Given a barometric pressure of 751.5 mmHg, calculate the pressure of each gas sample as indicated by the manometer.
(b)

Key Concepts

Barometric Pressure

Barometric pressure is the pressure exerted by the weight of the atmosphere at a given point. It is commonly measured in units such as mmHg or atm. Understanding barometric pressure is essential for calculating the pressure of gases in various conditions, as it serves as a reference point for other pressure measurements.

Manometer

A manometer is a device used to measure the pressure of gases. It typically consists of a U-shaped tube filled with liquid, where the difference in liquid height between the two arms indicates the pressure of the gas relative to atmospheric pressure. Knowing how to read a manometer is crucial for determining the pressure of gas samples accurately.

Gas Laws

Gas laws describe the relationships between pressure, volume, temperature, and the number of moles of a gas. Key laws include Boyle's Law, which states that pressure and volume are inversely related at constant temperature, and Dalton's Law, which states that the total pressure of a mixture of gases is the sum of the partial pressures of each gas. These laws are fundamental for calculating the pressures of gas samples in various scenarios.