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The trace metal detection test is utilized to detect traces of metal left by carrying a gun in contact with skin. The test requires a 0.20% w/v solution of 8-hydroxyquinoline (C9H7NO) dissolved in isopropanol rubbing alcohol. Require to prepare 250mL of this solution.
A) How would you make this solution explain the process, including the amount of solute used?
B) Explain what is the molarity of 8-hydroxyquinoline in the solution?
a badly tarnished silver teapot. The tarnish is a result of the silver metal reacting with the oxygen in the air according to
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When active metals such as sodium are exposed to air, they quickly form a coating of metal oxide. The balanced equation for the reaction of sodium metal with oxygen gas is Na(s) + O2(g) ? Na2O(s)
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Determine the degeneracy g of the lowest 12 energy states for a particle in an infinite three-dimensional potential well whose dimensions are such that a=b=c. for each eigenstate, specify the number of nodes present as well as how many are in each..
A 29.0-g sample of water at 260. K is mixed with 51.0 g water at 310. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
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the hydrogen atom relaxes to a lower energy level, emitting light of 397 nm. What is the value of n for the level to which the electron relaxed.
Identify the species oxidized, the species reduced, the oxidizing agent and the reducing agent in the following electron transfer reaction.
a chemist wishing to do an experiment requiring 47ca half-life 4.5 days needs 5.0 mg of the nuclide. what mass of
The vapor pressure of a volatile liquid can be determined by slowly bubbling a known volume of gas through it at a known temperature and pressure.
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