Scientific notation

Homework #1 Please show your work for credit! 1. Write the following measurements in scientific notation: a) 3,450 m b) 6,000,000 atoms c) 0.105 g d) 0.00000678 mL 2. Write as decimal numbers: a) 8.11 x 10g b) 7.12 x 10-8s 3. Underline the significant digits in the following: a) 0.507 g b) 2.70 x 10-8 m c) 0.00700800 g/ml d) 6,000,000 L 4. Round to 3 s.f.: a) 4.239 cm b) 10.04 m c) 3.348 cm 5. Convert-be sure to use conversion factors! a) 18 m to mm b) 0.062 kg to g c) 5.45 x 10-8 L to KL d) 9.334 x 105 g to cg 6. Fill in the blanks: L a. b. mm 1 KL = 1 m = 1 g = 1 L= 1 m = C. d. g CL km e. [Note: you should memorize the meaning of these prefixes: k, d, c, m, 1 n, p]