A Convenient Way to Produce Very High Purity Oxygen in the Laboratory

question 45

Short Answer

A convenient way to produce very high purity oxygen in the laboratory is to decompose KMnO₄(s)at high temperature according to the following chemical equation:
2KMnO₄(s) $\rarr$ K₂MnO₄(s)+ MnO₂(s)+ O₂(g)
If 2.50 L of O₂(g)is needed at 1.00 atm and 20°C, what mass of KMnO₄(s)should be decomposed? Assume the decomposition of KMnO₄(s)goes to completion.

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Definitions:

Dominant Firm

A company that has a major share of total sales in a particular market, giving it significant control over market prices and competition.

Oligopoly

A market structure characterized by a small number of firms controlling a large majority of the market share, leading to limited competition.

Dominant Price Leader

A firm that has the biggest market share in an industry and whose price changes are usually followed by other firms in the market.

Oligopoly

A market structure characterized by a small number of firms which dominate the market, leading to limited competition and potentially higher prices for consumers.