Achemical reaction can theoretically produce 137.5 grams of product, but in actuality 112.9 grams are
produced. which is the percent yield for this reaction?
a. 82.11%
c. 24.60%
b. 62.08%
d. 17.91%

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