The Thermal Decomposition of Potassium Chlorate Can Be Used to Produce

question 8

Multiple Choice

The thermal decomposition of potassium chlorate can be used to produce oxygen in the laboratory. 2KClO₃ (s) → 2KCl (s) + 3O₂ (g)
What volume (L) of O₂ gas at 25 °C and 1.00 atm pressure is produced by the decomposition of 7.5 g of KClO₃ (s) ?

• A)4.5
• B)7.5
• C)2.3
• D)3.7
• E)11

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Definitions:

Forgetting Curve

The graphic pattern representing the relationship between measures of learning and the length of the retention interval: As the retention interval gets longer, memory decreases.

Unrelated Verbal Material

relates to words or phrases that have no direct connection or relevance to each other, often used in memory or cognitive processing studies.

Encoding Specificity

The principle that memories incorporate unique combinations of information when encoded, making recall more effective when context at the time of retrieval matches the context of encoding.

Habituation

A psychological learning process wherein there is a decrease in response to a stimulus after being repeatedly exposed to it.