What mass of oxygen is collected
A sample of oxygen gas is collected over water at 25 degrees C and a total pressure of 637 torr. The volume of the gas collected is 500.0 mL. What mass of oxygen is collected? The vapor pressure of water at 25 degress C is 23.8 torr.
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Of the solvents used, some were very polar (e.g., acetone, ethanol) while others were very nonpolar (e.g., hexane). Did the polarity of the various solvent mixtures seem to affect the completeness of the separation of dyes? Why might this be so?
Hot air is contained in a vertical, frictionless piston-cylinder device.the piston has a mass of 4 kg and a cross-sectional area of 35 cm2. A compressed spring above the piston exerts a force of 4 N on the piston.
Sodium carbonate (rm Na_2CO_3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be added to neutralize 6.05×103 kg of sulfuric acid solution?
The block diagram for an elevator controller for a two-floor elevator follows. The inputs FB1 and FB2 are 1 when someone in the elevator presses the first or second floor buttons, respectively. The inputs CALL1 and CALL2 are 1 when someone on
Consider a sinusoidal wave with frequency of 300KHz as a carrier signal. We want to transmit a sinusoidal signal with f=3KHz and Amplitude=1. Plot the AM modulated signal in MATLAB.
The decomposition of N2O to N2 and O2 is a first order reaction. At 730 degrees Celcius the half-life of the reaction is 3.58x10^3 min. If the initioal pressure of N2O is 2.10 atm at 730 degrees Celcius, calculate the total gas pressure after on h
If the molar mass of the hydrocarbon is 126.3 g/mol, what is the molecular formula of the hydrocarbon
The can diameter and height are D = 65 mm and H = 120 mm. The can is half-full of soda, with specific gravity SG = 1.06. Assume rigid body motion.
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