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At t=0 butadiene was introduced into an empty vessel at 326 degree celsius and the gas phase dimerization reaction was followed at constant volume by monitoring the pressure P. find the reaction order using a Powell plot or the fractional-life method and also estimate the rate constant if The following data were obtained (1ks=10^3 s): t/ks 0.000 0.367 0.731 1.038 1.751 2.550 3.625 5.403 7.140 10.600P/torr 632.0 606.6 584.2 567.3 535.4 509.3 482.8 453.8 453.3 432.8
The tire is filled with dry air at sea level and a temperature of 60 degree F to 32 lb/square inch.standard sea level pressure is 101325 Pa at 0 degree C (STP).
Discuss how to find the molar mass of a compound, percent composition of the elements of a compound and how to determine the empirical and molecular formulas from percent composition.
Assume that you have a cylinder with a movable piston. What would happen to the gas pressure inside the cylinder if you do the following? Decrease the volume to one third the original volume while holding the temperature constant.
Describe how biological membranes are organized: what roles do lipids and proteins play in this organization
Calculate the rate constant of the catalyzed and uncatalyzed reactions. How many folds of rate enhancement are produced by the enzyme? The rate constant is 13.46 but what is the nuber of folds of enhancement that are produced by the enzyme?
Calculate the solubility of Ca(OH)2 in a 0.469M CaCl2 solution at 31°C, given that the Ksp of Ca(OH)2 is 4.96 x 10-6 at that temperature. Give your answer in milli Molar units
In trans-1,2-dibenzoylethylene, even though the conjugated C=O group frequency coincides directly with the expected C=C stretching frequency, we would not have expected to observe the latter stretching mode in the infrared spectrum. Why
Hardness in groundwater is due to the presence of metal ions, primarily Mg2 and Ca2 . Hardness is generally reported as ppm CaCO3 or mmol/L Ca2
explain the relationship between common phases solid liquid and gas. and vapor pressurewhat ion will attract a h2o
A patient's blood test shows that she has elevated levels of LDL (low density lipoproteins) at 4.12 mmol/L. Convert this concentration to units of molarity (mol/L)
Write a chemical equation describing the condensation process for CO2 and a chemical equation describing the freezing
The ground water in Pherric, New Mexico contains 1.80 mg/L of iron as Fe+3. What pH is required to precipitate all but 0.30 mg/L of the iron as Fe(OH)3 at 25oC?
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