Physics, 07.08.2019 00:10 goblebrandon
Avolumetric flask made of pyrex is calibrated at 20.0°c. it is filled to the 150-ml mark with 34.5°c acetone. after the flask is filled, the acetone cools and the flask warms so that the combination of acetone and flask reaches a uniform temperature of 32.0°c. the combination is then cooled back to 20.0°c. (the average volume expansion coefficient of acetone is 1.50 10-4(°c)−1.) (a) what is the volume of the acetone when it cools to 20.0°c?
Answers: 2
![\Delta V=\nu_{initial}\beta _{acetone}\left [ T_f-T_i\right ]](/tpl/images/0172/4647/b07bd.png)
![V_{final}=\nu_{initial}+\nu_{initial}\beta _{acetone}\left [ T_f-T_i\right ]](/tpl/images/0172/4647/55a28.png)
![V_{final}=150+150\times 1.50\times 10^{-4}\left [ 20-32\right ]](/tpl/images/0172/4647/bbfd6.png)
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Avolumetric flask made of pyrex is calibrated at 20.0°c. it is filled to the 150-ml mark with 34.5°c...
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