Hydrogen Gas Is Collected Over Water in an Inverted Buret

question 170

Multiple Choice

Hydrogen gas is collected over water in an inverted buret.If the atmospheric pressure is 745 mm Hg,the vapor pressure of water is 18 mm Hg,and a 15.0 cm-high column of water remains in the buret,the pressure of the hydrogen gas is

• A)763 mm.
• B)745 mm Hg.
• C)727 mm Hg.
• D)less than 727 mm Hg.

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