Math in Chemistry 1

How many digits are significant in 0.010 mL?

• 1

• 2

• 3

• 4

How many digits are significant in 1205.00 g?

• 3

• 4

• 5

• 6

How many digits are significant in 1700 km?

• 1

• 2

• 3

• 4

If you were mixing a solution of various liquids and you added 3.21 L + 10.8 L + 0.83 L then how should the resulting solution be reported?

• 14.8 L

• 14.84 L

• 1.4800 x 10^1` L

• 14.800 L

While trying to find the volume of a plastic cube, you measure the length to be 15.3 cm, the width to be 2.91 cm and the height to be 0.4781 cm. What volume should you report?

• 21.28 cm³

• 21.3 cm³

• 21.29 cm³

• 21.28 cm³

Convert 7.3 mm to m.

• 0.73 m

• 0.073 m

• 0.0073 m

• 0.00073 m

Convert 2.74 Mg to cg.

• 2.74 x 10⁶ cg

• 2.74 x 10⁸ cg

• 2.74 x 10¹⁰ cg

• 2.74 x 10¹² cg

Convert 517 cm² to in² (HINT: 1 in = 2.54 cm).

• 1.31 x 10³ in²

• 3.33 x 10³ in²

• 204 in²

• 80.1 in²

The image shows an object being measured with a centimeter ruler. Report your measurement to the correct number of significant figures. (NOTE: there is more of the object to the left that has been omitted to show a close up)

• 11.64 cm

• 11.6 cm

• 11.5 cm

• 11.640 cm