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Sulfur, S8, combines with oxygen at elevated temperatures to form sulfur dioxide. If 192 oxygen molecules are used up in this reaction, how many sulfur molecules reacted?
How much heat energy would be needed to raise the temperature of a 15.0 g sample of iron (C = 0.448 J/goC) from 22.0 oC to 100.0 oC?
How many moles of sodium hypobromite (NaBrO) should be added to 1.00 L of 0.055 M hypobromous acid (HBrO) to form a buffer solution of pH 8.95? Assume that no volume change occurs when the NaBrO is added.
A metal, M, was converted to the chloride, MCl2. Then a solution of the chloride was treated with silver nitrate to give silver chloride crystals, which were filtered from the solution.
one hundred grams of water is saturated with NH4Cl at 50 degrees celcius. According to table G if the temperature is lowered to 10 degrees celcuis what is the total amount of NH4Cl that will precipitate.
calculate the energy lost when 75.0 g of water cools from 86.4 degrees celcius to 2.1 degrees celcius
In biochemistry laboratories, solutions of sucrose (table sugar, C12H22O11) are used in high speed centrifuges to separate the parts of a biological cell.
the energy is 18.44 kj/mol and for the methyl group in equatorial position the energy was 8.66 KJ/mol based on this information which is more stable and why?
What is the height of the column that contains a solution of Sucrose (C12H22O11) with 21% weight percentage of Sucrose?
Calculate the values of vmax and Km for the reaction. c) How much of a noncompetitive inhibitor must be added to yield 90% inhibition? The degree of inhibition, i, is calculated by i% = (1-?) 100%, where ? = (vo)inhibition/ vo Assume KI = 2.9 x 1..
How wil you determie the relative reactivites of aromatic compounds? Outline the procedure that you need to do in the laboratory to determine the relative reactivites of the following:
What is the molecular geometry of Cl2CO?
What is the free energy change, ?G°, for the equilibrium between hydrogen iodide, hydrogen, and iodine at 453°C? Kc = 0.020
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