Oxygen Gas Makes Up 21 % of the Atmosphere by Volume

question 77

Multiple Choice

Oxygen gas makes up 21 % of the atmosphere by volume. What is the solubility of O₂(g) in water at 25 ^$\circ$ C if the atmospheric pressure is 741 mmHg The Henry's law constant for oxygen gas at 25 ^$\circ$ 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:

Standard Error

A statistic that measures the dispersion or variability of a sampling distribution, often used in estimating parameters.

Confidence Interval

A range of values that is used to estimate the true value of a population parameter with a certain level of confidence.

Population Standard Deviation

A measure of the dispersion of a set of data from its mean, calculated for the entire population.

Confidence Interval

A statistical range, with a given probability, that contains the true parameter of the population.