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# Chemistry PP

### Module 1 - Practice Problems

1. Convert 1.2 mL into L. 0.0012 L
2. Convert 34.50 km into m. 34,500 m
3. Convert 0.045 km into cm. 4500 cm
4. If an object has a volume of 34.5 mL, how many kL of space does it occupy. 0.0000345 kL
5. A box is measured to be 2.3 m by 4.2 m by 3.5 m. What is its volume is cubic centimeters? 33,810,000 cc
6. A nurse injects 34.5 cc of medicine into a patient. How many liters is that? 0.0345 L
7. Convert the following decimal numbers into scientific notation: (a.) 123.45 (b.) 0.0003040 (c.) 6,100,000 (d.) 0.1234 (a.) 1.2345 x 10² (b.) 3.040 x 10⁻⁴ (c.) 6.1 x 10⁶ (d.) 1.234 x 10⁻¹
8. Convert the following numbers back into decimal: (a.) 6.54 x 10³ (b.) 3.450 x 10⁻³ (c.) 3.56 x 10⁷ (d.) 4.050 x 10⁻⁷ (a.) 6540 (b.) 0.003450 (c.) 35,600,000 (d.) 0.0000004050
9. Lead has a density of 11.4 grams per mL. If I make a statue out of 3.45 L of lead, what is the statue's mass? 39,330 g
10. Gold has a density of 19.3 grams per cc. If a gold nugget has a mass of 45.6 kg, what is its volume? 2362.69 cc
Created by: LiseBrinkley