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Catalyst

Catalyst. Calculators today! 1. What is the molar mass of CO 2 ? 2. If I have 150g of CO 2 , how many moles do I have?. Today’s Agenda. Grams Substance A. Molar Mass. Moles Substance A. Moles Substance B. Grams Substance B. WHY?. Mole Ratio. Molar Mass.

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Catalyst

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  1. Catalyst Calculators today! 1. What is the molar mass of CO2? 2. If I have 150g of CO2, how many moles do I have?

  2. Today’s Agenda

  3. Grams Substance A Molar Mass Moles Substance A Moles Substance B Grams Substance B WHY? Mole Ratio Molar Mass THIS GRAPHIC IS YOUR NEW BEST FRIEND! What can it tell you?

  4. What is the first step? • When doing conversions, always ask yourself--what is the conversion factor? • When going from feet to inches, what is it? • When going from grams to moles, what is it?

  5. Example 1 • How many moles are there in 23g of H2O?

  6. Example 2 • How many atoms are in 4.5 moles? • Remember your conversion factor is 1 mole = 6.02*1023 atoms

  7. Example 3 • How many moles are in 5.24 x 1020atoms?

  8. Example 4 • How many grams are in 1.2 x 1013atoms of H? • Multi-step!

  9. Example 5-New • Moles to grams • How many grams are there if you have 5 moles of CO2?

  10. Today’s Agenda

  11. Practice 1. Convert 30g of O2 to moles of O2. 2. Convert 3 moles of Li2O to grams of Li2O. 3. Convert 180g of CaCl2 to moles of CaCl2. 4. Convert 2.3 moles of NO3to grams of NO3. 5. Convert .35 moles of Na2S to grams of Na2S.

  12. Practice 6. Convert 100g of potassium chloride (KCl) to moles of KCl. 7. Convert 3.4 moles of H2O to grams of H2O. 8. How many grams are in .5 moles of MgO? 9. If Michael has 30g of Li2O, how many moles of Li2O does he have? 10. Convert 236g of CCl4 to moles of CCl4 CHALLENGE: It takes 10 moles of hydrochloric acid (HCl) to burn through cement. If Charles has 370g of HCl, does he have enough moles of HCl to burn through cement?

  13. Today’s Agenda

  14. Exit Slip 1. How many grams of H2O are there if you have 4 moles of H2O? 2. How many moles of CO2 are there in 873 grams?

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