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Calculate the heat energy released when 19.6 g of liquid mercury at 25.00 °C is converted to solid mercury at its melting point.
Calculate the potential of a platinum electrode immeresed in solution buffered to a pH of 6.50 and saturated with H2
Show your calculations and determine the half-life of Tc-99 (in hours). (b)The delivery of a sample of Tc-99 from the reactor to the nuclear medicine lab of the hospital takes 3h.
How many moles of NaOH would be required to completley neutralize 37.22mL of 0.25M HCl.
Consider 25.0 g of water at 21.7°C that are mixed with 25.0 g of water at 43.3°C in a foam cup calorimeter. The equilibrium temperature reached was 30.4°C.
What is the molarity (M) of the concentrated HClO4 solution?
The half-life of a reaction, is the time it takes for the reactant concentration to decrease by half. For example, after one half-life the concentration falls from the initial concentration to, after a second half-life to, after a third half-life ..
The heat of combustion of cyclobutane is 650.3 kcal/mol. How much energy is released during the complete combustion of 450 grams of cyclobutane.
Calculate the amounts of C 7 H 8 , C 7 H 16 , and H 2 in the output stream express your answer (in mol s -1 ).
Compounds of boron and hydrogen are remarkable for their unusual bonding and also for their reactivity. With the more reactive halogen
Glycophorin A is a 131 residue integral membrane protein that contains a single transmembrane alpha helix. If the lipid bilayer has a thickness of 30 A, calculate the number of residues of an alpha helix
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution,
Calculate the moles of silver nitrate and sodium chloride. (c) Which reactant is the limiting reagent? (d) Determine the theoretical yield in grams of silver chloride formed.
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