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Cortisol ( M=362.47g/mol); Corisol is 69.6% C, 8.34% H, 22.1% O by mass. What are the empirical and molecular formula?
Strike anywhere matches contain the compound tetraphosphorous trisulfide, which burns to form tetraphosphorus decaoxide and sulfur dioxide gas.
If the partial pressure of oxygen drops below 100 , passengers become drowsy. If this happens, oxygen masks are released. What is the total cabin pressure at which oxygen masks are dropped?
Lyzozyme(The protein) unfolds at a transition temperature of 75.5 degree celsius, the standard enthalpy of transition = 509 kJ/mol. Compute the entropy of unfolding of this protein at the temperature of twenty five degree celsius
An electron in the ground-state He+ ion undergoes a transition to a state described by the wavefunction R4,1(r)Y1,1(?,). (a) Describe the transition using term symbols. (b) Compute the wavelength, frequency, and wavenumber of the transition.
A cubic meter of a gravel-and-sand aquifer has been contaminated with 20 L of tetrachloroethylene. If the amount of tetrachloroethylene dissolved in aquifer water is 20 percent of its aqueous solubility,
a.) Can you be certain that the organic layer would from the upper layer? Eplain in details. b.) How could you test to determine which is the non aqueous layer? Explain in details.
E1 mechanisms a little clearer? maybe make a chart with simmilarities and differences and how to know which one is which?
A certain protein was found to contain 0.412% manganese by mass. Determine the minimum molecular mass of the protein.
if the freezing point of a .106 m CH3COOH solution is -.284 degrees celsius, calculate the percent of the acid that has undergone ionization.
if 98 g grams of CaCN2 reacts with 59 g grams of H2O, what mass of NH3 will be formed.
At 80 °C the vapor pressures of pure liquids X, Y, and Z are 385, 190, and 66 mm Hg, respectively. What pressure must be exerted on the surface of a solution
Suppose that 0.92 of water condenses on a 85.0 block of iron that is initially at 22. If the heat released during condensation goes only to warming the iron block, what is the final temperature (in ) of the iron block? (Assume a constant enthalpy ..
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