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If a pure (+) enantiomer has [α]25D = +90o, what will be the specific rotation of a mixture containing 25% of the (+) enantiomer and 75% of the (-) enantiomer?
how many grams of calcium hydroxcide will be formed in this reaction when 4.44 grams of calcium oxide and 7.77 grams of
Propose the kinds of attractive forces that might bind congo red to cotton fabric.
A 303- sample of unknown solution reacts completely with to form 14.1 . What was the concentration of the solution?
Explain the following observations in terms of shifting equilibria by le Chatelier's principle. Write the equation for the equilibrium involved in each case.
that during one such stroke the opposing pressure in the tire was 30.0lb/in2 above the normal atmospheric pressure of 14.7 lb/in2. Calculate the number of joules of work accomplished during each stroke (1 atm= 101.325 J)
the smallest whole-number coefficients: C2H6 (g) + O2 (g) = CO2 (g) + H2O (g)
how many atoms are on the surface of the particle? What fraction of the gold atoms in the particle are on the surface?
The metal used to make the US nickel coin is an alloy of 75% copper and 25% nickel. What maximum mass of alloy could be produced if only 450 kg of nickel and 1180 kg of copper were on hand?
Calculate the concentrations of H3O+ and the pH of each acidic solution. Since HCl is a monoprotic acid (an acid that donates only one proton or hydrogen atom permolecule to an aqueous solution), the H3O+ concentration is equivalent to the HCl mol..
Calculate the wavelength of a photon in nm emitted by a hydrogen atom when its electron drops from the n=5 state to the n=3 state
At a certain temperature, the solubility of potassium iodate, KIO3, is 41.1 g/L. Calculate its solubility product constant for this temperature.
What is the correct formula of the salt formed in the neutralization reaction of hydrochloric acid with calcium hydroxide and Select the compound in which sulfur has its highest possible oxidation number.
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