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Explain a water sample is found to contain the pollutant chlorofluorobenzene CFB with a concentration of 25 ppb (by mass). Explain what volume of this water contains 7.50E2 mg of CFB presume a density of 1.00 g/mL)?
one balloon contains 2 liters of nitrogen at a pressure of 735 torr. another balloon contains 1 liter of oxygen at a
Show how to synthesize 2-methyl-2-pentene from an alkyl halide and an aldehyde or ketone, plus any other necessary reagents. Then show the reagents necessary to convert butyraldehyde into the following. There may be one more step
The molar heat capacity of silver is 25.35 J/Mol * degrees celcius. How much energy would it take to raise the temperature of 11.7g of silver by 16.9 degrees celcius?
A sample of clay was obtained from a point below the groundwater table. A moisture content test on this sample produced the following data
Rubidium chloride has the rock salt structure. Cations and anions are in contact along the edge of the unit cell, which is 658 pm long. The radius of the chloride ion is 181 pm. What is the radius of the Rb+ ion?
The average distance between Mars and Earth is 1.3 x 10^8 miles. How long will it take a picture transmitted from the Viking space vehicle on Mars' surface to reach Earth
Solid aluminum can be separated from molten AlCl3 by reduction. How many grams of Al(s) would be obtained by passing a current of 14.1 A through molten AlCl3(s) for 2.77 hr.
The molar stoichiometric ratio of nitrogen produced to ammonia reacted in the reaction equation is one to one, and the mol CO2/mol C6H12O6 = 2. How much (in g mol) (a) glycerol was produced and (b) how much biomass reacted to produce the 52.4 L of..
Predict whether each of the following salts will form an acidic, basic or neutral solution. for acidic and basic solutions write an equation for the reaction that takes place. a)Na2SO4 b)KBr c)BaCl2 d)NH4I
a solution is prepared by combining 11.7 grams of sodium hydroxide in approximately 450 mili litres of h2o in a
What concentration of this base will produce a pH of 10.13?
the activation energy for the decompostion of HI to H2 and I2 is 186 kJ/mol. The rate constant at 555 K is 3.2 x 10^-7 L/mol*s.
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