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Calculate the amount of water per gram of compound required to steam distill nitrobenzene (MW 123.11), which has an azeotrope temperature of 99 oC.
What is the volume of 455 mL of oxygen gas at 67.0°C and 300. mm Hg if the conditions are adjusted to 890. mm Hg and 107°C? Assume the amount of gas is held constant.
Someday, cars may be powered by clean H2/O2 fuel cells and electric motors. Under standard conditions, such a fuel cell can develop 1.229 volts. If the oxygen is obtained from air (at P=0.21 bar), what pressure of H2 would be required to develop 1..
what is the percent yield of a reaction in which 248 g phosphorus trichloride reacts with excess water to form 126 g
The Henry's Law constant of methyl bromide, CH3Br, is k = 0.159 mol/(L • atm) at 25°C. What is the solubility of methyl bromide in water at 25°C and at a partial pressure of 250. mm Hg?
Suppose we add 10.5 g or 0.100 mol of sodium acetate, NaC2H3O2 to 1 L of a 0.100 M solution of acetic acid HC2H3O2. What is the pH of the resultant solution?
Estimate the average spacing between water molecules in liquid water by making use of 2 pieces of information: (a) liquid water has a density of 1 g/cm^3
Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydrogen peroxide, H2O2, can be titrated against a solution of potassium permanganate, . The following equation represents ..
when 1 gram of nitroglycern c3h5no33 decomposes to form nitrogen gas oxygen gas gaseous carbon dioxide and liquid water
The concentration of sulfuric acid in the lead-storage battery of an automobile over a period of time has decreased from 38.0 % by mass (density of 1.29g/mL) to 26.0 percent by mass(1.19g/mL). Assume the volume of the acid remains constant at 724 ..
A second sample of this acid weighing 2.00 grams is added to the titrated sample and the pH is 4.32. Calculate the molar mass of the unknown acid and determine the value of Ka for this acid.
Solid ammonium nitrate (NH4NO3) and solid calcium chloride were placed in water and the mixture was stirred. What is the precipitate?
a 0.1276 g sample of an unknown monoprotic acid was dissolved in 25.0 ml of water and titrated with 0.0633 m naoh
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