Question

The given graduated cylinder is calibrated in
milliliters (mL).
Determine the volume of liquid in the graduated cylinder
and report it to the correct number of significant figures.
Volume________mL

Answer 1

Answer:

• 24.5 ml

Explanation:

To measure correctly the volume of a liquid in a graduated cylinder, you must follow these recomendations:

• Place the graduated cylinder in a leveled and quite surface (the cylinder must not me vibrating or moving in any way).

• Place your self so that your eyes are at the level of the vertex of the meniscus. The meniscus is the curved surface of the liquid inside the vessel (the cylinder in this case).

• Read the two smallest marks on the cylinder between which the vertex (the bottom of the meniscus in this case) is. The measure is taken as the average between those two small marks.

The first and second recomendations are supposed to be correctly handled to take the picture. So, you must now follow the recomendations about reading around the bottom of the meniscus.

In the figure the bottom of the meniscus is between the marks 24 ml and 25 ml, so the correct measurement is (24ml + 25ml)/2 = 24.5 ml.

As you see, although the cylinder is calibrated to read 1 ml, you can appreciate up to half one miliiter, 0.5 ml.

The correct number of significant figures includes the certain digits (24) and one uncertain figure: the decimal 5.

Conclusion: Hence, the volume reported with the correct number of significant figures is 24.5 ml

Answer 2

The volume of the liquid in the cylinder is 24 mL.

The measuring cylinder is a standard apparatus used to measure the volume of a liquid. The measuring cylinder is transparent thereby making it easy to read off the volume of a liquid.

Looking at the measuring cylinder as shown, the volume of the liquid in the cylinder is 24mL. We read this off by looking at the position of the lower meniscus of the fluid.

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