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Question
The apparatus shown is called a closed-end manometer because the arm not connected to the gas sample is closed to the atmosphere and is under vacuum.
What is the pressure (in mm Hg) of the gas inside the above apparatus if the outside pressure, Patm, is 745 mm Hg and the difference in mercury levels, 
h, is 25 mm Hg?
A) 25 mm Hg
B) 720 mm Hg
C) 745 mm Hg
D) 770 mm Hg
Answer
This answer is hidden. It contains 1 characters.
Related questions
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In the following picture of an oxide, darkly-shaded spheres represent oxygen atoms or ions and lightly-shaded spheres represent atoms or ions of a third-row element in its highest oxidation state. Tell whether the oxide is covalent or ionic and whether the oxide is acidic or basic. A) covalent and acidic
B) covalent and basic
C) ionic and acidic
D) ionic and basic
Q:
Picture (a) shows p-orbital overlap between carbon and oxygen atoms; picture (b) shows p-orbital overlap between silicon and oxygen atoms. Based on these pictures, it is expected that
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B) silicon and oxygen form better σ bonds than carbon and oxygen, so Si-O single bonds are stronger than C-O single bonds.
C) carbon and oxygen form better π bonds than silicon and oxygen, so C=O double bonds are stronger than Si=O double bonds.
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A) element A
B) element B
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D) element D
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Q:
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Q:
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Q:
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Q:
Chromium can be electroplated from an aqueous solution containing sulfuric acid and chromic acid, H2CrO4. What current is required to deposit chromium at a rate of 1.25 g/min?
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Q:
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A steel pipe can be protected from corrosion by attaching the pipe to a piece of magnesium because
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Q:
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Q:
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