1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 01
1-1 (work) (Chemistry) 2
01 1-2 (scientific method) 1-1 1-1 20 100 C 20 20 3
1-3 (kg) (m) (International System of Units) SI 1-1 1-2 1-1 SI m kg s A K cd mol (1) (2) (3) 10cm = 10 10 2 m = 0.1m 6 7 10m = 10 10 μ m = 10 μm 9 10 10m= 10 10 nm= 10 nm 4
01 1-2 pico p 10 12 1 picometer (pm) = 1 10 12 m (0.000000000001m) nano n 10 9 1 nanogram (ng) = 1 10 9 g (0.000000001g) micro μ 10 6 1 microliter (μl) = 1 10 6 L (0.000001L) milli m 10 3 2 milliseconds (ms) = 2 10 3 s (0.002s) centi c 10 2 5 centimeters (cm) = 5 10 2 m (0.05m) deci d 10 1 1 deciliter (dl) = 1 10 1 L (0.1L) kilo K 10 3 1 kilometer (Km) = 1 10 3 m (1000m) mega M 10 6 3 megagrams (Mg) = 3 10 6 g (3,000,000g) giga G 10 9 5 gigameters (Gm) = 5 10 9 m (5,000,000,000m) tera T 10 12 1 teraliter (TL) = 1 10 12 L (1,000,000,000,000L) 1-4 1-2 22.1~22.2 22.1 5
1-2 (significant figures) 1-3 32cm 32.0cm 32.00cm 32cm 10cm 32.0cm 1cm 32.00cm 0.1cm 6
01 (a) (b) (c) 1-3 1 1.23km 1.23±0.01km 123000cm 7
1. 1~9 2. 0 (1) 0.037 (2) 2003 (3) 2300 2.300 2300 2300 3. 3 10 5 1 =0.6 0.6 1-1 0.010230 0.0123 1.2300 97000 9.70 9700 1-5 2.90kg 2.90 7 0.414285714 8
01 2.90kg 7 1. 2. 5.334kg + 207.4kg 212.7kg 3. 6.632cm 0.69 = 4.57608cm 4.6cm 2.90kg 7 =0.414285714kg 0.414kg 9
1-2 140+7.68+0.014 16 0.16+0.016 8.87 0.050 4.75 8.87 0.050 4.75 = 0.093368421 0.093 10
01 1-6 10 10 0 =1 1 1 10 = 1 10 = 0. 1 10 1 =10 2 1 10 = 2 10 = 0. 01 10 2 =10 10=100 3 1 10 = 3 10 = 0. 001 (scientific notation) A 10 n 1 A<10 n A 0.000000002814cm 2.814 10 9 cm 2.814 25000 2.5 10 4 2.50 10 4 2.500 10 4 11
1-3 0.00470 50203000000 472000 1-7 (mass) (weight) (kg) (g) (mg) 1-4 (a) (b) (c) 1-4 (a) (b) ±0.01g (c) ±0.0001g 12
01 1-8 (volume) SI (m 3 ) SI m 3 (L) (ml) 1m 3 = 1000L 1L = 1000mL = 1000c.c. = 1000cm 3 1-9 (density) = D = M V g/cm 3 g/l 1-3 1 25 C 1-3 1 25 C 1.29 g/l 0.179 g/l 0.997 g/cm 3 1.26 g/cm 3 13.6 g/cm 3 2.17 g/cm 3 7.86 g/cm 3 10.5 g/cm 3 13
1-4 5.6 7.05kg 1-3 g/cm 3 V=5.6 =5.6 10 3 cm 3 M=7.05kg=7.05 10 3 g M D = V = 3 7.05 10 g 3 5.6 10 cm 3 = 1.3g/cm 3 1-3 1-10 (temperature) SI (K) ( F) ( C) 1-5 32 F 0 C 273K 212 F 100 C 373K 180 100 K= C+273 14
01 F 32 C 0 = 180 100 9 F= C+ 32 5 5 C = ( F 32) 9 1-5 15
0 K 273 C 1-5 102 F F 32 180 = C 0 100 102 32 C 0 = 180 100 C=38.9 38.9 C K= C+273=38.9+273=311.9 312K 16
01 1. (1) 73.2g (2) 73.22g (3) 0.073kg (4) 0.7300kg 2. (1) 30.00 (2) 1.80 10 3 (3) 1.080 (4) 1.0 10-5 (5) 30 (6) 0.003 (7) 0.0030 (8) 0.00303 (9) 3.030 (10)30300 3. (1) 0.145+0.0077+0.024 (2) 30 740 6.3 (3) (12.69 11.0) (8.75+2.7) 17
(4) 5.49 10 3 7.23 10 4 (5) (5.5 10 2 )(7.562 10 5 ) 4. 602000000000000000000000 (1) (2) (3) 5. 3.51g/cm 3 1 0.2g 1.5 cm 3 6. 35 C 7. 8. (1) 459.0 (2) 0.00467 (3) 45987600 (4) 0.0000102 (5) 34730000000 9~11 18
01 C 1. (C 6 H 6 ) 5.3 5.5 5.8 5.5 5.5 2. (C 6 H 10 ) 6.0 6.5 6.5 6.3 6.5 3. 1 1 2.9 4.0 5.5 4.1 4. (C 4 H 9 OH) 28 29 30 29 26 5. (C 6 H 5 COOH) 122 124 123 122~123 9. (A) (C) (B) (D) 10. (A) (B) (C) (D) 1 C 11. (A) (B) (C) (D) 19
12~13 75 6 Ga 29.8 C 2403 C 310K 1.3 710K 5.3 12. (A)0.63 (B)1.9 (C)2.6 (D)3.7 (E)5.3 13. (400~600 C) (A) Al 660 C 2467 C (B) Ca 839 C 1484 C (C) Hg -38.8 C 356.6 C (D) In 156 C 2080 C (E) W 3410 C 5560 C 20