1. Resources C 2 Flashcards pp.135-137

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

3. Using this equation: 3H2 + N2  2NH3 How 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  2NH3 What 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. 78g 1 mole

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

10. 58g 1mole

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
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 moles g 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 = mole 180g SiO2

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

22. 8 moles H2