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1. The rate constant for the following equation is 0.0391 M-1 · s-1. We start with 0.238 mol C2F4 in a 4.00-liter container, with no C4F8 initially present. 2C2F4 ?C4F8. What will be the concentration of C2F4 after 2.00 hours.
2. What will be the concentration of C4F8 after 2.00 hours? Note that this is the PRODUCT of the reaction.
In order to maximize topographic contrast in SEM, would you use backscattered or secondary electron detector? Explain.
Assuming the pressure and temperature of the gas remain constant, calculate the number of moles of gas added to the container.
Two solutions of an unknown slightly soluble salt, A(OH)2, were allowed to equilibriate- one at 25 degrees C, the other at 80 degrees C. A 15 mL aliquot of each solution is tiotrated with .200 M HCl. 8 mL of the acid is required to reach the endpo..
the vapor pressure of pure methyl alcohol at 19?c is 90.0 torr and that of pure ethyl alcohol is 40.0 torr. assume a
Acetylene gas (C2H2) is produced by adding water to Calcium carbide CaC2. How many grams of acetylene are produced by adding water to 5g CaC2?
Which of the following statements is true regarding chiral carbons with R configuration? a. plane polarized light is rotated clockwise b. plane polarized light is rotated counterclockwise
why is a solution containing dissolved brass made basic with concentrated NH3 and again with acidified CH3COOH?
A water carbonating plant operates by providing carbon dioxide at 5.0 atm. Estimate the molar concentration of CO2 in carbonated water it produces at 25 ºC.
A plane wall is constructed of a material having a thermal conductivity that varies with the square of the temperature according to the relation k=k0(1+βT2). Derive an expression for the heat transfer in such a wall.
There are 2.2 mg of lead in exactly 500 g of a water sample. What would the concentration of lead be in parts per million.
A sample of K2S contains 1.35 g of potassium. How many moles of potassium sulfide are present in the sample
A hiker caught in a thunderstorm loses heat when her clothing becomes wet. She is packing emergency rations that, if completely metabolized, will release 30 kJ of heat per gram of rations consumed.
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