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A very strongly absorbing complex( Molecular weight: 100.0 g/mol) has a molar absorptivity of 40,000 M^-1 cm^-1. Assuming a 1.0 cm cell and a barely detectable transmittance of 99.1%, what is a reasonable lower concentration limit that one could detect of this complex ( in both mol/L and g/L)
how many atoms are in a small piece of aluminum foil that has a mass of 0.100 g? the mass of an atom of aluminum is 27.0 amu
This Tetris ice cube game is available to play as long as the ice cubes remain ice. The game pieces weigh 178 g, and the heat capacity of the room air,
the density of liquid water at 0 degrees c is 0.9987 gcm cubed the density of ice at this same temperature is 0.917 gcm
What is the molarity of solution when .8292 grams of Nickel
Calculate the concentration of the carbonate ion, CO3-, in a 0.010 M H2CO3 solution that has the stepwise dissociation constants Ka1 = 4.3 × 10-7 and Ka2 = 5.6 × 10-11.
ethylene glycol hoch2ch2oh is effective as an antifreeze but it also raises the boiling temperature of automobile
draw the lewis dot structures for the following molecules:
Show how to make N-methylpropionamide using propionic acid and methylamine and other necessary reagents. The methylamine and propionic acid do not both have to be used in the first step.
The aspirin componet weighs only 250mg. What is the w/w% aspirin inthe time release tablet?
When an amino acid is dissolved in a buffer solution, the pH of which is less than the isoelectric point of that amino acid, and an electric current is passed through the solution
At what pH will precipitation of Al(OH)3 begin if 5.40 lb of aluminum sulfate, Al2(SO4)3, is added to 1150 gallons of water (with a negligible change in volume)
Orange juice can be modeled crudely as a misture of 8 g/L of citric acid (formally, 2-hydroxy-1,2,3-pro-panetircarboxylic acid; C6H8O7) and 1.6 g/L potassium ion. Find the equilibrium pH of orange juice
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