Earlier, the reaction of NaClO₃(s) shown below was presented as a portable source of oxygen that is similar to the chemistry used as a backup source for oxygen on the space station. If this reaction is needed to produce oxygen, it is important that the actual yield be close to the theoretical yield—the oxygen is needed for the astronauts to breathe!

(a) Calculate the theoretical yield of O₂ expected for the reaction of 45.4 g NaClO₃.

(b) What is the percent yield if 20.0 g O₂ is isolated in this experiment?

Strategy

We again use the same series of four steps to calculate the theoretical yield. In part b, this theoretical yield is divided into the actual yield of product isolated in the experiment times 100% to convert this number to a percentage.

Transcribed Image Text:

2NaClO3(s)→ 30₂(g) + 2NaCl(s)