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Explain why multiple extractions with smaller volumes of the extraction solvent are typically "better" than single extractions with a larger volume of the extraction solvent.
Strontium-90 is one of the products of the fission of uranium-235. This strontium isotope is radioactive, with a half-life of 28.1 yr.
Describe in detail a way of preparing 500 ml of solution that is 0.02500 M in sodium ions. Start with solid sodium sulfate decahydrate
solution of sodium chloride contains 5.2 g nacl in 900 grams of water. what is the concentration of the solution in
What are the equilibrium partial pressures of CO and CO2 if CO is the only gas present initially, at a partial pressure of 0.872 atm?
suppose that a cars starter draws 225A of current for 6.3 s to start the car. what mass of Pb is oxidized in the lead-acid battery to supply the electricity?(in grams)
Estimate the root mean square speed of air molecules striking the skin of a CHM315 student sitting in the class room at 8:15 am, assume that the room is at 27 degrees celcius
Chemistry of Proteins and Hemoglobin - What is the effect of the following changes on the O 2 affinity of hemoglobin?
Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction. Be sure your answer has the correct number of significant digits.
5ml of solution A was added to enough water to make 100ml of solution B. Finally 5ml of solution B was added to enough water to make 100ml of solution C. What was the concentration of Erythrosin B in solution A,B, C
We did TLC and column chromatography separating methylene blue and fluorescein. The solvent contained mostly ethanol but also had NaOH, and this NaOH formed SiO- with the silica (the stationary phase), which is in competition with the solvent for ..
draw a series of titration curves for the titration of a strong base with anbsp strong acid where the concentration of
What volume of 3.00 M NaOH must you add to the acetic acid to achieve a buffer with a pH of 5.00 at a final volume of 500 mL? (Ignore activity coefficients.)
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