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Provide the structures of testosterone and estrone. How many stereoisomers can exist for cortisone? Explain would these stereoisomers have identical biological activity?
Consider a sample of 3.5g of water, which has an equilibrium vapor pressure of 23.8mmHg at 25.0 degC. IF this sample is placed into a 6.00L flask, what mass of liquid water will remain when equilibrium is established
isopropyl alcohol c3h8o is sold in drug stores as rubbing alcohol. isopropyl alcohol is a water-soluble liquid with a
An acetic acid/acetate buffer system would be the best choice for experiments at pH = 5.00. What mass of sodium acetate trihydrate (NaCH3CO2•3H2O)
A mixture of table salt and ice is used to chill the contents of hand-operated ice-cream makers. What is the melting point of mixture of 2.00 lb of NaCl and 12.00 lbs of ice if exactly half of the ice melts?
Determine the extent of reaction and amounts of B & Z and A reaction having time independent stoichiometry follows the equation
The rate constant for the second order reaction 2NO2 ® N2O4 is 2.79 L/mol ·min at 48 oC. If the initial concentration of NO2 is 1.05 M , what is the half-life? A) 20.5 s B) 10.3 s C) 0.341 min D) 176 s
Assuming that the volume of a solid or liquid was independent of the external pressure, we deduced that there was no change in the Gibbs free energy of a solid or liquid when the pressure is changed.
A mixture of Helium, Neon, and Nitrogen gases has a pressure of 1.348 atm. Determine what is the partial pressure of N2 in the mixture If the pressures of Helium and Neon are 0.124 atm and 0.996 atm, respectively.
If 0.20g of gas occupies 400 mL at 30 degrees celsius and 700 mm Hg of pressure, what is the molar mass of the gas?
sodium carbonate is a reagent that may be used to standardize acids and bases in the same way that you have used khp in
A solution is made up using equal volumes of 2.0 M acetic acid (Ka= 1.8 x 10 to the power of negative 5) and 0.00050 M HCl.
1. what is the greenhouse effect?2. how does the excess co2 gas in the atmosphere cause the greenhouse effect?3. what
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