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Aspirin that has been stored for a long time may give a vinegar odor and give a purple color with FeCl3, what reaction would cause this to happen
A. mass of solvent per liter of solution. B. mass of solute per liter of solution. C. mass of solute per liter of solvent. D. moles of solvent per liter of solute. E. moles of solute per liter of
balanced oxidation half reaction and balanced reduction half reaction?
The coinage metals -- copper, silver, and gold -- crystallize in a cubic closest packed structure. Use the density of copper (8.95 g/cm3) and its molar mass (63.55 g/mol) to calculate an approximate atomic radius for copper.
Assuming a 75% recovery of the volume from the first filtration, what volume of cation solution will be used in part B of the procedure? (Hint: you started with 100ml and added NaOH)
Find the lowest temperature of vaporization and the highest temperature when there is liquid left over and Determine the range of temperatures which could be used for this process.
The student rinses the sample into a small beaker using distilled water, and then titrates the solution with a 0.500 M HCl solution. 12.00 mL of the HCl solution is needed to reach the endpoint of the titration. Calculate the value of Ksp for borax..
Draw a detailed mechanism for the formation of 1,4-di-t-butyl-2,5-dimethoxybezene from t-butyl alcohol.
What is the balanced equation for the conversion of the fatty acid H3C-(CH2)20-COOH to acetyl CoA and other products?
2.00 L of H2 at a pressure of 368 torr and 1.00 L of N2 at an unknown pressure. If the total pressure in the flasks is 336 torr after the stopcock is opened.
what is the molarity of a solution prepared by combining 125mL of 0.251 molar HCl with 250mL of pure water
The standardized perchloric acid solution is then used to titrate 41.10 mL of a solution of sodium lactate (NaC2H5OCOO). An endpoint is reached when 18.22 mL of perchloric acid has been added.
A voltaic cell with Mn/Mn2+ and Cd/Cd2+ half-cells has the following initial concentrations: [Mn2+] = 0.090M and [Cd2+] = 0.060M. What is the equilibrium concentration of Cd2+
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