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The rate equation for the decomposition of N2)5 ( giving NO2 and O2) is Rate = K[N2O5]. The value of K is 6.7 x 10-5 s-1 for the reaction. A. calculate the half life of N2O5 and B. how long does it take for the N2O5 concentration to drop one tenth of its original value. * I believe the half life is 10,000 seconds for part A. But I am having trouble with part B.
A process stream has 100 g/L NaCl in H2O. Prior to adding this to a batch bioreactor, the concentration must be reduced to 154 mM. The specific gravity of the solution is 1.075 at 20°C.
The density of aluminum is 2.70 g/cm3 and the density of chromium, is 7.19 g/cm3. If equal masses of aluminum and chromium are transferred to equal volumes of water in separate graduated cylinders, which graduated cylinder would have the greatest ..
Write a detailed sheet/ flow chart for the isolation and purification of 1-bromobutane. Designate how each minor-product is removed form the major product and which layer holds the product in each experimental step performed.
The half-life of a certain radioactive element is 1250 years. What percent of the atoms remain after 7500 years?
What mass of sodium azide is required to provide the nitrogen needed to inflate a 47.0 L bag to a pressure of 1.2 atm at 47 C.
A solution is made by dissolving 4.055 g of FeCl3 in 500 mL of water. The freezing point of this solution is -.316 C. What is the van Hoff factor (i) for FeCl3 at this concentration? (kf for water is 1.86 C/m)
Consider All the by products that will be formed by E1/E2 processes for the reaction of 2-methyl, Provide structures for all possible by products b) which alkene would be favored and why?
What assumption is commonly used to simplify the process of finding the pH for a solution of a weak acid
The solution has a density of 1.286 g/cm^3. Calculate E for the cell. Assume all the H+ ions come from the first dissociation of H2SO4 which is complete
Gasohol contains ethanol (C2H5OH) which when burned reacts with oxygen to produce CO2 (g) and H2O(g). How much heat is produced when 12.5 grams of ethanol burns.
A buffer is to be prepared with a pH of 4.5 from 0.1M solutions of sodium acetate and acetic acid. How many mL of 0.1M NaAc would have to be added to 100mL of 0.1M HAc to make the proper buffer solution?
A pure fluid is described by the following expression for Gibbs free energy: G = gamma(T) + RTlnP, where gamma(T) is a substance specific function of temperature.
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