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What l-monosaccharide would yield an an optically active aldaric acid on oxidation with nitric acid
The pH of an aqueous solution containing only a monoprotic weak acid has a pH of 4.1. What is the concentration of hydronium ion, H3O+, in the solution? (a)2 x 10?3 M (b)2 x 10?4 M (c)8 x 10?4 M (d)8 x 10?5 M (e)0.61 M
the density of a given solid and liquid k are 992.6 kg m-3 and 933.4 kg m-3of molar mass 147.2 gmol at its normal
how many grams of calcium hydroxcide will be formed in this reaction when 4.44 grams of calcium oxide and 7.77 grams of
The sum of the third and the fourth terms is 48. If the terms of the geometric progression are alternately positive and negative, then the first term is?
A scientist wants to make a solution of tribasic sodium phosphate, Na3Po4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 425 mL of a solution
Consider the standard cell at 25C based on the following half-reactions. Pb^2+ + 2e^- --> Pb E=-0.13V Zn^2+ + 2e^- --> Zn E=-0.76V To the standard cell, OH-, is added to the zinc compartment causing precipitation of Zn(OH)2. After precipitation is..
vitamin tablet contains 125 mg of vitamin C (C6H8O6). How many vitamin C molecules are contained in the tablet?
Write the mass balances for K+ and the phosphate species in a soln prepared by mixing .025mol KH2PO4 plus
the summit of Mt. Humphreys, the highest point in Arizona, is 12,600 ft. How many meters is this
The Phi ? and Psi ? angles of one alpha carbon located in the center of an alpha helix in myoglobin are -60o and -45o, respectively.
NO (g) + O3 (g)-> NO2 (g) + O2 (g) For the reaction given, the frequency factor A is 8.7 x 1012 s-1 and the activation energy is 63 kJ/mol. What is the rate constant for the reaction at 75°C.
Determine the molality of a solution of water dissolved in methanol for which the mole fraction of water is 0.46.
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