nh3g co2g --gt h2nconh2s h2ogammonia gas at 223degc and 90. atm flows into a reactor at a rate of 550. lmin. carbon
Based on your knowledge of the TLC of the components of Excedrin, propose an experiment that would separate these components, including the order of elution off a chromatography column.
Use the following information to answer question 15.4.1 and 15.4.2: Kc for the is 1.7 X 10^-2 at 250 degrees celsium what will the equilibrium concentrations of A, B, and C be at this temperature if [A]i = [B]i = 0.750 M 9[C]i =0
A compound of molecular weight 280 g/mol a concentration of 15.0 micrograms per ml absorbs 65 percent of radiation at a certain wavelength in a 2 cm cell.
It is known that three complex ions of chromium (III) were commonly used in that lab: [Cr(H20)6]3+, [Cr(NH3)6]3+, and [Cr(H20)4Cl2]+. Determine the likely identity of each of the solutions.
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