Common Gases Used in Laboratories Are Generally Obtained from Pressurized $\rarr$

question 93

Short Answer

Common gases used in laboratories are generally obtained from pressurized metal gas cylinders, but for small amounts of occasionally-used gases, it is sometimes easier just to prepare them chemically.For example, oxygen gas can be prepared by heating KMnO₄(s)according to the following chemical reaction:
2KMnO₄(s) $\rarr$ K₂MnO₄(s)+ MnO₂(s)+ O₂(g)
The above procedure was carried out starting with 93.2 g of KMnO₄, and it was later determined that all of the KMnO₄ reacted according to the above equation except 11.7 g.What was the percent yield for the reaction?

---

Definitions:

Benchmarking

The process of comparing a company's products, services, or processes against those of leading competitors or industry standards to identify areas for improvement.

Best Practice

A methodology or strategy recognized widely as surpassing all other options due to its ability to yield superior outcomes compared to other approaches.

Benchmarking Partner

An entity against which a company measures its processes, practices, or performance for improvement.

Same Type Of Business

Companies or enterprises that operate in the same industry or sector, often offering similar products or services.