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Explain which of the following equations represents the rate law for the subsequent elementary process: A+B -> C+D?
What volume of 0.250 M Na3PO4 is required to precipitate all the lead(II) ions from 180.0 mL of 0.550 M Pb(NO3)2
the km of an enzyme of an enzyme-catalyzed reaction is 6.5 m. what substrate concentration will be required to obtain
What is the mole fraction of each component in a mixture of 12.45g of H2, 60.67g of N2 and 2.38g of NH3
What is the molarity of an aqueous solution containing 75.3 g of glucose (C6H12O6, mol wt = 180 g/mole) in 35.5 mL of solution
This is maintained by a number of buffers, such as the carbonic acid/bicarbonate system. Write out the acid-base reaction and state qualitatively how this buffer solution resists changes in pH. Given the Ka of carbonic acid, H2CO3 is 4.5 x 10-7.
I understand that the height of a peak in NMR spectroscopy indicates the number of identical hydrogens in that particular group. But what does it mean when peak height is measured in non-H units lacking a common denominator
Calculate the pH that results when the following solutions are mixed: 6.8 mL of 0.500 M sodium acetate and 15.2 mL of 0.350 M acetic acid.
the solubility of oxygen in water is 14.74mgl at 0 celcius and 7.03mgl at 35 celcius. estimate the solubility at 50
Name a few solutions you come in contact with every day. What substances make up these solutions. What is the solvent and the solute
What is the pressure in kilopascals in s 38.0L balloon st 22 C filled with hydrogen produced by the reaction of 854.25 g of potassium with water
a 1004.0 g sample of calcium carbonate that is 95 pure gives 225 l of carbon dioxide at stp when reacted with an excess
a 100-rm w lightbulb is placed in a cylinder equipped with a moveable piston. the lightbulb is turned on for
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