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so the dyes to be seperated were 0.25 sodium fluorescein, 0.2% methylene blue and a dye mixture. When 95% ethanol was used as the buffer only the mixture and methylene blue travelled up the plate, but when 65% ethanol was used as the buffer all 3 of them travlled up the plate. why did sodium fluorescein not move with 95% ethanol?
How will the molar mass of an unknown acid be affected if some of the solid remained after the titration was complete. Will the concentration of the molar increase, decrease, or have no effect
What is the percent ionization of a 0.060 M solution of benzoic acid ( a monoprotic acid with Ka= 6.5 * 10^-5)
Radiation therapy. An effective treatment for some can cancerous tumors involve irradiation with fast neutrons. The neutrons from one treatment source have an average velocity of 3.2 X10-7 m/s.
Oxygen gas has an oxidizing strength comparable to that of nitric acid. Patina is a green or greenish blue coating that forms on copper metal in the environment. Account for its formation.
Consider the following reaction at equilibrium. what effect will increasing the volume of the reaction mixture have on the system?
Hydrogen peroxide, H2O2, is used to disinfect contact lenses. What volume of O2, in mL, of O2(g) at 35°C and 731 mmHg can be liberated from 50.0 mL of an aqueous solution containing 3.00% H2O2 by mass? The density of the aqueous solution of H2O2 i..
Arrange the following ions in order of increasing split between the t2g and eg sets of d orbitals- that is, in order of increasing delta o.
A compound forms between phosphorous and nitrogen. if 6.85 grams of phosphorous completely reacts with 5.15 grams of nitrogen, what is its empirical formula. show work in a table form.
When 79.272 cg of nitrogen gas is reacted with 79.272 cg of hydrogen gas, how many grams of ammonia are formed?
Estimate the temperature where Keq = 1.00 for the reaction. Estimate the value of deltaS0 for this reaction.
When the coal is burned, it produces SO2 emissions which then reacts with calcium dioxide to form solid calcium sulfite. If the coal is burned in a plant that uses 1784 tons of coal per day what is the daily productionof calcium of sulfite in Kg (..
what is the likely magnitude of the equilibrium constant K? Hydrogen is used as a rocket fuel because it is very light and reacts explosively and completely with oxygen. For the combustion reaction
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