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What does a greater power rating mean in terms of
(a) the amount of work that can be done in a given time, and
(b) how fast a given amount of work can be done? What do we pay the electric company for-power or energy? In what units?
Which compound requires a higher energy photon to cause a p to p* (HOMO/LUMO) transition,
The solubility of KNO3 is 155g per 100g of water at 75 degree Celsius and 38.0 g at 25 degree Celsius. Explain what mass in grams of KNO3 will crystallize out of solution if exactly 100g of its saturated solution at 75 degree Celsius is cooled to ..
How many years will it take for a sample of 25 microcuries of tritium to decay to 3.125 microcuries
Determine for the delta h for the combustion of methanol to carbon dioxide as well as liquid water from the following data. The heat capacity of the bomb calorimeter is 34.65kj/k and the combustion
Explain why, in contrast to meso-stilbene dibromide, the dibromide dl-stilbene dibromide exists in two enantiomeric forms.
given the reaction ca 2h2o caoh2 h2what is the total number of moles of ca needed to react completely with 4.0 moles
reaction 3h2g n2g 2nh3gthe value of kp for the reaction is 4.3x104 at 648 k. determine the equilibrium partial
What is the pH of the resulting solution if 45 mL of 0.432 M methylamine, CH3NH2, is added to 15 mL of 0.234 M HCl? Assume that the volumes of the solutions are additive. Ka = 2.70 Ã? 10-11 for CH3NH3+.
Helum Gas at a Pressure of 8.2 atm expands in volume from 39.6L to 88.3 L. The temperature is held at 303 K. Compute the work done in Joules
Chlorine is more reactive than bromine. Bromine can be prepared by adding chlorine to an aqueous solution of sodium bromide. The reaction is represented by the equation 2 NaBr(aq) + Cl2(g) = Br2(l) + 2 NaCl(aq)
Which of the following is a use for nuclear energy?
Calculate the amount of heat liberated (in kJ) from 375 g of mercury when it cools from 89.2°C to 15.7°C
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