The Decomposition of Dinitrogen Pentoxide Is Described by the Chemical

question 28

Multiple Choice

The decomposition of dinitrogen pentoxide is described by the chemical equation 2 N₂O₅(g) → 4 NO₂(g) + O₂(g)
If the rate of disappearance of N₂O₅ is equal to 1.40 mol/min at a particular moment,what is the rate of appearance of NO₂ at that moment?

• A)0.700 mol/min
• B)1.40 mol/min
• C)2.80 mol/min
• D)5.60 mol/min

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Definitions:

Independent Variable

In an experiment, the variable that is manipulated to observe its effect on a dependent variable.

Treatment Variable

A variable manipulated by researchers in an experiment to determine its effect on an outcome measure; also known as the independent variable.

Testable Hypotheses

Statements that make predictions about the relationship between variables, which can be empirically tested through scientific research.

Hypothesis-Testing Approach

A method in research that involves making predictions, formulating a hypothesis, and then empirically testing it.