Significant Figures and Dimensional Analysis

How many significant figures does the following measurement have:

0.002040 mg

• 6

• 4

• 3

• 2

How many significant figures does the following measurement have:

1,341,000 m.

• 4

• 3

• 2

• 7

How many significant figures does the following measurement have:

10.0 g

• 1

• 4

• 3

• 2

How many significant figures does the following measurement have:

4.56 x 10² mm

• 5

• 4

• 6

• 3

How many significant figures does the following measurement have:

800. μg

• 6

• 1

• 2

• 3

Round 0.010229 mA to four sig figs

• 1022 mA

• 1023 mA

• 0.01023 mA

• 0.01022 mA

Round 1047.78 mL to three sig figs

• 104 mL

• 105 mL

• 1050 mL

• 1050.00 mL

Round 78.5 g to one significant figure

• 79 g

• 78.5 g

• 70 g

• 80 g

Round 0.05 g to three significant figure

• 0.0500 g

• 0.05 g

• 0.053 g

• 3.05 g

Round 19.99 Mb to two significant figures

• 20. Mb

• 20 Mb

• 19.9 Mb

• 19 Mb