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?

Question

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?

Quizplus · Accepted Answer

The Answer of 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?

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

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