Dalton's Law of Partial Pressures Worksheet

Dalton's Law of Partial Pressures Worksheet - Dalton's Law...

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Dalton's Law of Partial Pressures Page 334-6 John Dalton was the first to form a hypothesis about the pressure one gas exerts on another in a mixture. When a gas is one of a mixture, its pressure is called a partial pressure. After experimenting with gases, he concluded that: each gas exerts the same pressure it would if it alone were present at the same temperature. Or in other words, the total pressure in a container is the sum of the partial pressures of the gases in the container. This statement is called Dalton's law of partial pressure. Chemists often obtain samples of gases by water displacement. It is a useful system for collecting many gases, but the gas must be absolutely insoluble in water or water vapor will be present in the gas sample. If a gas is collected over water, the pressure in the container actually includes the sum of the partial pressures of the gas and the water vapor. We know that each of the gases exerts the same pressure it would if it alone were present in the container (Dalton's law).
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