SCIN131 Lesson 05 - Week 05 Quiz

Question 14 of 25 `Suppose you were tasked with producing some nitrogen monoxide (a.k.a. nitric oxide). I'm sure this is often requested of you. You can do it by combusting ammonia (be careful!). The equation would be as follows: 4NH3 + 5O 2→ 4NO + 6H2O. If you form 3.50 mol of water, how much NO forms? A. 2.33 mol. B. 4.00 mol. C. 4.50 mol. D. 6.75 mol. E. none of the above Feedback: Good. See section 8.6 Question 15 of 25 `Methane is also known as natural gas, and its combustion is a very common reaction: CH4 + 2 O2 → CO2 + 2 H2O. Remember that we can use stoichiometry if we know the correct coefficients. So, which of these conversion factors will NOT work for this reaction? NOTE: All numbers located immediately after elemental symbols should be considered subscripts. A. 1 mole O2 = 32.00 g B. 2 mole H2O = 18.02 g C. 2 mole O2 = 1 mole CO2 D. 1 mole CH4 = 2 moles H2O E. none of the above