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Explain treatment of a 0.4-g sample of impure potassium chloride with an excess of AgNo3 resulted in the formation of 0.7332-g of AgCl. Compute the percentage of KCl in the sample
Pressurized carbon dioxide inflators can be used to inflate a bicycle tire in the event of a flat. These inflators use metal cartridges that contain 16.0 of carbon dioxide. At 290 , to what pressure (in psi) can the carbon dioxide in the cartridge..
The vapor pressure of solid CO2 is 280 torr at -90 C and 105 torr at -100 C. What is teh value of delta G for the reaction CO2 s --> CO2 g at each temperature
Choose the selection which correctly characterizes all three of the following substances in terms of whether they are polar or nonpolar
In what ways may the rotational and vibrational spectra of molecules change as a result of isotopic substitution
The combined stream fed into the evaporator. The concentrated stream that leaves the evaporator contains 49.4 % K2CrO4 by mass. This stream is fed into a crystallizer, in which it is cooled, causing crystals of K2CrO4 to precipitate as well as the..
when 2.45 g of an unknown weak acid ha with a molar mass of 85.0 gmol is dissolved in 250.0 g of water the freezing
Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 1.505-g sample of Mg metal is added to 150.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. What mass of H2 is formed
The final temperature of the water and the carbon is 59.02 C. Calculate the specific heat of carbon. The specific heat of water is 4.18 J/g C.
Sulfur dioxide (SO2) is an unwelcome result of burning soft coal in power plants. Some of the SO2 ends up as sulfuric acid in acid precipitation.
Calculate the molar solubility of Fe(OH)2 in a buffer solution where the pH has been fixed at the indicated values. Ksp = 7.9 x 10-16. (a) pH 7.2
Explain this method of quantitation including what aromatic structures absorb at 280 nm. As well describe potential problems associated with the method
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to make 5.00 102 mL of solution and then titrate the solution with 0.163 M NaOH.
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