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The boiling point of carbon tetrachloride is 76.8 oC. A given solution contains 7.69 g of a nonvolatile nonelectrolyte in 373 g of CCl4. The solution boils at 78.1 oC. What is the gram molecular mass of the solute? (Boiling point constant for CCl4 is 5.03 oC/molal)
Acetic acid is prepared by the oxidation of ethanol with permanganate ion in an acidic solution. Write balanced (redox) equation for this reaction. The reduction product of permanganate ion is Mn2+
Give two reasons why ethuyl iodide is preferred over ethyl chloride in the Williamson ether synthesis.
A catalyst decreases the activation energy of a given reaction by exactly 15 kJ/mol. By what factor does the reaction rate increase at 25oC when the catalyst is used. Assume that the Arrhenius pre-exponential factor, A, is the same for the catalyz..
Given a buret filled with 0.12 M acetic acid and a second buret filled with 0.15 M sodium acetate, how many milliliters of each solution should be mixed together to produce 21.0 mL of a solution with a pH of 4.70
A solution containing 26.50mg of an unknown protein per 29.5mL solution was found to have an osmotic pressure of 3.75torr at 13C. What is the molar mass of the protein
Diphosphorus pentoxide(3.54g)has reacted with ferric oxide(5.45g). What is/are the mass/masses of the product(s) obtained per reaction assuming 100% yield
Calculate the molarity of a solution prepared by diluting 32.74 mL of 0.615 M ammonium sulfate to 490.0 mL.
A buffered solution is made by adding 50.0 g NH4Cl to 1.00 L of a 0.75 M solution of NH3. Calculate the pH of the final solution. (Assume no volume change.)
Electromagnetic radiation with a wavelength of 665 nm appears as orange light to the human eye. The energy of one photon of this light
Can't make it work. You have 0.035 +/- 0.002 mol of red dye, which you mix (thoroughly) with 25.00 +/- 0.05 mL of water. What is the concentration of the dye mix .001400 +/- .000008 M
the colors of the solutions are red, yellow, green, and blue. Further experiments reveal that two of teh complex ions are paramagnetic with four unpaired electrons and teh other two are diamagnetic. What can be deduced from this information about ..
Calculate the volumetric size of a water molecule for water in the form of ICE just below the melting point. Give answer in angstroms
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