A Chemistry Student Determined the Empirical Formula for Tungsten Oxide

question 42

Short Answer

A chemistry student determined the empirical formula for tungsten oxide (W_xO_y).To do so, he heated tungsten with oxygen in a crucible.The data that he recorded are shown below: What is the empirical formula of tungsten oxide?

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Definitions:

Control Limits

Statistical boundaries set in process control that indicate the permissible range of variation for a process to remain in control.

Assignable Causes

Specific, identifiable factors that cause variation in a process or system, as opposed to random variation.

Type II Errors

A statistical error that occurs when a test fails to reject a false null hypothesis.

Type I Errors

Incorrectly denying a correct null hypothesis, familiarly termed as a "false positive."