CHEM20ASG1-1 - NAME CHEMISTRY 20 ASSIGNMENT 1-1 TOPIC(S...

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NAME ________________________ CHEMISTRY 20 ASSIGNMENT 1-1 TOPIC(S) COVERED: Basic Skills TOTAL MARKS: 59 DIRECTIONS: Answer all questions on this paper. Please show all your work for mathematical calculations unless specifically otherwise. Complete sentences are not required. 1. Convert the following. (10 marks) 1. 0.75 kg to milligrams 2. 1500 millimeters to km 3. 2390 g to kg 4. 0.52 km to meters 5. 65 kg to g 6. 2.77 kg to mg 7. 1.08 kg to μ g 8. 9.57 x 10¯ 8 mm to nanometers 9. 2.00 L to mL 10. 35.28 mL to L 1
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2. Determine the number of significant digits in each of the following numbers. (10 marks) 1) 1234 _____ 2) 0.023 _____ 3) 890 _____ 4) 91010 _____ 5) 9010.0 _____ 6) 1090.0010 _____ 7) 0.00120 _____ 8) 3.4 x 10 4 _____ 9) 9.0 x 10 -3 _____ 10) 9.010 x 10 -2 _____ 11) 0.00030 _____ 12) 1020010 _____ 13) 780. _____ 14) 1000 _____ 15) 918.010 _____ 16) 0.0001 _____ 17) 0.00390 _____ 18) 8120 _____ 19) 7.991 x 10 -10 _____ 20) 72 _____ 3. Add the following and give the final answer with the correct number of significant digits. (5 marks) a) 9.54 + 6.578 = b) 8.55 + 11.6 + 10 =
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This note was uploaded on 04/09/2010 for the course CHEMISTRY 1AA3 taught by Professor Goneer during the Spring '08 term at McMaster University.

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CHEM20ASG1-1 - NAME CHEMISTRY 20 ASSIGNMENT 1-1 TOPIC(S...

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