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We did an experiment to isolate acetylsalicyclic acid from aspirin using methanol. We crushed the aspirin tablet before the extraction began. Why were we instructed to crush the aspirin tablet before proceeding?
from the number of moles of H2O(.1331 mol) and CO2(.27 mol) that were produced what are the total number of moles of C atoms?
Assume that the following terpenoid is derived biosynthetically from isopentenyl diphosphate and dimethylallyl diphosphate, each of which was isotopically labeled at the diphosphate-bearing carbon atom (C1). Click on the carbons that would be isot..
what is the enthalpy change of c2h4g br2g-gt
Terminal alkynes are acidic compounds, with pKa values around 25. That means they are about: a. one million times more acidic than water b. one billion times more acidic than water c. one billion times less acidic than water d. one thousand times ..
in the organic chem we prepared soap by using tallow and sodium hydroxide. after keep checking the regular 6 weeks of
a calculate the surface area of an atom with a radius of 0.15 nm and a mass of 100 amus.b in a recent article mofs
Explain in terms of their structures why each of the following pairs of substances have very different chemical and physical properties: (a) silica and carbon dioxide (b) oxygen and sulfur
3.00×10-3 mol of HBr are dissolved in water to make 18.0 L of solution. What is the concentration of hydroxide ions, [OH^-], in this solution?
The elemental selenium dispersed in a dandruff control shampoo was determined by suspending a 10.0 mL sample in a warm ammonical solution that contained an excess of silver nitrate to give the following
compound has decomposed. What is the half-life of this reaction assuming first-order kinetics?
Originally, 1.0 mL Hydrochloric acid is added to 1.0g of an unknown amine and 28 mL water in the first step of the Synthesis of Acetamides. If we added 3X the amount of hydrochloric acid instead, why would there be no product?
A feed mixture weighing 200 kg of unknown composition containing water, acetic acid, and isopropyl ether is contacted in a single stage with 280 kg of a mixture
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