Resources C 2 Flashcards pp.135-137 - PowerPoint PPT Presentation

resources c 2 flashcards pp 135 137 n.
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Resources C 2 Flashcards pp.135-137

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  1. Resources C 2 Flashcardspp.135-137

  2. These flash cards require a Periodic Table and a calculator.

  3. Using this equation:3H2 + N2 2NH3How many moles of H2 are needed to completely react with 2 moles of N2?

  4. 6 moles of H2

  5. Using this equation:3H2 + N2 2NH3What would be the mass (in grams) of 2 moles of N2?

  6. 56 g of N2

  7. What is the molar mass for:Na2S

  8. 78g1 mole

  9. What is the molar mass for:Mg(OH)2

  10. 58g1mole

  11. How many grams of carbon are in one mole?

  12. 12 grams

  13. How many atoms are in one mole of boron, B?

  14. 6.02 x 1023 atoms

  15. How many moles of NH3 can be produced from 6 moles of N2?N2 + 3H2 2NH3

  16. 12 moles NH3

  17. If we need 631 g of sucrose, C12H22O11, how many moles would that be?

  18. 631 g x 1 mole = 1.84 moles1 342g C12H22O11

  19. If we need 3.0 moles of sand, SiO2 how many grams would we need to measure out?

  20. 3.0 mole x 60g SiO2 = 1 1 mole 180g SiO2

  21. How many moles of H2 will completely react with 4 moles of O2 ?2H2 + O2 2H2O

  22. 8 moles H2