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An engineer is designing a reactor that will be filled with oxygen under high pressure. The volume of the reactor is 253 L, the maximum temperature inside the reactor will be 250ºC, and the pressure inside the reactor must not exceed 150 atm. The engineer uses the ideal gas law to calculate the maximum number of moles of oxygen that can be put into the reactor without exceeding 150 atm.
a) What number of moles does the engineer calculate using the ideal gas law?
b) Now use the van der Waals equation to calculate a more accurate value for the pressure inside the reactor at 250ºC, using the number of moles you obtained in part a. Will the reactor be at risk of failure, based on your answer?
Suppose that, from measurements in a microscope, you determine that a certain bacterium covers an area
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Use the following balanced equation for the problem below: 2HCl + Na2CO3 = 2NaCl + CO2 + H2O If 35.0 gm of Na2CO3 is reacted with 18.0 gm of HCl, how many grams of CO2 are produced
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A chemist prepares a sample of hydrogen bromide and finds that it occupies 258 mL at 60 degrees celsisus and 476 Torr. What volume would it occupy at 0 degrees celsisus at the same pressure? Answer in units of mL to 5 decimal places.
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When power was turned off to a 30.0 gal. water heater, the temperature of the water dropped from 75.0°C to 22.5°C. How much heat was lost to the surroundings? (1 gal = 3.785 L) Assume the density of water is 1.00 g/mL.
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