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CHM2045_HOMEWORK1

CHM2045_HOMEWORK1 - a 2.05 b 61.09 c 0.0025 d 1000 5 Report...

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CHM 2045 HOMEWORK # 1 Spring 2007 Instructor: Dr. Fayiga DUE Jan 24, 2007 Directions: Show calculations for every problem. Do not do homework on this printed paper. 1. Convert a) 413cm to mm b) 0.265L to mL c) 508mg to kg d) 5.32 ps to μs 2. Convert a) 58.2 cm to in b) 268 yd to m c) 953 ft to m d) 343 yd to km 3. Change to scientific notation a) 2, 678, 908 b) 1, 173, 000 c) 0.00000000007581 d) 0.0203854 4. How many significant figures are in the following?
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Unformatted text preview: a) 2.05 b) 61.09 c) 0.0025 d) 1000 5. Report answers in proper number of significant figures a) 125.17 + 129 + 52.2 b) 132.56 - 14.1 c) 4.68 x 12.5 d) 452 x 6.2/14.3 6. Solve for x a) 3.42x = 6.5 b) x/12.3 =7.05 c) 0.525/x =0.25 d) 5x + 34 = 12 7. Calculate the density of a liquid if 50ml of the liquid has a mass of 78.26g 8. Convert a) 162 o F to o C b)-18 o C to o F c) 100K to o F d) – 8.6 o F to o C...
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