Measuring with Significant Digits

How do you measure the volume using a graduated cylinder?

• Measurements must be taken from the top of the meniscus and at eye level

• Measurements must be taken by looking from above the cylinder

• Measurements must be taken by looking from below the cylinder

• Measurements must be taken from the bottom of the meniscus and at eye level

In a measurement, significant figure consist of the digits known ___________.

• only

• plus one estimated digit

• plus two estimated digits

How do we measure B with 3 significant digits?

• 9.2

• 9.20

• 9.25

• 9.00

How would you record measurement A?

• 7.8

• 7.82

• 7.825

• 7.90

How many significant digits would you report in this measurement?

• 1

• 2

• 3

• 4

What is the volume shown in this graduated cyclinder?

• 4.30 mL

• 4.35 mL

• 4.4 mL

• 4.40 mL

What is the volume shown in this graduated cyclinder?

• 24.0 mL

• 24 mL

• 23.7 mL

• 23 mL

What is the volume shown in this graduated cyclinder?

• 56 mL

• 60 mL

• 57.0 mL

• 56.0 mL

How many sig figs should be reported in this measurement of temperature?

• 1

• 2

• 3

• 4

How many sig figs are found in 0.020 mL?

• 1

• 2

• 3

• 4