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What is the cell potential for the reaction Mg (s)+ Fe2+(aq)=> Mg2+(aq)+ Fe (s) at 79 C when Fe 2+= 3.30 M and Mg2+= 0.310 it M.
Hydrogen gas can be produced in the labratory through the reaction of magnesium metal with hydrolic acid: Mg (s) + 2HCl (aq) ---> MgCl2 (aq) +H2 (g). What is the volume, in liters, of H2 gas produced at 26C and 770mmHg from the reaction of 13.0g o..
Optical fibers allow the fast transmission of vast amounts of data. In one type of fiber, the wavelength of transmitted light is 1.3 X 10^3nm. (a) What is the frequency of the light
Calculate the vapor pressure of a solution of 20 g of benzene (C6H6) and 20 g of toluene (C7H8) at 90 oC. Is the boiling point of this mixture higher or lower than 90 oC at an atmospheric
Calculate the partial pressure of carbon dioxide after cooling back down to the initial temperature and the mass percent, the mole fraction, and .
the concentrations in this system were found to be [N2]=[O2]=0.100 M and [NO]=0.500 M. N2(g)+O2(g)2NO(g) If more NO is added, bringing its concentration to 0.800 M, what will the final concentration of NO be after equilibrium is re-established?
Calculate the superhelical density of a 5000 bp plasmid DNA containing 25 positive supercoils (of B-form DNA).
Why is tetraphenylporphyrin (TPP) so stable? Why is it planar? Why does it precopitate so easily?
The average radius of a molecule of lysozyme, an enzyme in tears is 1430pm,what is the radius in nanometers.
Assume that .20 mol of the acid is added to 250 mL of water. To make a buffer of pH = 4, how many moles of the conjugate base must be added to the solution?
The value of deltaH for the reaction CH3OH (l)---->CO (g) +2H2 (g) is +128.1 kJ? How many kJ of heat are consumed when 5.10 g of co (g) is formed as shown in the equation
The mitochondrion has two membranes, the inner and outer- the outer membrane is porous and enables many molecules to freely diffuse. The inner membrane is different from the outer membrane as it is only penetrable to o2, co2, and h2o
If 3.17 moles of ethane, C2H6 undergo combustion,according to the unbalanced equation C2H6+O2--> CO2+H2O, how many moles of oxygen are required?
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