A sample of a gas mixture contains the following quantities of three gases. compound CO CO₂ SF6 со The sample has: volume = 2.50 L temperature = 16.6 °C CO₂ What is the partial pressure for each gas, in mmHg? What is the total pressure in the flask? SF6 total Submit mass 1.19 g 2.49 g TUTOR STEP 3.35 g Check mmHg mmHg mmHg mmHg Show Approach Hide Tutor Steps What amount of CO, in moles, is present? Molar mass of CO = 28.01 g/mol mol Next (1 of 10) Approach masses (g) of gases Step 1 amounts (mol) of gases Step 1 Calculate amount of each species (mol). ngas mass(g) x = Step 2 Determine the partial pressure of each species (atm). Pgas = Step 4 Calculate the total pressure. Step 2 1 mol molar mass(g) Step 3 Convert each partial pressure to units mmHg. ngas RT V pressure (mmHg) = pressure (atm)x partial pressures (atm) 760 mmHg 1 atm all gases. total pressure = ΣPeach gas Step 3 partial pressures (mmHg) Step 4 total pressure
Ideal and Real Gases
Ideal gases obey conditions of the general gas laws under all states of pressure and temperature. Ideal gases are also named perfect gases. The attributes of ideal gases are as follows,
Gas Laws
Gas laws describe the ways in which volume, temperature, pressure, and other conditions correlate when matter is in a gaseous state. The very first observations about the physical properties of gases was made by Robert Boyle in 1662. Later discoveries were made by Charles, Gay-Lussac, Avogadro, and others. Eventually, these observations were combined to produce the ideal gas law.
Gaseous State
It is well known that matter exists in different forms in our surroundings. There are five known states of matter, such as solids, gases, liquids, plasma and Bose-Einstein condensate. The last two are known newly in the recent days. Thus, the detailed forms of matter studied are solids, gases and liquids. The best example of a substance that is present in different states is water. It is solid ice, gaseous vapor or steam and liquid water depending on the temperature and pressure conditions. This is due to the difference in the intermolecular forces and distances. The occurrence of three different phases is due to the difference in the two major forces, the force which tends to tightly hold molecules i.e., forces of attraction and the disruptive forces obtained from the thermal energy of molecules.
Step by step
Solved in 3 steps with 3 images
