You begin with 13.89 grams of CO(g) and 17.83 grams of O 2(g) . If 14.84 grams of CO 2(g) are produced, what is the percent yield? 2 CO(g)+ 1 O 2(g) → 2 CO 2(g)"

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3