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Size exclusion chromatography (SEC) is a different technique. Explain how this technique is different from HPLC, Liquid chromatography, TLC, and GC.
how many moles of calcium chloride, cacl2, can be added to 1.5 liters of .020 M potassium sulfate, k2so4, before a precipitate is expected? assume that the volume of the solution is not changed significantly by the addition of magnesium sulfate.
In the reaction below, 6.31 atm each of Br2 and I2 were placed into a 1.00 L flask and allowed to react: Br2(g) + I2(g) 2 IBr(g) Given that Kc = 80.8, calculate the equilibrium pressure of IBr.
For our experiment we put 5 mL of red Kool-Aid in an empty 25 mL volumetric flask, we then slowly added water until it reached the 25 mL mark in the flask and recorded our observations. Obviously the red Kool-Aid was diluted by the water making it..
the energy of a photo is 3.16 times 10^-19J. what is the wavelength of the corresponding light. what is the color of this light.
a system at equilibrium or striving to reach equilibrium responds in a way that best accommodates or reduces any stress
What will be the final temperature of the solution in a coffee cup calorimeter if a 50.00 ml sample of .250 M HCl is added to a 50 ml sample of .250 NaOH
What mass of solid sodium hypochlorite (molar mass = 74.44 g/mol) should be added to 1.0 L of 0.255M hypochlorous acid to make a buffer with a pH of 7.54?
In Organic lab we are enabling trans to cis isomerizaton of E-1,2-dibenzoylethylene by irradiating the alkene with UV light. What is the overall equation for this reaction
An aqueous solution containing barium iodide (BaI2) is electrolyzed in a cell containing inert electrodes. The products at the anode and cathode are
Calculate the number of grams of sulfuric acid in 0.440 of battery acid if the solution has a density of 1.34 and is 39.1 sulfuric acid by mass.
An ammonia/ammonium buffer solution contains 0.22M NH3 and 0.83M NH4^+. The Kb value of ammonia is 1.8*10^-5. Calculate the of this buffer.
3.8 g of a hydrocarbon fuel is burned in a calorimeter that contains 234 grams of water initially at 25.00 ? C. After the combustion, the temperature is 26.55 ? C
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