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It takes 11.2 kJ of energy to raise the temperature of 145 g of benzene from 25.0°C to 70.0°C. What is the specificheat of benzene?
explain the order of elution you observed while performing the gas chromatography for this experiment. what property of
Calculate the [H3O+] concentration in 0.45 M solution of barbituric acid, HC4H3N2O3. Ka for barbituric acid is 1.0 X10 ^-5.
A sample of helium gas has a volume of 241 mL at 0.83 atm. What pressure is needed to reduce the volume at constant temperature to 35 mL.
[H+] of the rainfall over Washington, DC is 3.163*10-5 moles/liter. what is the ph of the rainwater
Sea-level atmospheric pressure is approximately 14.7 pounds per square inch. From this fact, we can deduce that a column of air one square inch in cross-section, measured from sea level to the top of the atmosphere
Which of the following correctly describes the equalibrium constant for the gas phase reaction between H2 and O2 to form gaseous H2O? a.) Kc = [H2O]/[H2][O2] b.)Kc = [H2O]^2/[H2][O2] c.) Kc = [H2O]^2/[H2]^2[O2] d.) Kc = [H2][O2]/[H2O] e.) Kc = [H2..
a 54.1 gram sample of an unknown hydrocarbon was burned in an excess of oxygen to form 88.0grams of carbon dioxide and 27.0grams of water. what is a possible molecular formula for the hydrocarbon?
Use the Nernst equation to deter mine the cell potential, Ecell of the voltaic cell consisting of the following redox couples.
Hydrochloric acid reacts with calcium to form hydrogen and calcium chloride. If 100 grams of hydrochloric acid reacts with 100 grams of calcium, what is the limiting reagent
Can somebody give me examples of how hard acid base theory can be used to predict reactivity. I understand that hard binds to hard and soft binds to soft, but could someone give me examples
An unkown metal is found to have a density of 19.3 g/cm3 and to crystallize in a body-centered cubic lattice. the edge of the unit cell is found to be 0.28864nm. What is the atomic mass of the metal? and Units?
Determine whether or not the mixing of each of the two solutions indicated below will result in a buffer. 1.100.0 mL of .10 M NH3; 100.0 mL of .15M NH4Cl.
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