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A chemist prepared a sealed tube with 0.85 atm of PCl5 at 500 K. The pressure increased as the gaseous reaction PCl5 1 PCl3 +Cl2 occurred. When equilibrium was achieved, the pressure in the tube had increased to 1.25 atm. Calculate Kp.
Given a pure preparation of these algae, and the required supplies and equipment, devise and outline an empirical procedure for purifying Enzyme X.
calculate the concentration in mol/L and mg/L of a solution prepared by adding 4.00 mL of a 8.26 x 10^-4M stock solution of Allura Red to a 100.00 mL volumetric flask and then filling to the mark with DI water.
On the assumption that the debye-Huckel limiting law applies, what is the value of the solubility product equilibrium constant Ksp for AgCl in such conditions?
What mass of propane gas, C3H8, will occupy 860. mL at 880. mm Hg and 81.0°C?
At 212 mm Hg and 24 °C, a sample of gas occupies a volume of 125 mL. The volume is increased to 325 mL and the temperature is reduced to -5.0 °C. What is the final pressure of the gas in the flask?
A student mixes 5.0 mL 2.00 x 10-3 M Fe(NO3)3 with 4.0 mL 2.00 x l0-3 M KSCN, and 1.0mL deionized water. She finds that in the equilibrium mixture the concentration of FeSCN2+ is 1.2 x l0-4 M.
You are told to buy 5 packages of deli turkey, 3 loaves of bread and one jar of pickles. Our question is: how many sandwiches can we make?
When 25.0 mL of 0.750 M CdCl2 is mixed with 40.0 mL of 0.120 M (NH4)2S, CdS precipitates from the solution. How many moles of CdS is formed.
Draw all stereoisomers having molecular formula C6H12 that contain one double bond and give the IUPAC name for each compound.
Show the expected stepwise mechanism for the photochemical monochlorination of cyclohexane. Label the initiation, chain propagation
When isobutylene (CH3 - C=CH2) is treated with acid, two products result: 2, 4, 4-trimethyl-2-pentene and 2,4,4-trimethyl-1-pentene
A certain sample of the mineral galena weighs 12.4 and has a volume of 1.64 mL. What is the density of galena?
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