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Using a Graduated Cylinder. Using a Graduated Cylinder. 1. Understand the size of the graduated cylinder and its markings- 100:1ml near the top means it is a 100 milliliter (ml) beaker and has a line marking every one milliliter increment

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using a graduated cylinder2
Using a Graduated Cylinder

1. Understand the size of the graduated cylinder and its markings-

100:1ml near the top means it is a 100 milliliter (ml) beaker and has a line marking every one milliliter increment

500:5ml near the top means it is a 500ml beaker and has a line marking every 5ml increment

What would 10:0.2ml mean?

how to read the volume of a liquid in a graduated cylinder
How to read the volume of a liquid in a graduated cylinder

The meniscus is “the upper surface of a liquid in a tube”. The meniscus tends to be U-shaped in a graduated cylinder.

Meniscus

how to read the volume of a liquid in a graduated cylinder5
How to read the volume of a liquid in a graduated cylinder

1. Always measure volume in a graduated cylinder at the bottom of the meniscus.

2. Always look straight from the side of the meniscus at the graduated cylinder to measure volume.

NOT from above

NOT from below

reading a graduated cylinder s volume
Reading a graduated cylinder’s volume

From above meniscus

WRONG!!!!!

From below meniscus

WRONG!!!!!

reading a graduated cylinder s volume7
Reading a graduated cylinder’s volume

From the side of the meniscus

CORRECT!!!

measuring volume of an irregularly shaped object
Measuring volume of an irregularly-shaped object

1.Put a moderate amount of water in a graduated cylinder and measure the volume.

2. Place the object in the graduated cylinder with the water.

3. Measure the volume of the water in the graduated cylinder with the object submerged in it.

4. Subtract the volume of just the water from the volume of the water with the objectsubmerged. This value tells you the volume of the object.

measuring volume of an irregularly shaped object9
Measuring volume of an irregularly-shaped object

For example, if there is 85ml of water in a graduated cylinder and you add an object, then the volume of the water and the object is 92ml. What is the volume of the object?

92ml (volume of water with object submerged)

-85ml (volume of just the water)

7ml (volume of object)