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Three compounds are running on a silica gel TLC plate developed in hexane-ethyl acetate, an alcohol, an aromatic, and a carboxylic acid. Which of the following are true.
a) the carboxylic acid will run the fastest and the aromatic the slowest
b) the carboxylic acid will run the fastest and the alcohol the slowest
c) the aromatic will run the fastest and the carboxylic acid the slowest
d) the alcohol will run the fastest and the aromatic the slowest
The volume of a unit cell of diamond is .9454 nm^3 and the density of diamond is 3.52 g/cm^3. find the number of carbon atoms in the unit cell of diamond
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during exercise a person breathes in between 100 and 200 L of air er minute. if a person is exercising enough to breathe in an average of
A metal is electrolyzed from aqueous solution by using an electrical current of 1.23 A for 2½ h, and 3.37 g of metal is deposited. In a separate experiment the number of electrons used for the reduction of the metal is 2.
A cell composed of a platinum indicator electrode and a silver-silver chloride reference electrode in a solution containing both Fe2 and Fe3 has a cell voltage of 0.725 V. If the silver-silver chloride electrode is replaced with a saturated calome..
What is the molality if a solution in which 15 g of I2 is dissolved in 500. g of alcohol?
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Which of the following molecules would be expected to be MOST water soluble?
Gaseous ethane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 10.82 g of ethane is mixed with 62.90 g of oxygen.
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The U.S. Environmental Protection Agency set a maximum contaminant level (MCL) for tetrachloroethylene (TCE, C2Cl4) in drinking water of 0.005 ppm (by mass).
Calculate the concentration of cadium chloride contaminant in the original groundwater sample. Round your answer to 2 important digits.
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