Transcript Slide 1

Gas Quiz – Rd 3
Given: PV = nRT
1 atm = 760 mm Hg
R = 0.0821 L atm
mol K
“molar volume” = 22.4 L
Given the equation:
4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g)
Gas Quiz – Rd 3
Given the equation:
4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g)
a) How many moles of NH3 will react with
7.0 mol of O2?
b) At constant temperature and pressure, how
many liters of NO can be made by the
reaction of 800. mL of O2?
c) How many grams of O2 must react to
produce 60. L of NO measured at STP?
4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g)
a) How many moles of NH3 will react with
7.0 mol of O2?
7.0 mol of O2
4 NH3
5 O2
= 5.6 mol NH3
4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g)
b) At constant temperature and pressure, how
many liters of NO can be made by the
reaction of 800. mL of O2?
0.800 L O2
4 NO
5 O2
= 0.640 L NO
4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g)
c) How many grams of O2 must react to
produce 60. L of NO measured at STP?
@ STP molar volume = 22.4 L
60. L NO
1 mol
22.4 L
= 2.7 mol NO
2.7 mol NO 5 O2 = 3.4 mol O2 32.0 g = 110 g
4 NO
1 mol