PPT-Molar Volume Avagadro’s Principle

Equal volumes of gases contain equal numbers of molecules Volume of a gas varies directly with the number of molecules if pressure and temperature stay constant Standard Molar Volume Volume occupied by 1 mole of a gas at STP. Review Volume Molar Ratio Method (PVMRM) and Ozone Limiting Method (OLM) for I mpac t s ElizabethHendrickCCM EpsilonAssociatesInc Epsilon Inc Vincent Tino, CCM Epsilon Associates, IncDr. Bruce Ega Chapter 5. E-mail: . benzene4president@gmail.com. Web-site: http://clas.sa.ucsb.edu/staff/terri/. Gases – Ch. 5. 1. Draw the following:. a. A closed monometer attached to a flask filled with CO at 250 . PRINCIPLE 2UNEXPECTED PRINCIPLE 3COPRINCIPLE 4CREDIBLE PRINCIPLE 5EMTINAL PRINCIPLE 6 SORIES What is the density in g/L of hydrogen gas at 20.0 . o. C. and a pressure of 1655 psi?. A sample of gas has a mass of 0.555 g. Its volume is 117 mL at a temperature of 85 . o. C. and a pressure of 753 mmHg. Find the molar mass of the gas. . Lesson 6. Concentration. Concentration:. Is a measure of the amount of substance (solute….usually solid) that exists in a volume of solution (solvent).. Concentration. The amount of solute in a solution.. The Mole. mole. (mol)- SI Unit for the amount of a substance that contains as many particles as there are atoms in exactly 12g of carbon-12.. A unit of counting, like the dozen.. Avogadro’s Number. CHAPTER 7-2. How to find the molar mass of an element. The . molar mass . of any substance is the mass (in grams) of one mole of the substance.. It is expressed as grams/mole (. g/. mol. ).. The molar mass of . Concentration. The amount of a specific substance in a known volume of solution. Concentrated Solutions. The amount of substance dissolved in solution is very high . It is difficult to dissolve more substance into solution. 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. Molar Mass. Molar mass- same as atomic mass but for a compound rather than an atom.. To determine the molar mass of any compound you add up the atomic mass of all atoms present.. NaCl. 22.99 35.45 = . Chemical Quantities. Measuring doughnuts:. 1 dozen = 12 doughnuts (count) . 1 dozen = 500 g doughnuts (mass). 1 dozen = 1 box doughnuts (volume). Measuring steam (H. 2. O gas):. 1 mole = 6.02 x 10. 23 . Molar Volume. 1 . mol. of gas = 22.4 L .  molar volume. What volume would be occupied by 0.77 moles of helium gas at STP?. Density of Gases. Density = molar mass/molar volume. What is the density of (in grams per liter) of carbon dioxide gas at STP?. The molar mass of an element is useful to convert moles of an element to grams, or grams . to moles. . . . For example, 1 mole . of . sodium has . a . mass . of . 22.99 grams.. Learning Goal . Calculate the molar mass of a . First lesson of our next unit: U7 Stoichiometry . P3 Challenge – . Determine the number and kinds atoms for the chemical formula Al. 2. (SO. 4. ). 3. Today’s Objective –. Moles and particles. Assignment: .