Chem1 Sig Fig DA Worksheet 8 2019 PDF

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significant figures worksheet with the correct answers...

Description

Chem 06.100

Preliminary Assignment

AY 2019-2020

Complete the following worksheet. There are twenty five questions (2 points each) for a maximum of fifty points total. Complete the following unit conversions: 1. 1.30 km = _________ m

5. 3.54 μg = _________ g

2. 400 cm3= _________ L

6. 1.2 L = ____________ mL

3. 400 cm3 = _________ m3

7. 84.5 cm = ___________ mm

4. 10.5 g = __________ kg

Rewrite the following numbers using scientific notation: 8. 0.0000745

10. 6,500 × 107

9. 93,000,000

11. 0.000015 × 108

Solve each of the following. Express all answers in scientific notation. 12. (4 × 102) — (2.6 × 102)

14. (8 × 103) / (2 × 105)

13. (1.2 × 103) + (3.6 × 104)

15. (5.21 × 10–6) × (2.4 × 10–4)

Determine how many significant figures are in each of these measurements. 16. 32 cm.

18. 53.670 mL

17. 2.489 g

19. 444.3060 km

Round the following measurements to two significant figures. 20. 90.356kg

22. 1234.665 g

21. 0.00775 mm

23. 1.023 m

Use Dimensional Analysis to solve the following: 24. A recipe for 18 cookies calls for 1 cup of chocolate chips. How many cups of chocolate chips are needed for 3 dozen cookies?

25. How many seconds are there in one calendar year? Start with the conversion factor 1 year = 365 days....