Partial pressure of oxygen in the mixture
A gaseous mixture of and contains 37.8 nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 785 ?
Express you answer numerically in millimeters of mercury.
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A gas occupying a volume of 139 mL at a pressure of .970 atm is allowed to expand at constant temperature until the pressure reaches .541 atm. What is the final volume?
Calculate the heat absorbed by 15.0 g of water to raise its temperature from 20.0oC to 50.0oC at constant pressure. The specific heat of water is 4.18 J/g.oC
They argue over whose balloon has gas molecules zipping around at greater average velocities. Resolve the argument.
The hot gas supply to a propulsion nozzle is at a pressure of 55kpa and temperature of 800K. the ambient pressure is 15kpa. If the ratio of specific heats is 1.33, approximately constant, and the molecular weight of the mixture is 30.
A square 3m x 3m gate is located in the 45* sloping side of a dam. Some measurements indicate that the resultant force of the water on the gate is 500kN.(a)Determine the preassure at the bottom of the gate.(b)Show on a sketch where this force acts.
How many grams of iron metal do you expect to be produced when 265 grams of an 84.5 percent by mass iron (II) nitrate solution reacts with excess aluminum metal? Show all of the work needed to solve this problem.
A balloon is filled to a volume of 7.00 times 10^2 mL at a temperature of 20.0 degrees celcius. the balloon is then cooled at constant pressure to a temperature of 1.00 times 10^2 K. what is the final volume of the balloon?
If the partial pressure of oxygen drops below 100 mmHg , passengers become drowsy. If this happens, oxygen masks are released. What is the total cabin pressure at which oxygen masks are dropped?
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