AP Chemistry Significant Figures, Precision and Accuracy

2.3 x 10³ has______ significant figures?

• 3

• 5

• 2

• 4

Volume?

• 63.5 mL
• 63 mL
• 63.55 mL
• 6 mL

Tags

CCSS.3.MD.A.2

volume?

• 48 mL
• 48.2 mL
• 48.25 mL
• 4 mL

Tags

CCSS.3.MD.A.2

How many sig figs are there?
0.00400

• 1
• 3
• 5
• 6

Calculate 1.23 m x 0.89 m and give your answer with the correct number of significant figures.

• 1.0 m²
• 1.1 m²
• 1.0947 m²
• 1.095 m²

Calculate 923 g ÷ 20312 cm³ and give your answer with the correct number of significant figures.

• 0.04 g/cm³
• 0.045 g/cm³
• 0.0454 g/cm³
• 0.05 g/cm³

Tags

CCSS.8.EE.A.4

Calculate 0.020 cm x 50 cm x 11.1 cm and give your answer with the correct number of significant figures.

• 10 cm³
• 11.1 cm³
• 11 cm³
• 11. cm³

Tags

CCSS.6.NS.B.3

Calculate 12.34 + 1.234 + 0.1234

• 13.6974
• 13.697
• 13.70
• 13.7

Round 1009 to three sig figs

• 100
• 101
• 1010
• 1000

Three different people weigh a standard mass of 2.00 g on the same balance.  Each person obtains a reading of 7.32 g for the mass of the standard.  These results imply that the balance that was used is ____.

• accurate
• precise
• accurate and precise
• neither accurate nor precise