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The solubility of suberic acid is 0.14 g/100 ml of water or 0.56 g/100 ml of ether. Calculate the volume of ether needed to remove 90% of the suberic acid from 100 mL of saturated aqueous solution in a single extraction.
an elemental has a mass of 10.3 grams. if the volume is 58.4 liters and the pressure is 758torrs at a temperature of
at atmospheric sample is composed of nitrogen oxygen argon water vapor and trace other gases. if the partial pressure
High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify chemical substances. The pressures used in this procedure range from around 500 kilopascals (500,000 Pa) to about 60,000 kPa (60,000,000 Pa)
The Ka of a monoprotic weak acid is 6.08 × 10-3. What is the percent ionization of a 0.187 M solution of this acid
Iron and Steam can react to produce solid Fe3O4 and hydrogen gas. This reaction is carried out using 25.0 g of iron and 48.2 g of steam. A)What is the maximum mass, in gram, of Fe3O4, that can be produced from this reaction
You created a buffer system by first neutralizing the supernatant solution containing Pb2+, Fe3+, Al3+, Ca2+, Cu2+, and K+ ions with 6M NH3 solution , and then adding an equal additional volume of 6M NH3 solution. Explain what forms of NH3 were pr..
It is the peak of WWI and German scientist Haber is making ammonia for munitions production. This is initially a slow process but the laboratory has enough money for top of the line equipment. How could this scientist speed up the process
A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. Determine the pH of the solution after the addition of 50.0 mL of HNO3. The Kb of NH3 is 1.8 × 10-5.
an ice cube is placed in a beaker of water at 20 c. the ice cube partially melts and the temp of the water is lowerd to
At high temperature, hydrogen and carbon dioxide will reversibly react to form carbon monoxide and water vapor. At 986 degrees C there are 0.11mol of each product and 0.087mol of each reagent in a 1.00L flask. What is Kc under these conditions
Calculate the change in molar entropy when 2.00 miles of ozone are compressed isothermally to one quarter of its original volume. Treat ozone as an ideal gas.
A sample of pure silver jewelry has mass of 63.3g and is heated to a temperature of 111.4C. It is placed into a container of water at 17C.
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