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A certain weak acid has ka = 1.0 *10^-4 . calculate the equilibrium constant for its reaction with a strong base.
In a coordination compound, which ion would you expect to have a higher coordination number with a bidentate nitrate group (NO3-), Co3+ or Ir3+? Why?
The vapor pressure of water at 29 ^circ rm C is 30.0 rm torr. What is the mass percentage of aluminum in this alloy?
The chlorine oxides, in which a chlorine atom is bonded to one or more oxygen atoms, are significant molecules in the chemistry of the atmosphere.
For the subsequent aqueous salt solutions, identify each as acidic, basic or neutral, and give the concentration of each ion in the solution at equilibrium you may need to look up some Ka and Kb values
Compare in your mind 3 different liquids: pure ethanol, a 50% ethanol/water mixture and a 50 % ethanol/methanol mixture. Rank these three liquids in order of increasing Ptotal when each liquid is in equilibrium with its vapor at 25ºC.
If 100 mL of a solution containing 0.001 g of a compound with a molecular weight of 150 has a measured absorbance in a 1-cm cell of 2.0, what is the compound's molar extinction coefficient?
Problem- Phosgene is a potent chemical warfare agent that is now outlawed by international agreement. It decomposes by the reaction
NaOCl, by mass. Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water to make 500.0 mL of a pH = 9.80 solution.
Complete and Balance the following redox equation. MnO4 + H +Br-->Mn2 +Br2 +H2O (acidic Solution). The sum of the smallest whole number coefficients is
Much commercial hydrochloric acid is prepared by the reaction of concentrated sulfuric acid with sodium chloride:
A nurse administered 4.90 mL of a radioisotope solution that has an activity of 155 μCi/mL . What total dose of the radioisotope did the patient receive?
This sample was reacted with excess ammonia in diethyl ether at 0 c. The product mixture had a specific rotation of -29.9 degrees. If the specific rotation of pure (R) 1-phenyl ethanamine is +39.3 degrees. This reaction resulted in [X] percent inv..
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