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A hurricane is simply a steam engine which draws much of its destructive power from the evaporation and condensation of water. The heat of condensation of water is -2257 kJ/kg. It is not uncommon for a hurricane to be 300 miles (482.8 km) across, with cloud heights of about 14 km. Assuming that the entire volume of the resultant cylinder (V = pr2h) was water, how much energy is released when the equivalent mass of water condenses from the vapor state into the liquid state? Assume that the density of sea water was 1027 kg/m3.
An excess of O2 reacted with 3.68 g of Fe. What is the percent yield if 4.86 g of Fe2O3 are isolated
What is the value of Keq for the reaction 4 HCl(g) + O2(g) reverse reaction arrow 2 Cl2(g) + 2 H2O(g)?
Why is a mixture of alcohol and water used, rather than simply water itself, to saponify the fat or oil
If you didn't have a computer or data system available, how would you measure the area of the peak. After all, someone's DUI may hinge on this measurement, and you may have to defend your calculation in court
Calculate the freezing point of a solution that contains 8.0 g of sucrose (C12H22O11) in 100. g of H2O. Kf for H2O = 1.86°C/m.
A clinic took temperature readings of 250 flu patients over a weekend and discovered the temperature distribution to be Gaussian, with a mean of 101.30°F and a standard deviation of 0.8490
if you have 1 gram of - ethyl lactate and purify it with an enantiomeric excess of 85 yields wihout any loss of
(a) What is the molecular weight of the drug? (b) What is the boiling point of the solution? (c) What is the osmotic pressure of the solution?
Calculate the wavelength and frequency of an emitted gamma particle having the energy of 1.29x 10^11 J mol. Enter in scientiic notation.
How may peaks do you expect to see in the NMR of the following molecule. What would be the multiplicity of each of those peaks
Calculate: (a) The partial pressure of each component. (b) The mass fraction of methane. (c) The average molecular weight of the gas mixture. (d) The density of the gas mixture in kg/ m3. write the steps please
electrons as dots and showing all non bonding electrons for C2Cl4 tetrachloroethylene and CO2 carbon dioxide
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