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What the effect does the bulkiness of the base have on the product composition in the E2 dehydrobromination of 2-bromoheptane
when 2.00 x 10 3 g of CaCo3 are heated the actual yield of Cao is 1.05 x 10 3 g. what is the percent yield?
What is the percent ionization of a solution prepared by dissolving 0.0223 mol of chloroacetic acid, HC2H2O2Cl) in 1.80 L of water?
The radius of a xenon atom is 1.3\times 10^-8 cm. A 100mL flask is filled with Xe at a pressure of 1.5atm and a temperature of 254K
Draw a dilution scheme that would produce countable plates if the original culture has 4,730,000 viable cells/mL.
Provide structures consistent with the following molecular formulae and spectral data, and assign spectral peaks. Write your structures and tables on a sheet of paper.
Transesterification of a certain triglyceride produced one molecule of methyl oleate and two molecules of methyl linoleate. Draw the original triglyceride.
The weight of the purified caffeine is often much lower than the weight of the crude caffeine. Explain the reason why.
Calculate the mass of each product formed when 244 g of silver sulfide reacts with excess hydrochloric acid. Ag2S(s) + HCl(aq) -------> AgCl(s) + H2S(g)
A given mass of air occupies 900 ml at one atmosphere (760 mm) of pressure. What pressure must be applied to reduce the volume to 700 ml at constant temperature
A student found that the mass of an empty specific gravity bottle was 21.431 g. Metal pieces were added to the dry bottle. The specific gravity bottle and the metal pieces together
Beta-carotene is organge. This means it absorbs blue lgiht. It has conjguated systme which allows the pi-electrons to delocalize over teh length of the molecule.
A photon having E = 46.9 keV energy scatters from a free electron inside a metal. What is the maximum energy the electron can gain from the photon
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