PPT-Molecular Composition of Gases

Stoichiometry of Gases Objectives Apply the principles of stoichiometry to determine the volume of any gas that is produced or consumed in a chemical reaction VolumeVolume Calculations At STP what volume of hydrogen gas is needed to react completely with 455 L of oxygen gas to produce water vapor. Diffusion plus Convection. ).  . Molecular Diffusion in Gases. Equimolar. . Counterdiffusion. A. B. B. A.  .  . In terms of mole fraction, . Molecular Diffusion in Gases. Uni. -component Diffusion. P. V. . =. . n. R. T. P. . = pressure in . atm. V. = volume in liters. n. = moles. R. = proportionality constant. . = 0.08206 L . atm. / . mol. ·. K. T. = temperature in . Kelvins. . Holds closely at . kinetic-molecular theory . is based on the idea that particles of matter are always in ______. For gases, this theory is based on the following ____ assumptions. . Kinetic-Molecular Theory. motion. and the Impact on Living Things. Earth’s Atmosphere. The gases that surround Earth (and other planets) make up the atmosphere. These gases are like an envelope that protects us from the radiation that is caused by the sun’s . Chemistry GT 3/20/15. Drill. Calculate the percent composition of Na. 2. SO. 4. .. HW: Molecular Formula WS (pg. 4). MM. =142.05 . g. /mol. 32.37% Na, 22.58% S, 45.05% O. Chem. Joke of the Day. The photon checked into a hotel. What did it say when the bellhop asked for its bag?. Percent Composition. . Percent Composition – . the percentage by mass of each element in a compound . Percent =. _______. Part. Whole. x 100%. So…. Percent composition. of a compound or =. molecule. Chp-05. : Kinetic Theory. Srinivasan G. Srivilliputhur. December 03, 2015. Today’s Overview . Kinetic Molecular Theory . (KMT). Terminology. : Here, the . term . “molecule”. . refers . to the individual chemical species . Root Mean Squared, Effusion, Real Gases. Kinetic Molecular Theory of Gas. What is Kinetic energy?. Energy of motion. Kinetic theory of gases. Assume molecules are point masses (possess mass but no volume). Percent Composition, . Empirical/ Molecular . Formula . Finishing Up Ch. 10. In 1811, Avogadro proposed a hypothesis:. Volumes of gases at the same temp and pressure have the same number of particles. Compounds are ALWAYS composed of elements in fixed ratios. This is often referred to as the . Law of Definite Proportions.. This law states that elements are always present in the same proportions by mass in a compound. I.e. H. Percent Composition. Percent . Composition – . the . percentage . by mass of . each . element in a . compound (*note: not the ratio of elements in the compound). Law of Definite Proportions . – compounds always contain the same proportions of elements by mass.. Due at end of Period. The compound . benzamide. has the following percent composition. What is the empirical formula? . C . = 69.40 % H= 5.825 % O = 13.21 % N= 11.57 % . 2. A . component of protein called serine has an approximate . 7.5 Composition and Structure of the Atmosphere What is the composition of Earth’s Atmosphere? SC.6.E.7.9, LA.6.2.2.3 Composition of Earth’s Atmosphere The atmosphere is the protective covering of Earth. It keeps Earth warm and protects it from Gas Pressure. Gas Laws & Ideal Gas Equation. Density of Gases. Stoichiometry involving gas reactions. Kinetic Molecular Theory of Gases. Root-mean-square speed. Rates of Gas Diffusion and Effusion.