Question

Consider the three mercury manometers shown. One of them has 1 mL of water on top of the mercury, another has 1 mL of a 1 m urea solution on top of the mercury, and the third one has 1 mL of a 1 m NaCl solution placed on top of the mercury. Which of these solutions is in the tube labeled X , which is in Y , and which is in Z ? Figure can't copy 

   Consider the three mercury manometers shown. One of them has 1 mL of water on top of the mercury, another has 1 mL of a 1 m urea solution on top of the mercury, and the third one has 1 mL of a 1 m NaCl solution placed on top of the mercury. Which of these solutions is in the tube labeled X , which is in Y , and which is in Z ?
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Chemistry
Chemistry
Raymond Chang, Jason… 14th Edition
Chapter 12, Problem 91 ↓
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Consider the three mercury manometers shown. One of them has 1 mL of water on top of the mercury, another has 1 mL of a 1 m urea solution on top of the mercury, and the third one has 1 mL of a 1 m NaCl solution placed on top of the mercury. Which of these solutions is in the tube labeled X , which is in Y , and which is in Z ? Figure can't copy
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Consider the three mercury manometers shown in the top right column, p. 550. One of them has $1 \mathrm{~mL}$ of water on top of the mercury, another has $1 \mathrm{~mL}$ of a $1 \mathrm{~m}$ urea solution on top of the mercury, and the third one has $1 \mathrm{~mL}$ of a $1 \mathrm{~m} \mathrm{NaCl}$ solution placed on top of the mercury. Which of these solutions is in the tube labeled X, which is in Y, and which is in Z?

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Consider the three mercury manometers shown in the diagram. One of them has $1 \mathrm{mL}$ of water on top of the mercury, another has $1 \mathrm{mL}$ of a $1 \mathrm{m}$ urea solution on top of the mercury, and the third one has $1 \mathrm{mL}$ of a $1 \mathrm{m} \mathrm{NaCl}$ solution placed on top of the mercury. Which of these solutions is in the tube labeled $X$, which is in $Y,$ and which is in $Z ?$

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Transcript

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00:03 In order to identify which monometer is which, we need to understand what happens when we introduce pressure into the top of the monometer.
00:15 Normally the monometer is a vacuum.
00:18 If we introduce a pressure into the top of the monometer, that's going to push the mercury column down.
00:24 As it pushes the mercury column down, it's not going to rise as much.
00:29 In fact, if the pressure inside of the monometer equals the pressure outside of the monometer, then the mercury level won't rise at all because we have equal forces per unit area.
00:44 So understanding that concept is important.
00:47 Then we need to apply this concept with water and solutions.
00:54 Pure water is going to have the greatest vapor pressure.
00:57 It's going to have the greatest number of molecules of water that are escaping going into the gas phase, producing a vapor pressure...
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