1.) The density of liquid nitrogen is 0.808 g/mL at -196 degrees Celsius. What volume of nitrogen gas at STP must be liquefied to make 10.0 L of liquid nitrogen?
2.) Calculate the volume occupied by 2.5 mol of an ideal gas at STP.
3.) A hydrocarbon (compound containing only hydrogen and carbon) was analyzed to be 85.7 mass percent carbon and 14.3 mass percent hydrogen. At 26 degrees Celsius and 745 torr pressure a sample with a volume of 1.13 L had a mass of 1.904g. Determine the molecular formula.
4.) HCl(g) can be prepared by reaction of NaCl with H2SO4. What mass of NaCl is required to prepare enough HCl to fill a 340. mL cylinder to a pressure of 151 atm at 20.0 degrees Celsius.
5.) You are not sure whether to fill a balloon with He or hot air. To what temperature would the air have to be heated for a balloon to rise to the same height as a balloon filled with He at 25.0 degrees Celsius?
6.) At 27.7mL sample CO2(g) was collected over water at 25.0 degrees celsius and 1.00 atm. What is the pressure in torr due to CO2(g)? (The vapor pressure of water at 25.0 degrees celsius is 23.8 torr.) What will the volume of CO2(g) be at the same temperature and pressure after removing the water vapor?

Solution Summary

The solution uses gas laws to calculate and answer various questions on densities, volumes and temperatures of gases.

...gas law relates the four variables of pressure, volume, temperature, and number of ... The ideal gas law is the combination of all the simple gas laws such as ...

... Where is the absolute pressure [Pa] is the volume [m3] is ... Where is the absolute pressure [Pa] is the density is the ... The expert examines ideal gas law problems. ...

... find the pressure of each gas at the new volume. Then use Dalton's law. ... to specific heat, density, photon energy, wavelength characteristics, gas laws and unit ...

... Vapor Density and the Ideal Gas Law Lab Conducted: October 10 ... Purpose: To use the Ideal Gas Law (PV=nRT) to ... three separate trials to determine the volume of gas...

... You are given the mass in Ibs as. You are given the volume in as. ... The expert examines perfect gas laws for aerodynamics. IDEAL GAS LAW EQUIVALENT FORMS. ...

... Ideal gas Law is PV=nRT or n=PV/RT R= Gas constant= 8.3145 J.mol ...Volume of air that is displaced=Volume of balloon= 113.10 m^3 Density of air= 1.22 kg m^-3. ...

... that as we compress the gas (decrease the volume) the molecules moved ... Ideal Gas Law Derivation. Molecules of the ideal gas are hard spheres that have perfectly ...

... 2 Perfect Gas Law: These three laws can be combined to give an equation that describes a gas... where R is the universal gas constant and has a value of 0.08205 l ...

... Question 19 According to the first law of thermodynamics: ... 20 problems dealing with stoichiometry, gas laws, and enthalpy ... All of these gases will occupy the same ...