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A gas is initially at 1.2 atm, 15.0 L, and O°C. What is the final pressure when the same amount of gas is heated to 10°C and the volume changed to 13.0 L?
The rate constant for the reaction 2A ? 2B + C is 1.72 M -1min-1. Find the time, in seconds, needed to decrease the concentration of A from2.45 M to 1.22 M.
Explain the following given for each statement in determining the sequence of peptide with concise (short) but complete response. you must state the specificity of each statement implication in determining the sequence of octapeptide.
Calculate the minimum energy that a bird of mass 25 g must expend in order to reach a height of 50 m.
Explain why the salt of a weak acid, as well as the acid itself, must be present to form a bu?er solution.
how many grams of urea must be added to enough water to obtain 115 ml of a solution with an osmotic pressure of 2.7 atm at 35 degrees celsius
Calculate the mass in grams of copper initially present in the penny based on the concentration of copper in the sample, the total volume of the sample, the dilutions to the original stock, and the molar mass of copper.
To treat a thyroid tumor, a patient must be given a 170-mCi dose of iodine-131, supplied in a solution containing 41 mCi/mL. What volume of solution must be administered per dose?
How much energy is released when 32.4 g of water freezes? The heat of fusion for water is 6.02 kJ/mol.
what is the ph of the 0.20 M NH3/0.20 M NH4Cl buffer after the addition of 10.0 ml of 0.10M HCl to 65.0 ml of the buffer.
Why are monochromators (prism or grating monochromators) used in scanning instruments as opposed to absorption filters
Fish produce glycerol to survive the freezing waters of the Arctic. Determine the degree to which the freezing point of blood and other biological fluids is lowered with the help of glycerol. What is the ideal concentration range of glycerol requi..
Write the Oxidation Half Reaction and Write the Reduction Half Reaction
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