Gases produced by a chemical reaction can easily be collected over water. To determine the pressure of the dry gas, the

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answerhappygod
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Gases produced by a chemical reaction can easily be collected over water. To determine the pressure of the dry gas, the

Post by answerhappygod »

Gases produced by a chemical reaction can easily be collected
over water. To determine the pressure of the dry gas, the vapor
pressure of the water at that temperature must be subtracted from
the total pressure.
1.) Consider the following:
Mg(s) + 2HCI(aq) -------> MgCI2(aq) + HE (g)
The total pressure of gas collected over water is 665.0 mmHg and
the temperature is 25°C what is the pressure of hydrogen gas formed
in mmHg?
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