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The Mole Hill

The Mole Hill. Grams to Moles to Moles to Grams. Objective 5-6. SWBAT calculate molar mass and use it to convert between grams and moles. (Yes, this is the same objective as last week ). Grams to Moles. Review: Use molar mass! How many moles of H 2 O do I have in 25 grams of H 2 O?.

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The Mole Hill

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  1. The Mole Hill Grams to Moles to Moles to Grams

  2. Objective 5-6 SWBAT calculate molar mass and use it to convert between grams and moles. (Yes, this is the same objective as last week)

  3. Grams to Moles Review: Use molar mass! How many moles of H2O do I have in 25 grams of H2O?

  4. Moles to Grams Review: Use molar mass! How many grams of H2O do I have in 2 moles of H2O?

  5. Moles to Moles We can use subscripts in chemical formulas as a conversion factor too. For example: H2O gives us the conversion factors: 2 mol H = 1 mol H2O 1 mol O = 1 mol H2O

  6. Example How many moles of hydrogen are in 2 moles of H2O?

  7. Example How many moles of water can I make with 25 moles of hydrogen?

  8. Practice How many moles of oxygen are in 3 moles of SO4? How many moles of SO4 can I make with 10 moles of sulfur?

  9. The Mole Hill

  10. The Mole Hill Note: You can NOT convert straight from grams to grams. You MUST go: grams  moles  moles  grams

  11. Example How many moles of H2O are in 20 grams of H2O? How many moles of H are in 20 grams of H2O?

  12. Example How many grams of H are in 20 grams of H2O? How many grams of O are in 45 grams of H2SO4?

  13. Practice How many grams of H are in 40 grams of H2SO4? How many grams of H2SO4 are in 100 grams of S?

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