How long must wait until of xe(cf3)2 remains
The compound Xe(CF3)2 decomposes in a 1st order reaction to elemental Xe with ahalf-life of 30. min at room temperature. If you place 7>50 mg of Xe(CF3)2 into a flask, how long must you wait until only 0.25 mg of Xe(CF3)2 remains?
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Calculate the molecular mass of the nonionic solutes: 8.02 g of solute in 861 g of water lower the freezing point to -0.430 degrees C.
Calculate the final temperature of the mixture assuming no heat loss to the surroundings. The heat capacities of H2O(s) and H2O(l) are 2.08 and 4.18 J/g · °C, respectively
An equal tangent vertical curve is to be constructed between grades of -2.0% (initial) and 1.0% (final) .The PVI is at station 3+352.8 and the elevation 128.016m
The concentration of cholesterol in the blood serum of a normal adult is approx 200mg/dL. How many grams of cholesterol does a person with a blood volume of 5.75L have circulating in his or her blood?
If you place 7>50 mg of Xe(CF3)2 into a flask, how long must you wait until only 0.25 mg of Xe(CF3)2 remains?
Two streams discharge into a pipe as shown flows are incompressible. the volume flow rate of streams into the pipe is given by QA=0.02t m3/s and that of stream B by QB=0.008t2 m3/s, where t is in seconds.
A steel cylinder holds 1.60 g of ethanol, C2H5OH. What is the pressure of the ethanol vapor if the cylinder has a volume of 244 cm3 and the temperature is 250°C?
Calculate the molar mass of the biomolecule. For carbon tetrachloride, the boiling point constant is 5.03°C · kg/mol, and the boiling point of pure carbon tetrachloride is 76.50°C.
A symmetric compound channel in over bank flow has a main channel with a bottom width of 30 m, side slopes of 1:1, and a flow depth of 3m.
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