Chem Math Skills

How many significant figures does 10.1 cm have?

• 1
• 2
• 3
• 4

How many significant figures does 0.010 m have?

• 1
• 2
• 3
• 4

How many significant figures does 10,080 sec have?

• 3
• 4
• 5
• 6

How many significant figures does 1.90 × 10^8 have?

• 3
• 4
• 6
• 8

Calculate 12.34 + 1.234 + 0.1234 with the correct amount of sig figs.

• 13.6974
• 13.697
• 13.70
• 13.7

Which could be a correct measurement?  

• 9 cm
• 8.5 cm
• 8.50 cm
• 8.1 cm

Which of these could be a correct measurement for the volume shown?  Click on this image for a better look.

• 40 mL
• 43 mL
• 43.0 mL
• 43.00 mL

Which is the product of these numbers, to the appropriate number of significant digits?
 56.2 x 9.2057 = 

• 517
• 517.4
• 517.36
• 517.00

Convert to scientific notation 305,000

• 3.0500
• 3.0500 x 10^5
• 3.05 x 10^5
• 3.05 x 10^2

Convert the following to scientific notation. 
0.000480

• 4.8 x 10^4
• 4.80 x 10^-4
• 4.8 x 10^3
• 4.80 x 10^3