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The kinetics of decomposition of dinitrogen pentaoxide is studied at 50 degrees C and at 75 degrees C. Which of the following statements concerning the studies is correct?
A. The rate at 75 will be greater thatn the rate at 50 because the activation energy will be lower at 75.
B. The rate at 75 will be greater thant the rate at 50 because the activation energy will be higher at 75.
C. The rate at 75 will be less than the rate at 50 because the molecules at higher speeds do not interact as well as those at lower speeds.
D. The rate at 75 will be greater than at 50 because the concentration of a gas increases with increasing temp.
E. The rate at 75 will be greater than the rate at 50 because the number of molecules with enought energy to react increases with increasing temp.
The density of air at ordinary atmospheric pressure and 25 0C is 1.19 g/L. What is the mass of air, in kg, in a room that measures 12.5 ft by 15.5 ft by 8.0 ft?
Draw the Lewis structure of the molecule, assuming that the Cl atoms bond to a single C atom and that there is a C -C bond and two C - O bonds in the compound.
At a particular temperature, K 3.75 for the reaction SO2(g) + NO2(g) SO3(g) + NO(g) If all four gases had initial concentrations of 0.800 M
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Many carbohydrate linkages are cleaved by hydrolytic enzymes, which is different from glycogen phosphorylase that uses phosphorolysis. There are two acceptable mechanisms for hydrolysis of the glycosidic bonds
The energy of a photon is 9.61 x 10 ^ -20 J . What is its wavelenght( in nanometers)? Enter your answer in scientific notation
A mixture of CO, CO2 and O2 is contained within a 275 mL flask at 0C. If the total pressure is 780 torr, the CO has a partial pressure of 330 torr and the CO2 has a partial pressure of 330 torr, what is the partial pressure of O2?
calculate the amount of sodium nitrate in mg in one liter if 3.8mg of nitrate was detected in one liter of water.
What is the density of a block of unknown material with a mass of 18.63-g if the dimensions are.
How many liters of N2 (at STP) form when 1.0 kg of N2H4 react with 1.0 kg of O2?
A solution of phosphoric acid was made by dissolving 10 g of H3PO4 in 100 ml of water. The resulting volume was 104 mL. Calculate the density, mole fraction, molarity, and molality of the solution. Assume water has a density of 1.00 g/cm3
The Kal of this aid is 1.0 x 10^-10 and Ka2 is 1.0 x 10^-10. Calculate the concentration of A2- in this solution.
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