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Propranolol is an adrenergic antagonist. Compare the structure of propranolol with noradrenaline and identify which features are similar in both molecules. Suggest why this molecule might act as an antagonist rather than an agonist, and whether it might show any selectivity between the different types of adrenergic receptor.
write a net ionic equation for the reaction of each antacid with aqueous HCl. include the state of each species. a)MgCO3 b)CaCO3 c)Mg(OH)2
If 1.50g (NH4)2SO4 is dissolved in enough water to form 250 ml of solution, what is the molarity of the solution.
Compute the mass of air in an air-filled tire and the also determine the mass of He in a helium-filled tire
Explain briefly how you could prepare the buffer solution in (a) if you had available the solid salt of the only one member of the conjugate pair and solution of a strong acid and a strong base.
Electron Donor and Receptor in Metal Complexes, In the first step of the catalytic cycle, the alkene bonds to palladium to make a new metal complex The alkene is now a ligand because the pi-bond of the alkene is donating some of its electrons to p..
draw the Lewis structure with all bonds and lone pairs (b) indicate directions in all bond dipoles (c) indicate the molecular dipoles and (d) indicate the shape of each molecule.
A particular reactant decomposes with a half-life of 115 s when its initial concentration is 0.353 M. The same reactant decomposes with a half-life of 225 s when its initial concentration is 0.180 M.
the current generator box was only 89.3% current efficient, losing some current. The production of the tri-iodide ion was by the same oxidation reaction as in our lab. What is the ppm of water in the 250 ml ethanol sample?
If 45 mL of H2 (g) are collected over water at 27°C and 751 mmHg external pressure. How many grams of Al were reacted.
a photon of ultraviolent lights possesses enough energy to mutate a strand of human dna. what is the energy of a single uv photon and a mole of uv photons having a wavelength of 25 nm
What is the mole fraction of solute and the molal concentration for an aqueous solution
A.117 gram sample of a metal reacts with hyrdochloric acid to produce 36.3 ml of dry hydrogen gas, measured at STP. what is the equivalent weight of this metal?
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