Which of the Following Samples Has the Greatest Density at STP

question 87

Multiple Choice

Which of the following samples has the greatest density at STP?

• A)NO₂
• B)Xe
• C)SO₂
• D)SF₆
• E)All of these samples have the same density at STP.

---

Definitions:

Observed Frequencies

The actual counts of occurrences for specific categories or outcomes in a data set.

Null Hypothesis

A default hypothesis that there is no significant difference or effect, intended to be contested by an alternative hypothesis.

Expected Frequency

The predicted number of times an outcome is expected to occur in a statistical experiment, based on theoretical probability distribution.

Significance Level

The threshold used in statistical testing to determine if a result is statistically significant, commonly set at 0.05, indicating a 5% risk of concluding an effect exists when it does not.