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-A student started the purification and recrystallization with a crude sample of adipic acid that weighed 20.421 g and obtained a yield of pure adipic acid of 73.5% How much pure adipic acid was recovered? (Please Explain)
-The melting point of Jonny's adipic acid was 15 degrees below the literature value. Was his adipic acid pure or impure?What do you think Jonny may have done wrong?
the pka of benzoic acid and 4-nitroanilinium hydrochloride are 4.2 and 1.0 respectively.a. determine the keq for the
a 19.3 g mixture containing sodium sulfide and calcium chloride. 86.9 sodium sulfide and 63.9 by mass chlorine. what is
What is the quantity of moles, of neon gas if 4.87 L is at a pressure of 0.635 atm and the temperature
What is the atomic radius of each atom that composes it If the length of a face centered cubic unit cell is 0.200 nm,?
if the height of the mercury column in the leveling bulb is 30mm greater than that in the gas buret and the atmospheric
Given that 3.582 g of copper (II) chloride are dissolved in 2.478 litres of deionized water, answer the following: 1) How many moles of copper (II) ions are present in the sample
What is the vapor pressure of each of the solution components in the mixture? What is the total pressure above the solution?
Nitrogen trichloride, an unstable liquid, is placed in a 3.00 L container at 29ºC. The initial pressure in the flask is 1.00 atm due to the presence of air.
The function (x)=A(x/a)^2(1-(x/a)) is an acceptable wave function for the article in the one-dimensional infinite depth of length a. Calculate the normalization constant a and the expectation value
The nuclide 18f decays by both electron capture and beta plus decay. Find the difference in the energy released by these two processes. The atomic masses are 18F = 18.000950 and 18O= 17.9991598.
You want to determine the protein content in milk with the Kjeldahl method. You take 100 g whole milk and use 100 mL of 0.5 M hydrochloric acid to collect ammonia. You needed 34.50 mL of 0.3512 M NaOH for the back-titration. Calculate the percenta..
c3h8g5o2g gt 3co2g4h2g og in the combustion of 250g of propane with an excess of hydrogen what volume of carbon
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