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Problem- After 77.0 min, 32.0% of a compound has decomposed. what is the half-life of this reaction assuming first-order kinetics?
Illustrate structures to prove your interpretation.
calculate the amount of potassium ferricyanide(formula weight 329.23g/mole) that must be used to prepare 250 mL of a 2.5X10-3 M solution.
What is the difference between alpha-glucose and beta-glucose? and show the condensation of two glucose molecules to form a disaccharide with an alpha linkage; with a beta linkage.
Using Henry's law, calculate the molar concentration of in the surface water of a mountain lake saturated with air at 20 and an atmospheric pressure of 660 torr.
Explain what NaCl concentration results when 269mL of a 0.700 M NaCl solution is mixed with 452mL of a 0.500 M NaCl solution
compound p binds with x to form the complex px. a series of solutions was prepared with the total p concentration
Determine the longest wavelenght of light required to remove an electron from a sample of potassium metal, if the binding energy for an electron in K is 1.76*10^3 kJ/mol.
Examine the following acid (H atoms are omitted from the structure): C-C-C=C-C-C-C=C-C-C-COOH. How many more hydrogen atoms would have to be added in order to fully hydrogenate this acid and remove the carbon-carbon double bonds
At equilibrium 1.12e-02 mol of HCl is found in the reaction mixture. Calculate the equilibrium pressures of all gases in the reaction vessel and the value of KP for the reaction. Pick the correct statement from the multiple choices. Use the value ..
A pentapeptide was found to contain the amino acids Phe, Gly, Met, Ala, and Ser. N-Terminal analysis yielded the PTH derivative of alanine. Partial hydrolysis of the pentapeptide yielded the dipeptides Gly-Ser, Ala-Gly, and Ser-Met. The peptide se..
10.0 mL of a 0.30 M sodium phosphate solution reacts with 20.0 mL of a 0.20 M lead(II) nitrate solution (assume no volume change). What is the concentration of nitrate ions left in solution after the reaction is complete
How many millimeters of 2.551 M sulfuric acid are required to completely neutralize a 556.97 mL aliquot of 0.0997 M sodium hydroxide
two naturally occurring isotopes, Re-185 (mass = 184.935 amu) and Re-187 (mass = 186.956 amu). Calculate the percent abundances of the isotopes of rhenium.
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