Determine the emf of a fuel cell
Determine the emf of a fuel cell that oxidizes hydrogen according to the reaction:
2H2 (g) + O2 (g) --> 2H2O (l)
under the following conditions: pH = 0, PH2 = 1 atm, PO2 = 0.2 atm.
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What volume and mass of steam at 100 degrees C and 1.00 atm would, during condensation, release the same amount of heat as 100.cm^3 of liquid water during freezing? What do you note, qualitatively, about the relative volumes and masses of steam an
A sample of H½O with a mass of 46.0 grams has a temperature of -58.0 àC. How many joules of energy are necessary to melt 46.0 grams of ice? (Use 2.1 J/gàC for the specific heat of ice,
Consider 25.0 g of water at 21.7°C that are mixed with 25.0 g of water at 43.3°C in a foam cup calorimeter. The equilibrium temperature reached was 30.4°C. Calculate the calorimeter constant in J/°C.
Calculate the molality and molarity of an NH3 solution made up of 37.0 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL.
A 2.5-L sample of a 6.3M NACl solution is diluted to 75L. What is the molarity of the diluted solution?
Choose a current issue of consumer reports, money, BusinessWeek, or Kiplinger's Personal Finance and summarize an article that updates the costs of health care.
Calculate the density of a solid cube that measures 4.79 cm on each side and has a mass of 420
From the case study, determine Staples’ competitive advantage and its current business model. Next, use a brief SWOT analysis to analyze the primary way in which the company executes a strategy for growth based on its SWOT analysis.
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Develop an intervention (your capstone project), as a solution to the patient, family, or population problem you've defined.
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