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The total pressure of gas collected over water is 725.0 mmHg and the temperature is 18.5 C what is the pressure of hydrogen gas formed in mmHg

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Hydrogen was is collected over water with a total pressure of 725.0 mmHg at 18.5 °C. The partial pressure of hydrogen gas is 708.9 mmHg.

What is collecting gas over water?

When a gas is produced in a chemical reaction, it can be collected by water displacement.

Because the gas is collected over water, it is not pure but is mixed with vapor from the evaporation of the water.

What does Dalton's law state?

Dalton's law state that the total pressure of a gaseous mixture is equal to the sum of the partial pressures of the gases.

The total pressure of gas collected over water is 725.0 mmHg and the temperature is 18.5 °C.

At that temperature, the vapor pressure of water is 16.13 mmHg.

P = pGas + pH₂O

pGas = P - pH₂O = 725.0 mmHg - 16.13 mmHg = 708.9 mmHg

Hydrogen was is collected over water with a total pressure of 725.0 mmHg at 18.5 °C. The partial pressure of hydrogen gas is 708.9 mmHg.

Learn more about collecting gases over water here: https://brainly.com/question/13323291

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