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For the second-order reaction A+B?Products, the rate of reaction r, may be written asr= dx/dt=k([A] 0 -X) ([B] 0 +X)
X is the decrease in concentration of A or B as a result of the reaction. What are the condition for the rate to be a maximum for the rate to be a maximum or a minimum? Draw a graph of r against X, and noting that r and X can not to be negative, identify the portion of curve that corresponds to reality.
The isolated (S)-(-)-enantiomer was distilled in vacuum to give 1.5 g of pure amine. Calculate the yield of (S)-(-)-alpha-methylbenzylamine.
What mass of this substance must evaporate in order to freeze 170 of water initially at 23? (The heat of fusion of water is 334 the specific heat of water is 4.18 .
Calculate the terminal velocity of particles with a density of 1.3 g/cm3 and a diameter of 250 microns falling through water at 200 C
For 460.0mL of a buffer solution that is 0.130M in HC2H3O2 and 0.120M in NaC2H3O2, calculate the initial pH and the final pH after adding 0.010mol of HCl.
Problem- The starship enterprise is caught ni a time warp and Mr. Spock is forced to use the primitive technique of the 21st century to power the spaceship. He foolishly decides to generate heat energy by diluting pure sulfuric acid with water to ..
Calcium nitrate will react with ammonium chloride at slightlyelevated temperatures, as represented in the equation- Ca(NO3)2(s) +2NH4Cl(s) 2N2O(g) +CaCl2(s) + 4H2O(g)
The atom then emits two photons: one of wavelength 3174 nm to reach an intermediate level, and a second to reach the ground state. What was the wavelength of the second photon emitted
A student wrongly added 12 M HCl to a sample of unknown instead of 6 M HCl. At first a. large amount of light color precipitate formed however some dissolved on further addition of concentrated HCl. State an equation for the reaction that might oc..
At what temperature would CO2 molecules have an rms speed equal to that of H2 molecules at 25 degrees C?
The refinery operations and processes also directly and indirectly generate liquid mixtures of water and petroleum oils and related organic solvents.
A gas sample has an original volume of 650 ml when collected at 750 mm and 30°C. If a change is made in the gas temperature which causes the volume of the gas sample to become 800 ml at 1.00 atm, what is the new temperature
if the rate law for a reaction is rate ka2ba. what is the overall order of the reaction?b. if the concentration of a
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