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An important space shuttle mission has been interrupted with an emergency that will delay the return of the crew to earth indefinitely. You are an emergency team that has been assigned the task of determining how long the crew can survive before carbon dioxide pollutes (how long can clean air be generated) their air supply and threatens their ability to breathe normally.
The Space Shuttle environmental control system handles excess carbon dioxide (which the astronauts breathe out - it is 4% by mass of exhaled air) by reacting it with lithium hydroxide pellets to form lithium carbonate and water. There are 7 astronauts on board the shuttle, and each exhales 20 liters of air per minute, and there are 25,000 g of lithium hydroxide pellets available. Assume the density of air is 0.0010 g/mL.You must generate a detailed report (1-2 pages) that outlines how much time is left and how much lithium hydroxide is needed to extend their stay another 10 days (show the calculations that justify your conclusion).
calculate the volume of O2 the bottle could deliver to a climber at an altitude where the temp is -38 C and the atmospheric pressure is 0.40 atm.
.56 g of a specific gas are held at 101 degrees Celcius and 800 torr in a volume of 285 mL. Determine the molecular weight of the gas.
The temperature of 1.5 kg of ethanol is 37°C. What will the final temperature be if 80,000 J of energy as heat is added to the ethanol.
The volume of a manifold used to transfer gases is calibrated using Boyle's Law. A 0.251-dm3 flask at pressure of 697 Torr is attached and after system pumpdown,
If 2.00 g of Mg reacts completely with 50.0 mL of HCI solution, what is the molarity of the HCI solution?
Need to make an aqueous solution of 0.233 M potassium iodide for an experiment in lab, using a 250 mL volumetric flask. How much solid potassium iodide should you add?
Match each item in Column A with the corresponding item in Column B regarding the processes of nitrification and denitrification: Column A Column B a. NH4+ i. Electron acceptor for denitrification
How much heat is required to raise the temperature of a 464g of lead from -20.0C to 219C
What mass of ethylene glycol, HOCH2CH2OH, must be dissolved in 4.510 kg of water to result in a freezing point of 18.0°C? What is the boiling point of the same solution?
The specific heat of aluminum is 0.21 cal g°C. How much heat is released when a 10 gram piece of aluminum foil is taken out of the oven and cools from 50 to 10 °C?
Assume that the kinetic energy of a 1300kg car moving at 140km/h could be converted entirely into heat. How much water is created in grams?
What pH range will allow the selective precipitation of one of the ions after saturation with H2S?
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