At 100 degrees Celcius and 120 mmHg, the element phosphorous exists as gas molecules (assume ideal) with the mass density of 0.6388 kg/m^3. what is the molecular formula for the molecules of the gas?
At 100 degrees Celcius and 120 mmHg, the element phosphorous exists as gas molecules (assume ideal)...
An ideal gas is at a temperature of 30 degrees celcius and a pressure of 2.00 atmospheres. What is the number of particles per unit volume of the gas? (Answer should be 4.86x10^25/m^3) PLEASE SHOW WORK
6. ) A sample of methane gas, CH4, at 322.0 degrees celcius and a pressure of 662 mmHg had a volume of 36.4 L. What would be the volume of the gas at STP 7.) The CO2 gas that was evolved during the fermentation of sugar was collected. After purification its volume was measured as 25.0 L at 22.5 Celcius and 702 mm Hg. How many moles of the CO2 gas were collected ? 8.) Commercially, compressed oxygen is sold...
1) An ideal gas initially at 1.2 atm and 27 degrees celcius is heated in a constant volume, sealed container to 75 degrees celcius. What is the finl pressure? 2) If a 15.2 Liter sample of ethane gas is at 26 degrees celcius and 1.04atm, what is the number of moles of gas in the sample? 3) What is the concentration in Molarity if 36.0 grams of MgCl2 is dissolved in water to make a totale volume of 250mL. 4)...
what is the volume of 5.87 moles of an ideal gas at 27.5 degrees celcius and 1.00 atm?
A sample of fluorine gas occupies 775 mL at 690 mmHg and 120 degrees Celsius. What is the mass of the sample?
To make ice water, I mix 200 g of water at 25.0 degrees celcius with 100 g of ice cubes at -15.0 degrees celcius. Water density is 1.00 g/cm^3, and the container perfectly insulates the system from the enviroment. Thermal equilibrium is eventually reached. Assume that all the ice must reach 0 degress celcius before any ice begins to melt. (a) determine (i) if any unmelted ice remains, and if so, the mass of the remaining unmeltd ice, and (ii)...
1. Ideal gas with internal degrees of freedom. Consider a free gas of diatomic molecules at temperature 7. Diatomic molecules have internal rotational excitations. The rotational energy levels of a single molecule are given by J(J+1) 2/2 J = 0,1,23 where J is the angular momentum and I is the moment of inertia. The degeneracy of the level J is 2J +1. Neglect any interaction between the molecules in the gas. The temperature is high enough so that the statistic...
Suppose you had an ideal gas of molecules of mass m that can move only in one dimension. The gas is in thermal equilibrium at a temperature T. Wnte an expression proportional to the probability of finding a molecule with velocity i. bive an expression Diy fortheprobablity density for molecules of speed v in the gas. Hint: this is much easier to derive than in the three dimensional case. For each v how many speeds vare possible in one dimension?...
Based on the ideal gas law, there is a simple equivalency that exists between the amount of gas and the volume it occupies. At standard temperature and pressure (STP; 273.15 K and 1 atm, respectively), one mole of gas occupies 22.4 L of volume. What mass of methanol (CH3OH) could you form if you reacted 4.24 L of a gas mixture (at STP) that contains an equal number of carbon monoxide (CO) and hydrogen gas (H2) molecules?
Helium gas is at 0 degrees C with the density at po= 0.179 kg.m3. the temperature is then raised to 100 C, but the pressure is constant. Assuming the helium is an ideal gas, what is the new density pf of the gas density=mass/volume