number 11

In Chapter 2, you learned the average mass of 1 carbon atom is 12.011 amu (the number found beneath the C, carbon symbol, in the periodic table. This number is also the average mass in grams of 1 mole of carbon atoms: Molar mass of Carbon = 12.011 g/mol. 11. Use the mole ratio from the balanced chemical equation in Model 2: N; (g) + 3H2(g) 2NH(g), to solve the following problems. Hint: Use dimensional analysis. a. How many moles of nitrogen would be needed to make 10.0 moles of ammonia? b. How many moles of ammonia could be made by completely reacting 9.00 moles of hydrogen? c. How many moles of hydrogen would be needed to react completely with 7.41 moles of nitrogen? 3