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The chemical commodity is described on the relevant shipping paper as follows: 5 lb RQ, Compressed gas, flammable, toxic, n.o.s. (POISON - Inhalation Hazard, Zone B). How would you identify, and what is, the radius of the initial isolation zone and the magnitude of the each side of the protective-action zone associated with the release of this substance? How would you handle the response, and how would you determine the proper type of PPE to be used in this incident? What type of PPE would you recommend?
a half-life for the disappearance of dinitrogen pentoxide of 5130 s. Suppose 0.450 atm of N2O5 is introducted into an evacuated 2.00 L flask. What will be the total gas pressure inside the flask after 3.00 hours
Ethylene glycol, HOCH2CH2OH, is effective as an antifreeze, but it also raises the boiling temperature of automobile coolant, which helps prevent loss of coolant when the weather is hot. a. What is the freezing point of a 50.0% solution of ethylen..
When adding ethylene glycol to your cooling system, it is usually mixed 50:50 by volume. This will prepare a 52.7 mass % solution. Convert this concentration to molality and predict the freezing point depression
The difference between the transition state and the energy of the products. C. The difference between the energy of the products and the energy of the reactants. D. Undefined because it depends on whether the reaction is endothermic or exothermic.
Calculate the heat of formation, Hof, of pentane given that the Hof of H2O(l) is -285.3 kJ mol-1 and Hof of CO2(g) is -393.5 kJ mol-1.
A particular X-ray microscope can measure the position of a particle to with 1.0X10^-10 m. What is the minimum error in the momentum (mv)
A solution containing 80. G of NaNO3 in 75 g of H2O at 50°C is cooled to 20°C. How many grams of NaNO3 remain in solution at 20° C?
A reaction has a standard free-energy change of -12.30 kJ mol-1 (-2.940 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 °C.
If the propanoate ion comes from strontium propionate, Sr(C3H5O2)2 then how many grams of strontium propanoate are needed? Assume it is completely soluble.
Draw the structures of the two carbocation intermediates that might form during the reaction of the alkene (below) with HCl. If the two carbocations differ in stability,
Calculate the potential of a hydrogen ( p= 1.02 atm) electrode in an aqueous solution of HBr (0.05 m ) at 298 K A) assuming ideal solute behavior. B) using the Deby- Huckel equation.
At high temperature, ammonia reduces copper(II) oxide to the free metal: Step 1: 2NH3(g) + 6CuO(s) => N2(g) + 3Cu2O(s) + 3H2O(g) Step 2: 2NH3(g) + 3Cu2O(s) => N2(g) + 6Cu(s) + 3H2O(g)
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