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What was the purpose of using aq. NaOH in aldol condensation lab? A. It acts as an electrophile on which an enolate ion can attack B. It acts as a nucleophile which can attack an electrophilic carbonyl carbon. C. It acts as a base and deprotonates the ?-hydrogen atom. D. It acts as a solvent to dissolve the reactants. E. It was not used at all in aldol condensation lab.
In Organic lab we are enabling trans to cis isomerizaton of E-1,2-dibenzoylethylene by irradiating the alkene with UV light. What is the overall equation for this reaction
Calculate the surface tension from 0.028M soap solution at 293K. If the surface tension of 0.056M soap solution is 0.0433Joule per kelvin square. Surface tension of pure water is 0.0728 joule per meter square.
the experiment is then repeated with the copper immersed in a stream of water that maintains its temp at 293. Calculate the change in entropy of the copper and the water in this case.
indicate whether aqueous solutions of each of the following solutes will contain only ions, only molecules, or mostly molecules and a few ions: a) NH4Cl, a strong electrolyte. b)ethanol, CH3-CH2-OH, a nonelectrolyte. c)HCN, hydrocyanic acid, a wea..
determine the mass of lithium hydroxide produced when 0.38 grams of lithium nitride reacts with water according to the following unbalanced chemical equation
When the temperature is increased from 164.5°C to 179.0°C, the rate constant increases by a factor of 4.27. What is the activation energy of this oxidation reaction?
A very long insulating cylindrical shell of radius 6.70cm carries charge of linear density 8.60Nc spread uniformly over its outer surface
the following reactions 2K(s) +Br2(l) --> 2KBr (s) AgNO3 (aq) + NaCl (aq) -->AgCl (s) + NaNO3 (aq) HCl (aq) + KOH (aq) --> H2O (l) + KCl (aq) are all examples of
certain metals can be extracted from their salts usually halides those containing group 17 elements such as chlorine
Determine the atomic number and valence orbital that is filling for the element that would appear below radium in the periodic table.
2 naclo3 -gt 2 nacl 3 o2determine the number of moles of o2 produced by the decomposition of 639 g of
All of the potassium reacted to produce bubbles of hydrogen gas, which, because of the extraordinary care that was taken, did not ignite. How much hydrogen gas was produced, in units of moles?
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