Calculate volume of the gas if its temperature is changed
A sample of gas occupies a volume of 396 mL at 1.28 atm and 72 oC. Calculate the volume of the gas if its temperature is changed to -31.5 oC while its pressure is held constant.
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A 1.50 L mixture of helium, neon, and argon has a total pressure of 1.47 atm at 298K. If the partial pressure of helium is 0.38 atm, and the partial pressure of argon is 0.32 atm, what mass of neon is present in the mixture?
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If a person ingests 9.00 mL of 14.0mM NaCN, what percentage of iron(II) in the blood would be sequestered by the cyanide ion?
A horse canters away from its trainer in a straight line, moving 116 m away in 14.0 seconds. it then turns abruptly and gallops halfway back in 4.8 seconds. calculate (a) its average speed and (b) its average velocity for the entire trip, using "a
Compare discrete-trial and free-operant methods of instrumental conditioning. What are the advantages of each class of procedure? What factors would influence your choice of procedure type if you were to explore instrumental behaviors?
What mass of octane must be burned in order to liberate 5350 kJ of heat? ΔHcomb = -5471 kJ/mol.
A space station, in the form of a wheel 105 m in diameter, rotates to provide an "artificial gravity" of 2.50 m/s2 for persons who walk around on the inner wall of the outer rim. Find the rate of rotation of the wheel (in revolutions per minute) t
A solution of salt (molar mass 90 g mol -1) in water has a density of 1.29 g/mL. Calculate the mole fraction of the salt in the solution
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