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Mole to Grams Conversion Lesson | Homework Review | Class Agenda

Learn how to convert moles to grams in this interactive class session. Review homework on mole and mass conversions. Practice problems and understand the concept of molar mass. Convert moles to grams effectively with examples.

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Mole to Grams Conversion Lesson | Homework Review | Class Agenda

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  1. March 7, 2012 AGENDA: 1 – Bell Ringer & Part. Log 2 – Review Homework 3 – CN: Mole to Grams Conversion 4 – Weekly Raffle! 5 – Work Time Today’s Goal: Students will be able to convert from moles to grams. Homework • Mole and Mass Conversions: Page 1 (Moles  Grams) • Friday is the Last Day to turn in Last Week’s Work

  2. Review From Yesterday’s Notes:Practice Problems (Left Side of NB) NaCl = Na = Cl = 58.5 g 1 mol Ag = 107.9 g 1 mol LiNO3 = Li = N = 3 x O = 68.9 g 1 mol 23.0 6.9 35.5 14.0 + + (3x16.0)

  3. Cornell Notes • Topic: Mole to Grams Conversion • Date: 3/7/2012 • Remember: Molar Mass is the mass of 1 mole of any substance. • 1 mole (mol) always = 6.02 x 1023 particles • So 1 mol of different substances will have different masses.

  4. Cornell Notes (continued) • Imagine if you want to measure out a 1.5 mole sample of silver metal…? • Could you count out 1.5 moles? • But you can use molar mass to convert moles to grams, and you can measure grams. Molar Mass of Silver = 1.5 mole ... NO! • 107.87 g Ag • 1 mole Ag • x107.87 g= • 1 mole 1.5 x 107.87 g = 161.8 g Ag

  5. Cornell Notes (continued) • If you had a 7.5 mole sample of H2O, how many grams would you have? • Determine the molar mass. • Convert! (Watch units!) 1. H2O = 2xH = O = 18.0 g 1 mol 2. 7.5 mole H2O x 18.0 g 1 mol = 7.5 x 18.0 g H2O = 135.0 g H2O (2 x 1.0) 16.0 +

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