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An element occurs as a mixture of isotopes. The atomic mass of the element is based upon?
What are the steps to follow when calculating the percent ionization of acid in a buffer solution. example) percent ionization of .20 M benzoic acid in pure water and percent ionization of benzoic acid in a solution containing
a 55.0-l steel tank at 20.0degc contains acetylene gas c2h2 at a pressure of 1.39 atm. assuming ideal behavior how many
a 493 ml sample of solution contains 33.2 g of cacl2. calculate the molar concentration of cl in this
Sodium borohydride to 9-fluorenone that you used in the experiment (we used 100 mg of 9-fluorenone and 10 mg sodium borohydride). why is it necessary to use a greater molar ratio than theoretical
Electron Donor and Receptor in Metal Complexes, In the first step of the catalytic cycle, the alkene bonds to palladium to make a new metal complex The alkene is now a ligand because the pi-bond of the alkene is donating some of its electrons to p..
The temperature risese to 19.1 degrees celsius. Neglecting the heat capacity of the container, what is the specific heat of metal? The specific heat of H2O (l) is 4.18 J/(g*C)
An automobile gasoline tank holds 47kg of gasoline. When the gasoline burns, 165kg of oxygen are consumed and carbon dioxide and water are produced.What is the total combined mass of carbon dioxide and water that is produced?
For a hydrogen atom with its electron in the 3p_z orbital, what is the longest wavelength of light that can ionize the atom?
The specific heat of zinc is 0.096 cal/(g °C). Determine the energy required to raise the temperature of 29.2 g of zinc from room temperature (20.0 °C) to 150 °C.
Equilibrium can NOT be established when _____is/are placed in a 1.0L closed container: a. 0.25 mol SO2(g) & 0.25 mol O2(g), b. 0.75 mol SO2(g), c. 0.25 mol SO2(g) & 0.25 mol SO3(g), d. 0.50 mol O2(g) & 0.5 mol SO3(g), e. 1.0 mol SO3(g)
Which of the following correctly shows intrachain hydrogen bonding (???) in an alpha-helix? A. -NH HN- B. -C=O HC- C. -C=O HN- D. -C=O O=C- E. -CH HC-
Determine the normal boiling point of OPCl2F2. If the pressure of a sample of OPCl2F2 is reduced to 15 Torr, at what temperature will the sample boil
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