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Describe the technique used to determine the density of approximately 5 gram samples of the following at 20 degrees C and 1 atmosphere pressure: A) Gasoline B) Granular Sugar C) A lump of gold D) Mercury
A 2.000 ton block of aluminum at room temperature (22 degrees celsius) is struck by lightning. The lightning transfers 8.000 x 10^6 kJ of energy to the block
At 80 °C the vapor pressures of pure liquids X, Y, and Z are 385, 190, and 66 mm Hg, respectively. What pressure must be exerted on the surface of a solution
A buffer is prepared by mixing 453 mL of 0.143 M HCl with 983 mL of 0.848 M ammonia (NH3). Given that the Kb of NH3 is 1.8 x 10-5, calculate the pH of the solution.
Consider a galvanic cell that uses the following reaction. 2 Ag+(aq) + Sn(s) 2 Ag(s) + Sn2+(aq) Calculate the potential at 25°C for a cell that has the following ion concentrations
Describe your operation, its different components or stages, the materials used and the type of wastes generated. What is your waste management plan and approach for protecting the environment and human health?
The temperature of the solution drops by 22.4 degrees Celsius. If the specific heat of the solution is 4.18J/g degrees C, calculate the enthalpy of the solution of ammonium nitrate.
Use heat of formation data to determine H for the combustion of hydrogen sulfide according to the following reaction: 2 H2S(g) + 3 O2(g) ? 2 SO2(g) + 2 H2O(?) ?H = ? ?Hfo for compounds:
Sketch the log C - pH diagram for 10-4 M NaHCO3. Use your ENE/MBE to graph to find the pH
Calculate the freezing point of an aqueous solution formed by dissolving 4.22 g of KCl in 25.00 mL of water. Kf for water is -1.86 degrees C/m. Assume the density of water
How many grams of potassium nitrate are soluble in 100.0 g of water at 80degrees celcius?
When methane is burned with oxygen, the products are carbon dioxide and water. If you produce 18 grams of water from 8 grams of methane and 32 grams of oxygen
System conducts 1.30x10^2 cal heat to srroundings while delivering 316 cal work. What is the change in internal energy of the system (in Cal).
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