Oxygen Gas Makes Up 21 % of the Atmosphere by Volume.What

question 115

Multiple Choice

Oxygen gas makes up 21 % of the atmosphere by volume.What is the solubility of O₂(g) in water at 25°C if the atmospheric pressure is 741 mmHg? The Henry's law constant for oxygen gas at 25°C is 1.3 × 10^-3 mol/L·atm.

• A)2.7 × 10^-4 M
• B)1.3 × 10^-3 M
• C)6.2 × 10^-3 M
• D)9.6 × 10^-3 M
• E)0.96 M

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Definitions:

Median

The middle value in a data set, which divides it into two equal halves, or the value that occurs at the 50th percentile.

Mode

The value that occurs most frequently in a given data set.

Symmetric Distribution

A distribution where data is evenly distributed around the mean, with the left half mirroring the right half.

Mean

The central value of a dataset, calculated as the sum of all the numbers divided by the count of numbers in the dataset.