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1) Tylenol is found to absorb at
245nm(A1=668) in aqueous acid and at 257nm(A1=715) in aqueous alkali
Where A1 = Absorbancy
If an acid solution in a 1 cm cuvette was found to have an absorbance of 0.669 absorbance units, what was the concentration of tylenol in the solution? If the absorbance of a basic solution of tylenol was 2.0, what would its concentration be?
Calculate the percent yield for the reaction. A scientist performs this reaction in the lab by starting with 30.02 g of Mg and 0.992 moles of Cl2 gas
Write the Nernst equation for this reaction, and then replace the molality of H+ with a relation using Kw and the molality of OH-. Rearrange this expression to solve for pKw (=-logKw) in terms of the standard and measured cell potentials and the g..
Does aldehyde react with H2O2 peroxide? If am treating an compound to convert the alkene into a diol and the compound is also an aldehyde would H2O2 react with the aldehyde group on the compound as well. Do I need a protecting group
How does the shape and average distance of the electrons from the nucleus compare for a 2p orbital of nitrogen and a 3p orbital of sulfur
compound be meso if it only has one chiral center? For example, is 1-chloro-1-methylcyclohexane a meso compound?
What mass of Cu and of N (in grams) are contained in 250.7 g of sample that is 75.4% pure Cu(NO3)2 by mass. (Assume that the impurities do not contain Cu and N.)
0.01m hcl reacts with 3.18 g na2co3. here 50 ml of hcl is required for the reaction. calculate the volume of co2
Determine the empirical formula of a compound containing 77.3% silver, 7.4% phosphorus and 15.3% oxygen.
Suppose sulfur dioxide reacts with oxygen at 25 degrees Celsius. 2SO2 (g) + O2 (g) ->
2-chloro-butane is obtained when 1-butene and 2-butene react with HCl. Which has the greater free energy of activation and why
An electron in the n = 4 level of an H atom emits a photon of wavelength 97 nm. To what energy level does the electron move?
the element neptunium possesses 93 electrons and weighs 237 amu. Calculate the contribution (in %) of its electrons to its total mass.
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