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To draw liquid, push the button until it reaches:

A) The desired level
B) The maximum fill line
C) The halfway point
D) The minimum level

1 Answer

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Final answer:

When drawing liquid into a graduated cylinder, it should be filled up to the maximum fill line while making sure to read the volume at the bottom of the meniscus and keeping the cylinder level.

Step-by-step explanation:

To draw liquid, the appropriate answer to the question would be B) The maximum fill line. When measuring the volume of a liquid, it is essential to observe several best practices to ensure an accurate measurement. Firstly, when using a graduated cylinder or any volumetric instrument, you should always make your reading at the bottom of the meniscus, which is the lowest point of the curved surface of the liquid. The meniscus forms due to the surface tension between the liquid and the container.

Furthermore, it's critical to ensure that the measuring instrument is level and that your eye is at the same level as the top of the liquid to avoid parallax error. If a graduated cylinder has a maximum fill line, you should not exceed it to prevent overflow and potential inaccuracy due to the changing shape of the meniscus above the intended volume measure.

An understanding of pressure may also come into play, as highlighted by the example involving the cylinder of gas and an adjustable piston, where volume changes affect the pressure of the gas. However, in the context of simply drawing a liquid into a graduated cylinder, reaching the maximum fill line is sufficient without worrying about gas pressures unless the instructions specifically mention otherwise.

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User David Bekham
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