Ch. 3 Worksheet Chm 130 Conversion Practice Problems With Answer Key Page 2
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1
2Answers:
1. 2.00 kg (pound / 0.4536 kg) = 4.41 pounds
2. 0.50 quarts (946.4 mL / quart) = 470 mL
4
3. 1.00 km (mile / 1.609 km)(5280 feet / mile)(12 inch / ft) = 3.94 x 10
or 39,400 inches
4
4. 3.45 km (mile / 1.609 km)(5280 ft / mile) = 11,300 or 1.13 x 10
feet
5. 5.00 mile (1.609 km / mile) = 8.05 km
5
6. 72.5 miles (5280 ft / mile)(yd / 3 ft) = 1.28 x 10
or 128,000 yards
7. 979 cc (cc = mL)
o
8. -15.5
C + 273 = 258K
o
9. 315K - 273 = 42
C
o
10. 86
F
11. 8383 L ( kL / 1000 L) = 8.383 kL
12. 0.783 m (100 cm / m) = 78.3 cm
13. 252 mm (m / 1000 mm) = 0.252 m
4
14. 2.52 x 10
mL (L / 1000 mL) = 25.2 L
15. 0.123 m ( 1000mm / m) = 123 mm
16. 23.5 g / 3.5 mL = 6.7 g/mL
17. 9.29 mL (0.793 g/mL) = 7.37 g
18. 14.5 g ( mL / 0.828 g) = 17.5 mL
-3
19. 2.88 m ( 1 km / 1000 m) = 2.88 x 10
km
-3
-1
20. 4.56 x 10
L ( 100 cL / 1 L) = 4.56 x 10
or 0.456 cL
21. Since density of water = 1.000 g/mL: 0.0204 kg ( 1000g / kg)(1 mL / 1 g)(L / 1000 mL) = 0.0204 L
22. 0.0333 L ( 1000 mL / L )(19.32 g / mL) = 643 g
23. 2.00 mL (2.16 g / mL)(1000 mg / g ) = 4320 mg
-2
24. 9.85 x 10
L ( 1000mL / L)(0.802 g / mL) = 79.0 g
25. 0.497 g (100 cg / g) = 49.7 cg
3
2
26. 2.49 x 10
mg ( g / 1000 mg)(100 cg / g) = 249 cg or 2.49 x 10
cg
2
27. 0.258 L (1000 mL / L) = 2.58 x 10
or 258 mL
2
28. 0.987 kg (1000 g / kg) = 987 g then divide by 4.52 x 10
mL = 2.18 g/mL
-4
29. 5.25 mg ( g / 1000 mg)( 1 mL / 11.53 g Cu) = 4.55 x 10
mL
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